paleo data:
  measurement table:
    google work sheet key: o15c0p
    table name: paleo1measurement1
    missing value: NaN
    d2 h:
      chronology integration time: 43475
      chronology integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
      chronology integration time uncertainty: 10
      chronology integration time units: years
      description: terrestrial biomarker
      has chron: 1
      has max value: -212.1
      has mean value: -236.8976
      has median value: -236.1
      has min value: -252.4
      has paleo depth: 1
      inferred material: soil water
      inferred material group: soil water
      inferred material group original: soil water
      instrument: HP 6890 GC, AS 200 autosampler, Finnigan MAT Delta+ XL mass spectrometer
      iso2k hackathon notes: integrationtime info should be moved to Sensor Integration time columns? Also, check that integration time is 1-10yrs with uncertainty of 10 years? -BK
      iso2k primary timeseries: FALSE
      is primary: false
      long name: dDUncertainty
      measurement material: n-alkanoic acid
      measurement material detail: C30
      measurement material screening: Carbon preference index
      measurement standard: VSMOW
      measurement table name: measurementTable1
      median res12k: NA
      notes: ; archiveType changed - was originally Lake sediment (LS)
      paleo data table name: pt1_1
      QC certification: ET
      t sid: LS12THAY01E
      uncertainty analytical: 2
      units: permil
      variable name: d2H
      variable name original: dD
      variable type: measured
      primary age column: false
      has time tsid: MAT1f2a2beb33
      values: -231.8
      values: -238.7
      values: -249.7
      values: -238.1
      values: -248.1
      values: -241.3
      values: -250.4
      values: -252.4
      values: -236.3
      values: -243.8
      values: -229.2
      values: -241.1
      values: -226.5
      values: -230.6
      values: -221
      values: -233.2
      values: -233.6
      values: -242.9
      values: -231.5
      values: -243.9
      values: -247.3
      values: -232.1
      values: -248.9
      values: -240
      values: -233.9
      values: -246.4
      values: -230.1
      values: -228
      values: -233.7
      values: -234.6
      values: -239.3
      values: -228.2
      values: -228.5
      values: -241
      values: -247
      values: -248.8
      values: -235.9
      values: -212.1
      values: -238.8
      values: -227.7
      values: NaN
      interpretation:
        basis: The remarkable similarity between d2Hwax and regional temperature indicates that d2Hwax is a useful proxy to reconstruct temper- ature at decadal- to sub-centennial-resolution.
        direction: positive
        interp direction: positive
        scope: climate
        seasonality: Summer
        seasonality original: summer
        variable: temperature
        variable detail: air@surface
        variable detail original: air
        variable group: Temperature
        variable group direction: negative
        variable group original: T
      interpretation:
        scope: climate
      interpretation:
        scope: climate
    year:
      data type: float
      description: Year AD
      has max value: 2003.5
      has mean value: 1903.9407
      has median value: 1964
      has min value: 1451
      inferred variable type: year
      iso2k primary timeseries: FALSE
      is primary: true
      long name: dDUncertainty
      measurement table name: measurementTable1
      median res12k: NA
      paleo data table name: pt1_1
      t sid: MAT1f2a2beb33
      units: yr AD
      units original: CE
      variable name: year
      variable type: inferred
      primary age column: true
      has time tsid: MAT1f2a2beb33
      values: 2003.5
      values: 2002
      values: 2001
      values: 2000
      values: 1999
      values: 1998
      values: 1997
      values: 1995.5
      values: 1993.5
      values: 1991.5
      values: 1990
      values: 1989
      values: 1987.5
      values: 1986
      values: 1985
      values: 1984
      values: 1982.5
      values: 1981
      values: 1980
      values: 1978.5
      values: 1977
      values: 1976
      values: 1974.5
      values: 1973
      values: 1972
      values: 1971
      values: 1969
      values: 1967
      values: 1965.5
      values: 1964
      values: 1963
      values: 1961.5
      values: 1960
      values: 1959
      values: 1958
      values: 1957
      values: 1956
      values: 1955
      values: 1953.5
      values: 1952
      values: 1950.5
      values: 1948.5
      values: 1940
      values: 1920
      values: 1900
      values: 1880
      values: 1860
      values: 1846
      values: 1821
      values: 1786
      values: 1751
      values: 1709
      values: 1661
      values: 1631
      values: 1596
      values: 1566
      values: 1521
      values: 1486
      values: 1451
      has resolution:
        has max value: 48
        has mean value: 9.5259
        has median value: 1.5
        has min value: 1
        units: AD
    depth:
      description: bottom depth (mm)
      has max value: 1360
      has mean value: 259.2576
      has median value: 120.8
      has min value: 7.4
      iso2k primary timeseries: FALSE
      is primary: false
      long name: dDUncertainty
      measurement table name: measurementTable1
      median res12k: NA
      notes: ; archiveType changed - was originally Lake sediment (LS)
      paleo data table name: pt1_1
      t sid: LPD32931661
      units: cm
      variable name: depth
      primary age column: false
      has time tsid: MAT1f2a2beb33
      values: 7.4
      values: 9.5
      values: 12.3
      values: 16.3
      values: 19.4
      values: 27.6
      values: 31
      values: 38.2
      values: 43.8
      values: 47.6
      values: 52.9
      values: 55.7
      values: 59.8
      values: 62.2
      values: 64.3
      values: 67.1
      values: 70
      values: 73.3
      values: 76.9
      values: 80.8
      values: 85.3
      values: 90.4
      values: 93.4
      values: 99.5
      values: 103.7
      values: 108
      values: 112.1
      values: 114.8
      values: 117.9
      values: 120.8
      values: 122.8
      values: 125.8
      values: 130.1
      values: 133.1
      values: 136.5
      values: 139.8
      values: 143.5
      values: 149.2
      values: 153.1
      values: 156.2
      values: 160.5
      values: 163.6
      values: 230
      values: 290
      values: 300
      values: 360
      values: 370
      values: 440
      values: 460
      values: 510
      values: 560
      values: 660
      values: 790
      values: 860
      values: 960
      values: 1050
      values: 1160
      values: 1260
      values: 1360
archive type: LakeSediment
archive type original: lake sediment
created by: matlab
data contributor: EKT
dataset id: r86BjdY5rD9VLWWNw0Tm
data set name: LS12THAY
dataset version: 1.0.6
google metadata worksheet: o3cwqcy
has chron: 1
has depth: 1
has paleo depth: 1
lipdverse link: https://lipdverse.org/data/r86BjdY5rD9VLWWNw0Tm/1_0_6
max year: 2003.5
min year: 1451
modern system description: GNIP data for Hall Beach and Pond Inlet, near the study site
modern system instrumental dataset coordinates: Pond Inlet: 72°42'N, 77°57'W 33 m asl; Hall Beach: 68°46'N, 81°13'W 1 m asl
modern system instrumental dataset URL: GNIP, IAEA; http://www.iaea.org/water, 10.1007/s10933-012-9584-7
n unique ages: 2
n unique good ages: 0
n unique other ages: 0
original data url: https://www.ncdc.noaa.gov/paleo/study/13114
original data URL: http://www.ncdc.noaa.gov/paleo/pubs/jopl2012arctic/jopl2012arctic.html
lipd version: 1.3

