CO14CABT - v1.0.5

Dataset Id: 2bMIZpJQr5xePS075xL8

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L <- lipdR::readLipd("https://lipdverse.org/data/2bMIZpJQr5xePS075xL8/1_0_5/CO14CABT.lpd")

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iso2k-1_1_2

root

archiveType: Coral

originalDataUrl: https://www.ncdc.noaa.gov/paleo/study/17289

lipdVersion: 1.3

pub
pub1

author: list(name = "Carilli, Jessica E.")

doi: 10.1002/2014PA002683

geo

latitude: 3.0731

longitude: 172.7469

elevation: -5

siteName: Butaritari Atoll, Gilbert Islands

PaleoData columns
year (yr AD)

TSid: MAT65e08c7772

variableName: year

units: yr AD

description: Year AD

interpretation
1

rank: NA

scope: climate

2

rank: NA

scope: climate

depth (cm)

TSid: MAT4739320cb9

variableName: depth

units: cm

description: depth

interpretation
1

rank: NA

scope: climate

2

rank: NA

scope: climate

d18O (permil)

TSid: CO14CABT01B

variableName: d18O

units: permil

description: inferred seawater

interpretation
1

basis: coral-based d18Osw is poorly correlated to local rainfall, and likely reflects ocean advection

direction: increase

interpDirection: increase

scope: climate

variable: salinity

variableDetail: sea surface

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: S

variableOriginal: salinity

2

rank: NA

scope: climate

3

scope: climate

4

direction: positive

inferredMaterial: seawater

integrationTime: 2

integrationTimeBasis: Sr/Ca data to monthly SST from the 2� � 2� grid square centered on 4�N, 172�E from the extended reconstructed SST version 3b (ERSSTv3b) data product [Smith et al., 2008; ttp://www.esrl.noaa.gov/psd] [?] Annual Sr/Ca maxima were tied to the coolest points in the SST record using Analyseries [Paillard et al., 1996]. The resulting spacing of Sr/Ca data remained relatively constant throughout the record, and the chronology was verified against growth band counts from the X-radiograph. After converting depth to time in Analyseries, Sr/Ca were interpolated to six equally spaced samples per year using ARAND time series analysis software [Howell, 2001], corresponding to bimonthly resolution for the length of the record.

integrationTimeUnits: months

mathematicalRelation: linear

rank: 1

scope: isotope

seasonality: subannual

variable: seawaterIsotope

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: d18O_seawater

coefficient: NA

fraction: NA

5

scope: isotope

coefficient: NA

fraction: NA

rank: NA

6

scope: isotope

coefficient: NA

fraction: NA

rank: NA

d18O (permil)

TSid: CO14CABT01B2

variableName: d18O

units: permil

description: inferred seawater

interpretation
1

basis: coral-based d18Osw is poorly correlated to local rainfall, and likely reflects ocean advection

direction: increase

interpDirection: increase

scope: climate

variable: salinity

variableDetail: sea surface

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: S

variableOriginal: salinity

2

rank: NA

scope: climate

3

scope: climate

4

direction: positive

inferredMaterial: seawater

integrationTime: 2

integrationTimeBasis: Sr/Ca data to monthly SST from the 2� � 2� grid square centered on 4�N, 172�E from the extended reconstructed SST version 3b (ERSSTv3b) data product [Smith et al., 2008; ttp://www.esrl.noaa.gov/psd] [?] Annual Sr/Ca maxima were tied to the coolest points in the SST record using Analyseries [Paillard et al., 1996]. The resulting spacing of Sr/Ca data remained relatively constant throughout the record, and the chronology was verified against growth band counts from the X-radiograph. After converting depth to time in Analyseries, Sr/Ca were interpolated to six equally spaced samples per year using ARAND time series analysis software [Howell, 2001], corresponding to bimonthly resolution for the length of the record.

integrationTimeUnits: months

mathematicalRelation: linear

rank: 1

scope: isotope

seasonality: subannual

variable: seawaterIsotope

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: d18O_seawater

coefficient: NA

fraction: NA

5

scope: isotope

coefficient: NA

fraction: NA

rank: NA

6

scope: isotope

coefficient: NA

fraction: NA

rank: NA

d18O (permil)

TSid: CO14CABT01A

variableName: d18O

units: permil

description: carbonate

interpretation
1

basis: ENSO dominates d18O on interannual timescales. On decadal and longer timescales, larger scale processes such as PDO likely influence d18O.

interpDirection: decrease/increase

scope: climate

variable: temperature

variableDetail: sea surface

variableGroup: temperature and salinity

2

scope: climate

3

scope: climate

4

basis: The full Butaritari coral Sr/Ca and d18O (Figures 3b and 3c) are well correlated with SST from the 2° x 2° grid cell centered on 4°N, 172°E in ERSSTv3b (R = 0.58 for Sr/Ca and 0.39 for d18O, p < 0.05 on detrended bimonthly data).

direction: negative

inferredMaterial: seawater

integrationTime: 2

integrationTimeBasis: Sr/Ca data to monthly SST from the 2� � 2� grid square centered on 4�N, 172�E from the extended reconstructed SST version 3b (ERSSTv3b) data product [Smith et al., 2008; ttp://www.esrl.noaa.gov/psd] [?] Annual Sr/Ca maxima were tied to the coolest points in the SST record using Analyseries [Paillard et al., 1996]. The resulting spacing of Sr/Ca data remained relatively constant throughout the record, and the chronology was verified against growth band counts from the X-radiograph. After converting depth to time in Analyseries, Sr/Ca were interpolated to six equally spaced samples per year using ARAND time series analysis software [Howell, 2001], corresponding to bimonthly resolution for the length of the record.

