paleo data:
  measurement table:
    google work sheet key: osvv9m
    table name: paleo1measurement1
    missing value: NaN
    d18 o:
      chronology integration time: 1
      chronology integration time basis: age model based on volcanic horizons and counting of annual layers (seasonal variations of stable isotopes)
      chronology integration time uncertainty: 1 to 10
      chronology integration time uncertainty type: chronology
      chronology integration time units: years
      description: glacier ice
      has chron: 0
      has max value: -29.7201
      has mean value: -36.406
      has median value: -36.5746
      has min value: -43.5618
      has paleo depth: 0
      in compilation: PAGES Antarctica2k site id (5.19)
      inferred material: precipitation
      inferred material group: precipitation
      instrument: NaN
      iso2k certification: AO (01/16/2019)
      iso2k primary timeseries: TRUE
      iso2k UI: IC13ST2201A
      long name: AD
      measurement material: glacier ice
      measurement standard: VSMOW
      measurement table name: measurementTable1
      median res12k: NA
      notes: ; archiveType changed - was originally Ice core (IC)
      paleo data table name: pt1_1
      QC certification: AO
      t sid: IC13ST2201A
      uncertainty analytical: NaN
      uncertainty reproducibility: NaN
      units: permil
      variable name: d18O
      variable type: measured
      is primary: false
      primary age column: false
      has time tsid: MAT9630e0411f
      values: -33.3644
      values: -34.5364
      values: -35.0507
      values: -35.1147
      values: -35.0068
      values: -34.369
      values: -33.8484
      values: -34.4728
      values: -34.5528
      values: NaN
      values: -34.6577
      values: -36.7471
      values: -37.8994
      values: -37.7246
      values: -37.1706
      values: -36.8366
      values: -36.7863
      values: -36.9934
      values: -37.0756
      values: -36.9024
      values: -36.4527
      values: -35.5848
      values: -34.1327
      values: -33.9506
      values: -34.1283
      values: -33.8779
      values: -33.6706
      values: -33.7503
      values: -34.4961
      values: -35.6132
      values: -37.553
      values: -38.2359
      values: -38.7932
      values: -38.6315
      values: -37.9043
      values: -37.2433
      values: -36.8943
      values: -36.3483
      values: -36.286
      values: -37.177
      values: -39.5327
      values: -41.7951
      values: -42.1203
      values: -41.0104
    year:
      data type: float
      description: Year AD
      has max value: 2001.9245
      has mean value: 1948.3486
      has median value: 1947.7025
      has min value: 1894.1945
      inferred variable type: year
      iso2k primary timeseries: FALSE
      long name: AD
      measurement table name: measurementTable1
      median res12k: NA
      paleo data table name: pt1_1
      t sid: MAT9630e0411f
      units: yr AD
      units original: CE
      variable name: year
      variable type: inferred
      is primary: true
      primary age column: true
      has time tsid: MAT9630e0411f
      values: 2001.9245
      values: 2001.8352
      values: 2001.8033
      values: 2001.7677
      values: 2001.7371
      values: 2001.7066
      values: 2001.6708
      values: 2001.6398
      values: 2001.6093
      values: 2001.5751
      values: 2001.5446
      values: 2001.513
      values: 2001.4772
      values: 2001.4467
      values: 2001.4162
      values: 2001.3804
      values: 2001.3492
      values: 2001.3187
      values: 2001.2845
      values: 2001.2539
      values: 2001.2225
      values: 2001.1868
      values: 2001.1562
      values: 2001.1257
      values: 2001.09
      values: 2001.0586
      values: 2001.0281
      values: 2000.9939
      values: 2000.9633
      values: 2000.9314
      values: 2000.8975
      values: 2000.8655
      values: 2000.8302
      values: 2000.7959
      values: 2000.7639
      values: 2000.729
      values: 2000.697
      values: 2000.665
      values: 2000.6278
      values: 2000.5958
      values: 2000.5638
      values: 2000.5287
      values: 2000.4968
      values: 2000.4555
      values: 2000.4027
      values: 2000.3413
      values: 2000.2781
      values: 2000.2218
      values: 2000.1679
      values: 2000.1133
      values: 2000.0564
      values: 1999.9934
      values: 1999.9327
      values: 1999.8792
      values: 1999.8238
      values: 1999.761
      values: 1999.6988
      values: 1999.6487
      values: 1999.5995
      values: 1999.5457
chron data:
  model:
    methods:
      algorithm: BAM
      parameters:
        n ens: 1000
        resize: 0
archive type: GlacierIce
archive type original: glacier ice
created by: matlab
dataset id: 4MMoOO8VeYC2ICO1sjzw
data set name: IC13ST22
dataset version: 1.0.9
google metadata worksheet: o8v21qe
has chron: 0
has depth: 0
has paleo depth: 0
lipdverse link: https://lipdverse.org/data/4MMoOO8VeYC2ICO1sjzw/1_0_10
max year: 2001.9245
min year: 1894.1945
modern system description: Precipitation weighted signal subject to post-depositional processes
modern system instrumental dataset coordinates: Antarctica (S 83.5008, E -104.9868, 1957 m.a.s.l)
modern system instrumental dataset URL: PAGES 2k temp database
n unique ages: 0
original data url: https://www.ncdc.noaa.gov/paleo/study/22519
lipd version: 1.3
changelog:
  version: 1.0.10
  last version: 1.0.9
  curator: nicholas
  timestamp: 2025-05-22 04:33:45.649543 UTC
  changes:
    chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