basis: The remarkable similarity between d2Hwax and regional temperature indicates that d2Hwax is a useful proxy to reconstruct temper- ature at decadal- to sub-centennial-resolution.
direction: positive
interp direction: positive
scope: climate
seasonality: Summer
seasonality original: summer
variable: temperature
variable detail: air@surface
variable detail original: air
variable group: Temperature
variable group direction: negative
variable group original: T

scope: climate

scope: climate

basis: The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.
coefficient: NA
direction: positive
fraction: NA
inferred material: soil water
integration time: 1 to 10
integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
integration time uncertainty: 10
integration time units: years
mathematical relation: linear
rank: 1
scope: isotope
seasonality: Jun-Aug
variable: precipitationIsotope
variable group: P_isotope
variable group direction: positive

basis: Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."
coefficient: NA
direction: negative
fraction: NA
inferred material: soil water
integration time: 1 to 10
integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
integration time uncertainty: 10
integration time units: years
mathematical relation: linear
rank: 2
scope: isotope
seasonality: Winter
variable: meltwater
variable group: winter snow melting during growing season

coefficient: NA
fraction: NA
rank: NA
scope: isotope

has max value: 48
has mean value: 9.5259
has median value: 1.5
has min value: 1
units: AD

compilation name: iso2k
compilation version: 0_14_8
compilation version: 0_15_0
compilation version: 1_0_0
compilation version: 1_0_1
compilation version: 1_1_0
compilation version: 1_1_1
compilation version: 1_1_2

basis: The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.
coefficient: NA
direction: positive
fraction: NA
inferred material: soil water
integration time: 1 to 10
integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
integration time uncertainty: 10
integration time units: years
mathematical relation: linear
rank: 1
scope: isotope
seasonality: Growing Season
variable: precipitationIsotope
variable group: P_isotope
variable group direction: positive

basis: Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."
coefficient: NA
direction: negative
fraction: NA
inferred material: soil water
integration time: 1 to 10
integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
integration time uncertainty: 10
integration time units: years
mathematical relation: linear
rank: 2
scope: isotope
seasonality: Winter
variable: meltwater
variable group: winter snow melting during growing season

coefficient: NA
fraction: NA
rank: NA
scope: isotope

has max value: 48
has mean value: 9.5259
has median value: 1.5
has min value: 1
units: AD

compilation name: iso2k
compilation version: 0_14_8
compilation version: 0_15_0
compilation version: 1_0_0
compilation version: 1_0_1
compilation version: 1_1_0
compilation version: 1_1_1
compilation version: 1_1_2

has max value: 48
has mean value: 9.5259
has median value: 1.5
has min value: 1
units: AD