integrationTimeUnits: months

mathematicalRelation: linear

rank: 1

scope: isotope

seasonality: subannual

variable: temperature

variableGroup: Temperature

variableGroupDirection: negative

variableGroupOriginal: T_water

coefficient: NA

fraction: NA

5

direction: positive

inferredMaterial: seawater

integrationTime: 2

integrationTimeBasis: Sr/Ca data to monthly SST from the 2� � 2� grid square centered on 4�N, 172�E from the extended reconstructed SST version 3b (ERSSTv3b) data product [Smith et al., 2008; ttp://www.esrl.noaa.gov/psd] [?] Annual Sr/Ca maxima were tied to the coolest points in the SST record using Analyseries [Paillard et al., 1996]. The resulting spacing of Sr/Ca data remained relatively constant throughout the record, and the chronology was verified against growth band counts from the X-radiograph. After converting depth to time in Analyseries, Sr/Ca were interpolated to six equally spaced samples per year using ARAND time series analysis software [Howell, 2001], corresponding to bimonthly resolution for the length of the record.

integrationTimeUnits: months

mathematicalRelation: linear

rank: 2

scope: isotope

variable: seawaterIsotope

variableGroup: EffectiveMoisture

variableGroupDirection: negative

variableGroupOriginal: d18O_seawater

coefficient: NA

fraction: NA

6

scope: isotope

coefficient: NA

fraction: NA

rank: NA

ChronData columns
depthUTh (mm)

TSid: chron1

variableName: depthUTh

units: mm

description: mid-point depth of the sub-sample drilled for U-Th age

depthtopPb (mm)

TSid: chron20

variableName: depthtopPb

units: mm

description: Depth at the top of the sub-sample for 210Pb analysis

depthbottomPb (mm)

TSid: chron21

variableName: depthbottomPb

units: mm

description: Depth at the bottom of the sub-sample for 210Pb analysis

depthtopCs (mm)

TSid: chron24

variableName: depthtopCs

units: mm

description: Depth at the top of the sub-sample for 137Cs analysis

depthbottomCs (mm)

TSid: chron25

variableName: depthbottomCs

units: mm

description: Depth at the bottom of the sub-sample for 137Cs analysis

SampleID ()

TSid: chron2

variableName: SampleID

description: Sample ID for the U-Th age measured

weight (mg)

TSid: chron3

variableName: weight

units: mg

description: Weight of powder analyzed for U-Th age

U238 (ppb)

TSid: chron4

variableName: U238

units: ppb

description: 238U content of the sub-sample

U238_error (ppb)

TSid: chron5

variableName: U238_error

units: ppb

description: Analytical uncertainty of 238U

Th232 (ppt)

TSid: chron6

variableName: Th232

units: ppt

description: 232Th content of the sub-sample

Th232_error (ppt)

TSid: chron7

variableName: Th232_error

units: ppt

description: Analytical uncertainty of 232Th

d234U ((ratio))

TSid: chron8

variableName: d234U

units: (ratio)

description: d234U measured in the sub-sample

d234U_error ()

TSid: chron9

variableName: d234U_error

description: Analytical uncertainty of d234U

Th230_U238activity (activity)

TSid: chron10

variableName: Th230_U238activity

units: activity

description: [230Th/238U] activity measured in the sub-sample

U_Thactivity_error ()

TSid: chron11

variableName: U_Thactivity_error

description: Analytical uncertainty of 230Th-238U activity

Th230_Th232ratio (ppm)

TSid: chron12

variableName: Th230_Th232ratio

units: ppm

description: [230Th/232Th] ratio in the sub-sample

Thratio_error (ppm)

TSid: chron13

variableName: Thratio_error

units: ppm

description: Analytical uncertainty of 230Th-232Th ratio

AgeUncorrected (years ago)

TSid: chron14

variableName: AgeUncorrected

units: years ago

description: Uncorrected U-Th age of the sub-sample

AgeUncorr_error (yrs)

TSid: chron15

variableName: AgeUncorr_error

units: yrs

description: Analytical uncertainty of Uncorrected Age

age (years ago)

TSid: chron16

variableName: age

units: years ago

description: Corrected U-Th age of the sub-sample

AgeCorr_error (yrs)

TSid: chron17

variableName: AgeCorr_error

units: yrs

description: Uncertainty of Corrected Age (includes Th correction)

dU234initial ((ratio))

TSid: chron18

variableName: dU234initial

units: (ratio)

description: Calculated initial d234U in the sub-sample

dU234i_error ()

TSid: chron19

variableName: dU234i_error

description: Analytical uncertainty of calculated d234U initial

Pb210excess (dpm/g)

TSid: chron22

variableName: Pb210excess

units: dpm/g

description: Lead-210 excess measured in the sub-sample

Pb210_error (dpm/g)

TSid: chron23

variableName: Pb210_error

units: dpm/g

description: Analytical uncertainty of 210Pb excess

Cs137gamactivity (Bq/g)

TSid: chron26

variableName: Cs137gamactivity

units: Bq/g

description: Cesium-137 g-activity measured in the sub-sample

Cs137_error (Bq/g)

TSid: chron27

variableName: Cs137_error

units: Bq/g

description: Analytical uncertainty of 137Cs g-activity

bandAge (yr CE)

TSid: chron28

variableName: bandAge

units: yr CE

description: Band counted age for the U-Th sample

sampleType ()

TSid: chron29

variableName: sampleType

description: Sample description. E.g., round plug, annual density band