basis: correlation to reanalysis data
direction: positive
interp direction: positive
scope: climate
seasonality: Annual
seasonality original: Annual
variable: temperature
variable detail: air@surface
variable detail original: air
variable group: Temperature
variable group direction: negative
variable group original: T
variable original: temperature

scope: climate

scope: climate

basis: Steig et al. 2013 suppl: Scaling between I´18O and temperature in West Antarctica can be estimated in a number of ways, all yielding similar results. The local interannual scaling between WAIS Divide I´18O and Byrd temperature is 0.5a€°/A°C; the ratio of 50-year trends also yields 0.5a€°/A°C (1957-2006, Byrd temperature trend7 = 0.48A°C/decade; WAIS Divide I´18O trend = 0.24a€°/decade). Regional interannual scaling between the composite I´18O series in Figure 1 and the West-Antarctic average temperature from Steig et al.4 is also 0.5a€°/A°C; the ratio of 50-year trends is 0.6a€°/A°C (1957-2006, West Antarctic temperature trend = 0.19A°C/decade4; composite I´18O trend = 0.12a€°/decade). Comparison betweenI´18O and the borehole temperature reconstruction from WAIS Divide6 over the last 2000 years also results in similar scaling. See also Kuttel et al, 2012 for more interpretation
direction: positive
inferred material: precipitation
integration time: 1
integration time basis: age model based on volcanic horizons and counting of annual layers (seasonal variations of stable isotopes)
integration time uncertainty: 1 to 10
integration time uncertainty type: chronology
integration time units: years
mathematical relation: linear
rank: 1
scope: isotope
seasonality: Annual
seasonality original: Annual
variable: precipitationIsotope
variable group: P_isotope
variable group direction: positive
coefficient: NA
fraction: NA

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

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

has max value: 0.3046
has mean value: 0.0461
has median value: 0.0434
has min value: 0.0214
units: AD

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

rank: NA
scope: climate

rank: NA
scope: climate

rank: NA
scope: climate

has max value: 0.3046
has mean value: 0.0461
has median value: 0.0434
has min value: 0.0214
units: AD