chronology integration time: 43475
chronology integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
chronology integration time uncertainty: 10
chronology integration time units: years
description: terrestrial biomarker
has chron: 1
has max value: -240
has mean value: -255.9381
has median value: -255.65
has min value: -266.8
has paleo depth: 1
inferred material: soil water
inferred material group: soil water
inferred material group original: soil water
instrument: HP 6890 GC, AS 200 autosampler, Finnigan MAT Delta+ XL mass spectrometer
iso2k hackathon notes: integrationtime info should be moved to Sensor Integration time columns? Also, check that integration time is 1-10yrs with uncertainty of 10 years? -BK
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: n-alkanoic acid
measurement material detail: C24
measurement material screening: Carbon preference index
measurement standard: VSMOW
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY01B
uncertainty analytical: 2
units: permil
variable name: d2H
variable name original: dD
variable type: measured
primary age column: false
has time tsid: MAT1f2a2beb33
values: -255.8
values: -260.8
values: -260
values: -253.5
values: -254
values: -261.1
values: -260.7
values: -265.5
values: -266.8
values: -261.4
values: -261
values: -261.8
values: -257.3
values: -253.9
values: -251.9
values: -247.9
values: -253.6
values: -254.2
values: -256.3
values: -266.6
values: -260.4
values: -262.3
values: -255.6
values: -259.5
values: -255.7
values: -247.8
values: -249.6
values: -240
values: -252.1
values: -255.4
values: -254.1
values: -250.6
values: -254.4
values: -262.6
values: -256.7
values: -243.6
values: -256.4
values: -245.1
values: NaN
interpretation:
  basis: The remarkable similarity between d2Hwax and regional temperature indicates that d2Hwax is a useful proxy to reconstruct temper- ature at decadal- to sub-centennial-resolution.
  direction: positive
  interp direction: positive
  scope: climate
  seasonality: Summer
  seasonality original: summer
  variable: temperature
  variable detail: air@surface
  variable detail original: air
  variable group: Temperature
  variable group direction: negative
  variable group original: T
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  basis: The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.
  coefficient: NA
  direction: positive
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 1
  scope: isotope
  seasonality: Growing Season
  variable: precipitationIsotope
  variable group: P_isotope
  variable group direction: positive
interpretation:
  basis: Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."
  coefficient: NA
  direction: negative
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 2
  scope: isotope
  seasonality: Winter
  variable: meltwater
  variable group: winter snow melting during growing season

coefficient: NA
fraction: NA
rank: NA
scope: isotope

has max value: 48
has mean value: 9.5259
has median value: 1.5
has min value: 1
units: AD

compilation name: iso2k
compilation version: 0_14_8
compilation version: 0_15_0
compilation version: 1_0_0
compilation version: 1_0_1
compilation version: 1_1_0
compilation version: 1_1_1
compilation version: 1_1_2

chronology integration time: 43475
chronology integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
chronology integration time uncertainty: 10
chronology integration time units: years
description: terrestrial biomarker
has chron: 1
has max value: -235.6
has mean value: -256.7339
has median value: -257.1
has min value: -266.7
has paleo depth: 1
inferred material: soil water
inferred material group: soil water
inferred material group original: soil water
instrument: HP 6890 GC, AS 200 autosampler, Finnigan MAT Delta+ XL mass spectrometer
iso2k certification: ET
iso2k hackathon notes: integrationtime info should be moved to Sensor Integration time columns? Also, check that integration time is 1-10yrs with uncertainty of 10 years? -BK
iso2k primary timeseries: TRUE
iso2k UI: LS12THAY01
is primary: false
long name: dDUncertainty
measurement material: n-alkanoic acid
measurement material detail: C26
measurement material screening: Carbon preference index
measurement standard: VSMOW
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
q cnotes: integrationtime info should be moved to Sensor Integration time columns? Also, check that integration time is 1-10yrs with uncertainty of 10 years? -BK
t sid: LS12THAY01C
uncertainty analytical: 2
units: permil
variable name: d2H
variable name original: dD
variable type: measured
primary age column: false
has time tsid: MAT1f2a2beb33
values: -256.1
values: -257.1
values: -258.1
values: -254.3
values: -254.9
values: -261.4
values: -257.7
values: -265.3
values: -266.7
values: -258.9
values: -262.2
values: -258.7
values: -255.1
values: -252
values: -251.5
values: -253.2
values: -249.8
values: -253
values: -255.5
values: -254.2
values: -264.9
values: -262.9
values: -252.1
values: -254.7
values: -259.6
values: -255.7
values: -252.6
values: -235.6
values: -250.6
values: -254.8
values: -250.7
values: -261.6
values: -257.9
values: -245.6
values: -250.5
values: -259.2
values: -256.6
values: -260
values: -256.8
values: -258.8
values: -265.9