version: 1.0.9
last version: 1.0.8
curator: nicholas
timestamp: 2025-05-22 00:39:25.117867 UTC
notes: Updated lipdverse database entry with a changed file.
changes:
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.8
last version: 1.0.7
curator: nicholas
timestamp: 2025-05-20 18:27:48.172723 UTC
changes:
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.7
last version: 1.0.6
curator: nicholas
timestamp: 2025-05-20 16:18:46.610536 UTC
changes:
  paleo interpretation metadata: year (MAT9630e0411f): interpretation3_scope: '' has been replaced by 'climate'
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.6
last version: 1.0.5
curator: nicholas
timestamp: 2025-04-17 20:04:19.024551 UTC
changes:
  paleo column metadata: d18O (IC13ST2201A): paleoData_isPrimary: '' has been replaced by 'FALSE'
  paleo column metadata: d18O (IC13ST2201A): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
  paleo column metadata: year (MAT9630e0411f): paleoData_isPrimary: '' has been replaced by 'TRUE'
  paleo column metadata: year (MAT9630e0411f): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.5
last version: 1.0.4
curator: nicholas
timestamp: 2025-04-11 16:24:26.997116 UTC
changes:
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_basis: 'Steig et al. 2013 suppl: Scaling between I´18O and temperature in West Antarctica can be estimated in a number of ways, all yielding similar results. The local interannual scaling between WAIS Divide I´18O and Byrd temperature is 0.5a€°/A°C; the ratio of 50-year trends also yields 0.5a€°/A°C (1957-2006, Byrd temperature trend7 = 0.48A°C/decade; WAIS Divide I´18O trend = 0.24a€°/decade). Regional interannual scaling between the composite I´18O series in Figure 1 and the West-Antarctic average temperature from Steig et al.4 is also 0.5a€°/A°C; the ratio of 50-year trends is 0.6a€°/A°C (1957-2006, West Antarctic temperature trend = 0.19A°C/decade4; composite I´18O trend = 0.12a€°/decade). Comparison betweenI´18O and the borehole temperature reconstruction from WAIS Divide6 over the last 2000 years also results in similar scaling. See also Kuttel et al, 2012 for more interpretation' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_direction: 'positive' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_inferredMaterial: 'precipitation' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_integrationTime: '1' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_integrationTimeBasis: 'age model based on volcanic horizons and counting of annual layers (seasonal variations of stable isotopes)' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_integrationTimeUncertainty: '1 to 10' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_integrationTimeUncertaintyType: 'chronology' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_integrationTimeUnits: 'years' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_mathematicalRelation: 'linear' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_rank: '1' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_scope: 'isotope' has been replaced by 'climate'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_seasonality: 'Annual' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_seasonalityOriginal: 'Annual' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_variable: 'precipitationIsotope' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_variableGroup: 'P_isotope' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_variableGroupDirection: 'positive' has been replaced by ''
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation3_scope: '' has been replaced by 'climate'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_basis: '' has been replaced by 'Steig et al. 2013 suppl: Scaling between I´18O and temperature in West Antarctica can be estimated in a number of ways, all yielding similar results. The local interannual scaling between WAIS Divide I´18O and Byrd temperature is 0.5a€°/A°C; the ratio of 50-year trends also yields 0.5a€°/A°C (1957-2006, Byrd temperature trend7 = 0.48A°C/decade; WAIS Divide I´18O trend = 0.24a€°/decade). Regional interannual scaling between the composite I´18O series in Figure 1 and the West-Antarctic average temperature from Steig et al.4 is also 0.5a€°/A°C; the ratio of 50-year trends is 0.6a€°/A°C (1957-2006, West Antarctic temperature trend = 0.19A°C/decade4; composite I´18O trend = 0.12a€°/decade). Comparison betweenI´18O and the borehole temperature reconstruction from WAIS Divide6 over the last 2000 years also results in similar scaling. See also Kuttel et al, 2012 for more interpretation'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_direction: '' has been replaced by 'positive'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_inferredMaterial: '' has been replaced by 'precipitation'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_integrationTime: '' has been replaced by '1'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_integrationTimeBasis: '' has been replaced by 'age model based on volcanic horizons and counting of annual layers (seasonal variations of stable isotopes)'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_integrationTimeUncertainty: '' has been replaced by '1 to 10'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_integrationTimeUncertaintyType: '' has been replaced by 'chronology'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_integrationTimeUnits: '' has been replaced by 'years'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_mathematicalRelation: '' has been replaced by 'linear'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_rank: '' has been replaced by '1'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_seasonality: '' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_seasonalityOriginal: '' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_variable: '' has been replaced by 'precipitationIsotope'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_variableGroup: '' has been replaced by 'P_isotope'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation4_variableGroupDirection: '' has been replaced by 'positive'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation5_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation6_scope: '' has been replaced by 'isotope'
  paleo interpretation metadata: year (MAT9630e0411f): interpretation1_scope: '' has been replaced by 'climate'
  paleo interpretation metadata: year (MAT9630e0411f): interpretation2_scope: '' has been replaced by 'climate'
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.4
last version: 1.0.3
curator: nicholas
timestamp: 2025-04-09 21:14:20.201929 UTC
notes: Updated lipdverse database entry with a changed file.
changes:
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation1_seasonality: 'annual' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_seasonality: 'annual' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.3
last version: 1.0.2
curator: nicholas
timestamp: 2025-04-09 17:50:50.924927 UTC
notes: Changes made as part of LiPDverse vocabulary standardization process
changes:
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation1_seasonality: 'annual' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation1_variable: 'T' has been replaced by 'temperature'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_seasonality: 'annual' has been replaced by 'Annual'
  paleo interpretation metadata: d18O (IC13ST2201A): interpretation2_variable: 'P_isotope' has been replaced by 'precipitationIsotope'
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.2
last version: 1.0.1
curator: nicholas
timestamp: 2025-04-08 18:55:27.084808 UTC
notes: Updated lipdverse database entry with a changed file.
changes:
  chron data table: Column 'IC13ST22-chron-NA1', with variable name 'yearEnsemble', was added to the dataset

version: 1.0.1
last version: 1.0.0
curator: nicholas
timestamp: 2025-04-08 17:32:46.488282 UTC
notes: Changes made as part of LiPDverse vocabulary standardization process
changes:
  paleo column metadata: d18O (IC13ST2201A): paleoData_longName: '' has been replaced by 'AD'
  paleo column metadata: year (MAT9630e0411f): paleoData_units: 'AD' has been replaced by 'yr AD'
  paleo column metadata: year (MAT9630e0411f): paleoData_longName: '' has been replaced by 'AD'

author:
  name: Steig
citation: Steig, E. J., Ding, Q., White, J. W. C., Kuettel, M., Rupper, S. B., Neumann, T. A., Neff, P. D., Gallant, A. J. E., Mayewski, P. A., Taylor, K. C., Hoffmann, G., Dixon, D. A., Schoenemann, S. W., Markle, B. R., Fudge, T. J., Schneider, D. P., Schauer, A. J., Teel, R. P., Vaughn, B. H., Burgener, L., Williams, J. and Korotkikh, E.: Recent climate and ice-sheet changes in West Antarctica compared with the past 2,000 years, Nature Geoscience, 6(5), 372–375, doi:10.1038/ngeo1778, 2013.
doi: 10.1038/ngeo1778
year: 2013

longitude: -104.99
latitude: -83.5
elevation: 1957
geometry type: Point
site name: US-ITASE-2002-2