chronology integration time: 43475
chronology integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
chronology integration time uncertainty: 10
chronology integration time units: years
description: terrestrial biomarker
has chron: 1
has max value: -234.3
has mean value: -247.6905
has median value: -247.4
has min value: -258
has paleo depth: 1
inferred material: soil water
inferred material group: soil water
inferred material group original: soil water
instrument: HP 6890 GC, AS 200 autosampler, Finnigan MAT Delta+ XL mass spectrometer
iso2k hackathon notes: integrationtime info should be moved to Sensor Integration time columns? Also, check that integration time is 1-10yrs with uncertainty of 10 years? -BK
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: n-alkanoic acid
measurement material detail: C28
measurement material screening: Carbon preference index
measurement standard: VSMOW
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY01D
uncertainty analytical: 2
units: permil
variable name: d2H
variable name original: dD
variable type: measured
primary age column: false
has time tsid: MAT1f2a2beb33
values: -247.3
values: -253.1
values: -249.7
values: -249.3
values: -253.9
values: -248.2
values: -256.1
values: -258
values: -247.5
values: -256.2
values: -254.9
values: -250.7
values: -242.6
values: -244
values: -237.6
values: -243.5
values: -245.8
values: -248.5
values: -244.6
values: -257.6
values: -252.9
values: -241.8
values: -256.7
values: -246.1
values: -248.9
values: -244.8
values: -247
values: -234.3
values: -245.2
values: -243.4
values: -243.3
values: -250.1
values: -252.3
values: -248.1
values: -240.8
values: -240.6
values: NaN
interpretation:
  basis: The remarkable similarity between d2Hwax and regional temperature indicates that d2Hwax is a useful proxy to reconstruct temper- ature at decadal- to sub-centennial-resolution.
  direction: positive
  interp direction: positive
  scope: climate
  seasonality: Summer
  seasonality original: summer
  variable: temperature
  variable detail: air@surface
  variable detail original: air
  variable group: Temperature
  variable group direction: negative
  variable group original: T
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  basis: The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.
  coefficient: NA
  direction: positive
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 1
  scope: isotope
  seasonality: Growing Season
  variable: precipitationIsotope
  variable group: P_isotope
  variable group direction: positive
interpretation:
  basis: Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."
  coefficient: NA
  direction: negative
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 2
  scope: isotope
  seasonality: Winter
  variable: meltwater
  variable group: winter snow melting during growing season
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

compilation name: iso2k
compilation version: 0_14_8
compilation version: 0_15_0
compilation version: 1_0_0
compilation version: 1_0_1
compilation version: 1_1_0
compilation version: 1_1_1
compilation version: 1_1_2

description: stdev of dD of terrestrial biomarker
has chron: 1
has max value: 21.1
has mean value: 6.031
has median value: 4.8
has min value: 0.8
has paleo depth: 1
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: d2H
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY0130s
units: permil
variable name: uncertainty
primary age column: false
has time tsid: MAT1f2a2beb33
values: 3.8
values: 18.5
values: 3.9
values: 4.4
values: 2.6
values: 2.8
values: 9
values: 6.5
values: 6.4
values: 2.7
values: 4.9
values: 12.1
values: 4.2
values: 5.8
values: 5.7
values: 14.5
values: 7.2
values: 5.5
values: 0.8
values: 4.6
values: 6.3
values: 2.2
values: 1.7
values: 2.1
values: 16.1
values: 2.5
values: 5.3
values: 6.6
values: 1
values: 5.6
values: 7.4
values: 3.6
values: 21.1
values: 4.7
values: 3.1
values: NaN
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

description: stdev of dD of terrestrial biomarker
has chron: 1
has max value: 18.1
has mean value: 2.069
has median value: 1.55
has min value: 0.1
has paleo depth: 1
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: d2H
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY0124s
units: permil
variable name: uncertainty
primary age column: false
has time tsid: MAT1f2a2beb33
values: 1.9
values: 3
values: 1.2
values: 1.6
values: 1.7
values: 0.4
values: 2.5
values: 1.5
values: 2.2
values: 0.3
values: 3.6
values: 6.5
values: 0.8
values: 1.8
values: 0.6
values: 0.5
values: 0.7
values: 2.6
values: 1
values: 2
values: 5.2
values: 1.1
values: 18.1
values: 0.2
values: 1.3
values: 4.6
values: 0.1
values: NaN
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

description: stdev of dD of terrestrial biomarker
has chron: 1
has max value: 27
has mean value: 2.5776
has median value: 1.85
has min value: 0.1
has paleo depth: 1
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: d2H
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY0126s
units: permil
variable name: uncertainty
primary age column: false
has time tsid: MAT1f2a2beb33
values: 3
values: 4.2
values: 1.6
values: 1.1
values: 1.3
values: 1.8
values: 0.4
values: 2.6
values: 3.6
values: 0.5
values: 1.2
values: 1.4
values: 3.1
values: 2.9
values: 0.9
values: 0.7
values: 1.7
values: 2.5
values: 2.1
values: 2.4
values: 3.2
values: 27
values: 0.6
values: 2.3
values: 1
values: 11.5
values: 4.5
values: 2
values: 2.7
values: 0.1
values: 3.3
values: NaN
values: 1.9
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

description: stdev of dD of terrestrial biomarker
has chron: 1
has max value: 17.6
has mean value: 3.4762
has median value: 2.5
has min value: 0.6
has paleo depth: 1
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement material: d2H
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
QC certification: ET
t sid: LS12THAY0128s
units: permil
variable name: uncertainty
primary age column: false
has time tsid: MAT1f2a2beb33
values: 3.3
values: 4.4
values: 2.1
values: 0.9
values: 1.5
values: 2.8
values: 1.3
values: 3.2
values: 4.6
values: 3.7
values: 1.7
values: 3.1
values: 2.3
values: 10.2
values: 5.6
values: 13.5
values: 2.5
values: 0.6
values: 1.4
values: 1.9
values: 2.4
values: 4
values: 17.6
values: 4.7
values: 2.7
values: 0.7
values: 7.2
values: 7.1
values: 1.6
values: NaN
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

description: terrestrial biomarker
has max value: -204.8
has mean value: -255.9429
has median value: -258.05
has min value: -268.8
instrument: HP 6890 GC, AS 200 autosampler, Finnigan MAT Delta+ XL mass spectrometer
iso2k primary timeseries: ?
is primary: false
long name: dDUncertainty
measurement material: n-alkanoic acid
measurement material detail: C22
measurement material screening: Carbon preference index
measurement standard: VSMOW
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
t sid: LS12THAY01A
uncertainty analytical: 2
units: permil
variable name: d2H
variable name original: dD
variable type: measured
primary age column: false
has time tsid: MAT1f2a2beb33
values: -258.7
values: -263
values: -260.4
values: -251.6
values: -204.8
values: -268.8
values: -262.3
values: -266.4
values: -266
values: -264.4
values: -259.8
values: -261.5
values: -254
values: -248.1
values: -246.8
values: -247.4
values: -255.3
values: -257.8
values: -257
values: -264.5
values: -255.5
values: -266.3
values: -260.1
values: -257.6
values: -251.4
values: -249.9
values: -255.6
values: -251.7
values: -249.8
values: -256.5
values: -254.6
values: -234.9
values: -258.3
values: -264.2
values: -262.1
values: -241.5
values: -250
values: -259.5
values: NaN
interpretation:
  basis: The remarkable similarity between d2Hwax and regional temperature indicates that d2Hwax is a useful proxy to reconstruct temper- ature at decadal- to sub-centennial-resolution.
  interp direction: positive
  scope: climate
  seasonality: Summer
  seasonality original: summer
  variable: temperature
  variable detail: air@surface
  variable detail original: air
  variable group: Temperature
  variable group direction: negative
  variable group original: T
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  basis: The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.
  coefficient: NA
  direction: positive
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 1
  scope: isotope
  seasonality: Growing Season
  variable: precipitationIsotope
  variable group: P_isotope
  variable group direction: positive
interpretation:
  basis: Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."
  coefficient: NA
  direction: negative
  fraction: NA
  inferred material: soil water
  integration time: 1 to 10
  integration time basis: Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.
  integration time uncertainty: 10
  integration time units: years
  mathematical relation: linear
  rank: 2
  scope: isotope
  seasonality: Winter
  variable: meltwater
  variable group: winter snow melting during growing season
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD
in compilation beta:
  compilation name: iso2k
  compilation version: 0_14_8
  compilation version: 0_15_0
  compilation version: 1_0_0
  compilation version: 1_0_1
  compilation version: 1_1_0
  compilation version: 1_1_1
  compilation version: 1_1_2

data type: float
description: depth
has max value: 1350
has mean value: 253.6034
has median value: 117.9
has min value: 0
iso2k primary timeseries: FALSE
is primary: false
long name: dDUncertainty
measurement table name: measurementTable1
median res12k: NA
paleo data table name: pt1_1
t sid: MATbc6c134f26
units: cm
variable name: depth
variable type: measured
primary age column: false
has time tsid: MAT1f2a2beb33
values: 0
values: 7.4
values: 9.5
values: 12.3
values: 16.3
values: 19.4
values: 27.6
values: 31
values: 38.2
values: 43.8
values: 47.6
values: 52.9
values: 55.7
values: 59.8
values: 62.2
values: 64.3
values: 67.1
values: 70
values: 73.3
values: 76.9
values: 80.8
values: 85.3
values: 90.4
values: 93.4
values: 99.5
values: 103.7
values: 108
values: 112.1
values: 114.8
values: 117.9
values: 120.8
values: 122.8
values: 125.8
values: 130.1
values: 133.1
values: 136.5
values: 139.8
values: 143.5
values: 149.2
values: 153.1
values: 156.2
values: 160.5
values: 220
values: 280
values: 290
values: 350
values: 360
values: 430
values: 450
values: 500
values: 550
values: 650
values: 780
values: 850
values: 950
values: 1040
values: 1150
values: 1250
values: 1350
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

has max value: 13.2
has mean value: 3.1333
has median value: 2.3
has min value: 0.2
iso2k primary timeseries: ?
is primary: false
long name: dDUncertainty
measurement material: d2H
measurement material detail: C22
measurement table name: measurementTable1
median res12k: NA
notes: ; archiveType changed - was originally Lake sediment (LS)
paleo data table name: pt1_1
t sid: LS12THAY0122s
units: permil
variable name: uncertainty
primary age column: false
has time tsid: MAT1f2a2beb33
values: 6.3
values: 3.1
values: 1.7
values: 2.1
values: 1
values: 1.8
values: 4
values: 4.5
values: 1.9
values: 2.8
values: 13.2
values: 1.2
values: 9.9
values: 3
values: 5.9
values: 0.9
values: 0.4
values: 5.5
values: 1.4
values: 0.3
values: 0.7
values: 0.2
values: 3.9
values: 3.2
values: 4.4
values: 4.2
values: 1.5
values: 3.8
values: 2.4
values: 2.2
values: 7.3
values: 2
values: 4.6
values: 3.4
values: 4.3
values: 4.1
values: NaN
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  scope: climate
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
interpretation:
  coefficient: NA
  fraction: NA
  rank: NA
  scope: isotope
has resolution:
  has max value: 48
  has mean value: 9.5259
  has median value: 1.5
  has min value: 1
  units: AD

measurement table:
  google work sheet key: ov3msw5
  table name: chron1measurement1
  missing value: NaN
  depth:
    measurement table name: measurementTable1
    t sid: chron1
    variable name: depth
    description: mid-point depth
    units: cm
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: 31
    has mean value: 16.4286
    has median value: 17
    has min value: 1
    paleo name: chron1
    number: 1
    values: 1
    values: 3
    values: 5
    values: 7
    values: 9
    values: 10.5
    values: 11.5
    values: 12.5
    values: 13.5
    values: 14.5
    values: 15.25
    values: 15.75
    values: 16.25
    values: 16.75
    values: 17.25
    values: 17.75
    values: 18.25
    values: 18.75
    values: 19.25
    values: 19.75
    values: 20.25
    values: 20.75
    values: 21.5
    values: 23
    values: 25
    values: 27
    values: 29
    values: 31
  age14 c:
    measurement table name: measurementTable1
    t sid: chron2
    variable name: age14C
    description: 14C years before 1950
    units: yr14C BP
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 2
    values: NaN
  SD:
    measurement table name: measurementTable1
    t sid: chron3
    variable name: SD
    description: 14C years uncertainty
    units: yr14C BP
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    variable name original: age14Cuncertainty
    number: 3
    values: NaN
  fraction modern:
    measurement table name: measurementTable1
    t sid: chron4
    variable name: fractionModern
    description: fraction of modern 14C activity
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 4
    values: NaN
  fraction modern uncertainty:
    measurement table name: measurementTable1
    t sid: chron5
    variable name: fractionModernUncertainty
    description: fraction of modern 14C activity uncertainty
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 5
    values: NaN
  delta13 c:
    measurement table name: measurementTable1
    t sid: chron6
    variable name: delta13C
    description: delta13C of material analyzed for 14C
    units: permil
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 6
    values: NaN
  delta13 cuncertainty:
    measurement table name: measurementTable1
    t sid: chron7
    variable name: delta13Cuncertainty
    description: delta13C uncertainty
    units: permil
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 7
    values: NaN
  thickness:
    measurement table name: measurementTable1
    t sid: chron8
    variable name: thickness
    description: thickness of sample (along depth axis)
    units: cm
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: 2
    has mean value: 1.1429
    has median value: 1
    has min value: 0.5
    paleo name: chron1
    number: 8
    values: 2
    values: 1
    values: 0.5
  lab ID:
    measurement table name: measurementTable1
    t sid: chron9
    variable name: labID
    description: laboratory ID from radiocarbon facility
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 9
    values: NaN
  material dated:
    measurement table name: measurementTable1
    t sid: chron10
    variable name: materialDated
    description: material analyzed
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: _NaN_
    has mean value: _NaN_
    has median value: _NaN_
    has min value: _NaN_
    paleo name: chron1
    number: 10
    values: 239+240Pu (Bq/kg)
  activity:
    measurement table name: measurementTable1
    t sid: chron11
    variable name: activity
    description: 210Pb, 239+240Pu or 137Cs activity
    units: Bq g-1
    chron name: chron1
    chron measurement table number: 1
    chron number: 1
    has max value: 7.31
    has mean value: 0.9439
    has median value: 0.1
    has min value: 0.1
    paleo name: chron1
    number: 11
    values: 0.3
    values: 0.14
    values: 0.32
    values: 0.37
    values: 0.6
    values: 0.91
    values: 1.81
    values: 7.31
    values: 5.02
    values: 1.9
    values: 2.42
    values: 3.44
    values: 0.39
    values: 0.1

measurement table name: measurementTable1
t sid: chron12
variable name: activityUncertainty
description: 210Pb, 239+240Pu or 137Cs activity uncertainty
units: Bq g-1
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: 0.2
has mean value: 0.09
has median value: 0.09
has min value: 0.01
paleo name: chron1
number: 12
values: 0.01
values: 0.03
values: 0.1
values: 0.09
values: 0.2
values: 0.19
values: 0.16
values: 0.17
values: NaN

measurement table name: measurementTable1
t sid: chron13
variable name: supportedActivity
description: Y if supported 210Pb activity, N if unsupported 210Pb activity
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
number: 13
values: NaN

measurement table name: measurementTable1
t sid: chron14
variable name: x210PbModel
description: model used to convert 210Pb activity to age (e.g., constant rate of supply)
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
number: 14
values: NaN

measurement table name: measurementTable1
t sid: chron15
variable name: age
description: years before 1950 (calibrated age, or ages that dont need calibration)
units: yr BP
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: -2
has mean value: -7.5
has median value: -7.5
has min value: -13
paleo name: chron1
number: 15
values: NaN
values: -13
values: -2

measurement table name: measurementTable1
t sid: chron16
variable name: SD
description: uncertainty in age
units: yr BP
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
variable name original: ageUncertainty
number: 16
values: NaN

measurement table name: measurementTable1
t sid: chron17
variable name: reservoirAge14C
description: 14C reservoir age
units: yr14C BP
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
number: 17
values: NaN

measurement table name: measurementTable1
t sid: chron18
variable name: reservoirAge14CUncertainty
description: 14C reservoir age uncertainty
units: yr14C BP
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
number: 18
values: NaN

measurement table name: measurementTable1
t sid: chron19
variable name: useInAgeModel
description: was this date used in the age model?
chron name: chron1
chron measurement table number: 1
chron number: 1
has max value: _NaN_
has mean value: _NaN_
has median value: _NaN_
has min value: _NaN_
paleo name: chron1
number: 19
values: Y

version: 1.0.6
last version: 1.0.5
curator: nicholas
timestamp: 2025-04-17 20:04:39.300509 UTC
changes:
  paleo column metadata: depth (LPD32931661): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: depth (LPD32931661): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0122s): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0124s): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0126s): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0128s): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0130s): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01A): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01A): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01B): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01B): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01C): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01C): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01D): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01D): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01E): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d2H (LS12THAY01E): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: year (MAT1f2a2beb33): paleoData_isPrimary: '' has been replaced by 'TRUE'
  paleo column metadata: year (MAT1f2a2beb33): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'
  paleo column metadata: depth (MATbc6c134f26): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: depth (MATbc6c134f26): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'

version: 1.0.5
last version: 1.0.4
curator: nicholas
timestamp: 2025-04-11 16:26:57.588994 UTC
changes:
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation1_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0122s): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation1_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0124s): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation1_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0126s): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation1_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0128s): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation1_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: uncertainty (LS12THAY0130s): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_basis: 'The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_direction: 'positive' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_inferredMaterial: 'soil water' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_integrationTime: '1 to 10' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_integrationTimeBasis: 'Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_integrationTimeUncertainty: '10' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_integrationTimeUnits: 'years' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_mathematicalRelation: 'linear' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_rank: '1' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_seasonality: 'Growing Season' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_variable: 'precipitationIsotope' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_variableGroup: 'P_isotope' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_variableGroupDirection: 'positive' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_basis: 'Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_direction: 'negative' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_inferredMaterial: 'soil water' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_integrationTime: '1 to 10' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_integrationTimeBasis: 'Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_integrationTimeUncertainty: '10' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_integrationTimeUnits: 'years' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_mathematicalRelation: 'linear' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_rank: '2' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_seasonality: 'Winter' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_variable: 'meltwater' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_variableGroup: 'winter snow melting during growing season' has been replaced by ''
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_rank: '' has been replaced by '1'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_basis: '' has been replaced by 'The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake.'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_direction: '' has been replaced by 'positive'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_inferredMaterial: '' has been replaced by 'soil water'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_integrationTime: '' has been replaced by '1 to 10'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_integrationTimeBasis: '' has been replaced by 'Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_integrationTimeUncertainty: '' has been replaced by '10'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_integrationTimeUnits: '' has been replaced by 'years'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_mathematicalRelation: '' has been replaced by 'linear'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_seasonality: '' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_variable: '' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_variableGroup: '' has been replaced by 'P_isotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_variableGroupDirection: '' has been replaced by 'positive'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_basis: '' has been replaced by 'Bottom line: more snowmelt providing source water to plants causes pool of plant source water to be more 2H-depleted. "The major source of water for plants in the Arctic, where permafrost precludes extensive groundwater systems, is precipitation, either as snowmelt or summer rain (Elberling et al. 2008). Thus, we hypothesize that d2Hwax in the Arctic is likely closely related to d2Hprecip. Leaf wax synthesis occurs during the summer months when plants are neither temper- ature- nor light-limited. The apparent fractionation (e) between leaf waxes and source waters varies with relative humidity (RH) and with potential evapotrans- piration (Sachse et al. 2012). Long-term average growing season (June, July, August) RH at Clyde River is 80% (Environment Canada, 2011). The eleven-month dataset from Silasiutitalik at the head of Clyde Inlet suggests that growing season RH is slightly lower inland, around 75% (Kangiqtugaapik (Clyde River) Weather Station Network, 2011). The n-alkanoic acids synthesized by plants that grow at 70?80% RH have an e of -100 to -120% relative to annual mean precipitation (Hou et al. 2008). The d2Hwax values from Ayr Lake sediments (-240 to -265 %) therefore suggest that source water d2H should range between -140 to -165% (assuming an e of -100%) and -120 to -145% (assuming an e of -120%). These calculated source water d2H values are within the range of measured summer d2Hprecip values for both Pond Inlet and Hall Beach, although the values obtained with the larger e are close to the maximum summer d2Hprecip values for Pond Inlet. We therefore hypothesize that plants in this catchment utilize summer precipitation as their main water source (Fig. 2). Variability in summer d2Hprecip, or utilization of small but varying amounts of winter precipitation, is likely driving variability in d2Hwax at Ayr Lake."'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_direction: '' has been replaced by 'negative'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_inferredMaterial: '' has been replaced by 'soil water'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_integrationTime: '' has been replaced by '1 to 10'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_integrationTimeBasis: '' has been replaced by 'Leaf wax hydrogen isotopes exhibit a surprising amount of variability at the sub-decadal scale (Fig. 6). This high degree of variability indicates that leaf waxes are likely produced, transported and deposited in a relatively short period of time.'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_integrationTimeUncertainty: '' has been replaced by '10'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_integrationTimeUnits: '' has been replaced by 'years'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_mathematicalRelation: '' has been replaced by 'linear'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_rank: '' has been replaced by '2'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation5_scope: '' has been replaced by 'isotope'

version: 1.0.4
last version: 1.0.3
curator: nicholas
timestamp: 2025-04-09 20:48:06.374036 UTC
notes: Updated lipdverse database entry with a changed file.
changes:
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation2_seasonality: 'JJA' has been replaced by 'Jun-Aug'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'

version: 1.0.3
last version: 1.0.2
curator: nicholas
timestamp: 2025-04-09 18:28:05.589289 UTC
notes: Changes made as part of LiPDverse vocabulary standardization process
changes:
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation2_seasonality: 'JJA' has been replaced by 'Jun-Aug'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation2_seasonality: 'growing season' has been replaced by 'Growing Season'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation3_seasonality: 'winter' has been replaced by 'Winter'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation3_variable: 'winter snow melting during growing season' has been replaced by 'meltwater'

version: 1.0.2
last version: 1.0.1
curator: nicholas
timestamp: 2025-04-08 17:32:58.225104 UTC
notes: Changes made as part of LiPDverse vocabulary standardization process
changes:
  paleo column metadata: depth (LPD32931661): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: uncertainty (LS12THAY0122s): paleoData_measurementMaterial: 'n-alkanoic acid' has been replaced by 'd2H'
  paleo column metadata: uncertainty (LS12THAY0122s): paleoData_variableName: 'dDUncertainty' has been replaced by 'uncertainty'
  paleo column metadata: uncertainty (LS12THAY0122s): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0122s): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: uncertainty (LS12THAY0124s): paleoData_measurementMaterial: 'C24 n-alkanoic acid' has been replaced by 'd2H'
  paleo column metadata: uncertainty (LS12THAY0124s): paleoData_variableName: 'dDUncertainty' has been replaced by 'uncertainty'
  paleo column metadata: uncertainty (LS12THAY0124s): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0124s): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: uncertainty (LS12THAY0126s): paleoData_measurementMaterial: 'C26 n-alkanoic acid' has been replaced by 'd2H'
  paleo column metadata: uncertainty (LS12THAY0126s): paleoData_variableName: 'dDUncertainty' has been replaced by 'uncertainty'
  paleo column metadata: uncertainty (LS12THAY0126s): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0126s): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: uncertainty (LS12THAY0128s): paleoData_measurementMaterial: 'C28 n-alkanoic acid' has been replaced by 'd2H'
  paleo column metadata: uncertainty (LS12THAY0128s): paleoData_variableName: 'dDUncertainty' has been replaced by 'uncertainty'
  paleo column metadata: uncertainty (LS12THAY0128s): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0128s): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: uncertainty (LS12THAY0130s): paleoData_measurementMaterial: 'C30 n-alkanoic acid' has been replaced by 'd2H'
  paleo column metadata: uncertainty (LS12THAY0130s): paleoData_variableName: 'dDUncertainty' has been replaced by 'uncertainty'
  paleo column metadata: uncertainty (LS12THAY0130s): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: uncertainty (LS12THAY0130s): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: d2H (LS12THAY01A): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: d2H (LS12THAY01B): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: d2H (LS12THAY01C): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: d2H (LS12THAY01D): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: d2H (LS12THAY01E): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: year (MAT1f2a2beb33): paleoData_units: 'AD' has been replaced by 'yr AD'
  paleo column metadata: year (MAT1f2a2beb33): paleoData_longName: '' has been replaced by 'dDUncertainty'
  paleo column metadata: depth (MATbc6c134f26): paleoData_longName: '' has been replaced by 'dDUncertainty'

version: 1.0.1
last version: 1.0.0
curator: nicholas
timestamp: 2022-08-16 23:29:04 UTC
changes:
  paleo interpretation metadata: dDUncertainty (LS12THAY0122s): interpretation1_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0122s): interpretation2_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0122s): interpretation3_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0124s): interpretation1_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0124s): interpretation2_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0124s): interpretation3_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0126s): interpretation1_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0126s): interpretation2_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0126s): interpretation3_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0128s): interpretation1_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0128s): interpretation2_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0128s): interpretation3_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0130s): interpretation1_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0130s): interpretation2_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: dDUncertainty (LS12THAY0130s): interpretation3_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01A): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01B): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01C): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01D): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d2H (LS12THAY01E): interpretation4_scope: '' has been replaced by 'isotope'

author:
  name: Thomas
citation: Thomas, E. K., McGrane, S., Briner, J. P. and Huang, Y.: Leaf wax δ2H and varve-thickness climate proxies from proglacial lake sediments, Baffin Island, Arctic Canada, Journal of Paleolimnology, 48(1), 193–207, doi:10.1007/s10933-012-9584-7, 2012.
data url: https://www.ncdc.noaa.gov/cdo/f
doi: 10.1007/s10933-012-9584-7
year: 2012

longitude: -70.086
latitude: 70.459
elevation: 68
geometry type: Point
site name: Ayr Lake