Version history for 7D3XV1ftG6ZQK7aGreiK - IC13ST21
Version: 1.0.7
- lastVersion: 1.0.6
- curator: nicholas
- timestamp: 2025-05-20 16:18:46.561132 UTC
- changes:
- Paleo Interpretation metadata:
- year (MATa796428877): interpretation3_scope: NULL has been replaced
by ‘climate’
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.6
- lastVersion: 1.0.5
- curator: nicholas
- timestamp: 2025-04-17 20:04:18.975283 UTC
- changes:
- Paleo Column metadata:
- d18O (IC13ST2101A): paleoData_isPrimary: NULL has been replaced by
‘FALSE’
- d18O (IC13ST2101A): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
- year (MATa796428877): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MATa796428877): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.5
- lastVersion: 1.0.4
- curator: nicholas
- timestamp: 2025-04-11 16:23:58.995362 UTC
- changes:
- Paleo Interpretation metadata:
- d18O (IC13ST2101A): 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also Kuttel et al, 2012 for more interpretation’ has been replaced by
NULL
- d18O (IC13ST2101A): interpretation2_direction: ‘positive’ has been
replaced by NULL
- d18O (IC13ST2101A): interpretation2_inferredMaterial:
‘precipitation’ has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_integrationTime: ‘1’ has been
replaced by NULL
- d18O (IC13ST2101A): interpretation2_integrationTimeBasis: ‘age model
based on volcanic horizons and counting of annual layers (seasonal
variations of stable isotopes)’ has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_integrationTimeUncertainty: ‘1
to 10’ has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_integrationTimeUncertaintyType:
‘chronology’ has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_integrationTimeUnits: ‘years’
has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_rank: ‘1’ has been replaced by
NULL
- d18O (IC13ST2101A): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (IC13ST2101A): interpretation2_seasonality: ‘Annual’ has been
replaced by NULL
- d18O (IC13ST2101A): interpretation2_seasonalityOriginal: ‘Annual’
has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_variable: ‘precipitationIsotope’
has been replaced by NULL
- d18O (IC13ST2101A): interpretation2_variableGroup: ‘P_isotope’ has
been replaced by NULL
- d18O (IC13ST2101A): interpretation2_variableGroupDirection:
‘positive’ has been replaced by NULL
- d18O (IC13ST2101A): interpretation3_scope: NULL has been replaced by
‘climate’
- d18O (IC13ST2101A): interpretation4_basis: NULL 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’
- d18O (IC13ST2101A): interpretation4_direction: NULL has been
replaced by ‘positive’
- d18O (IC13ST2101A): interpretation4_inferredMaterial: NULL has been
replaced by ‘precipitation’
- d18O (IC13ST2101A): interpretation4_integrationTime: NULL has been
replaced by ‘1’
- d18O (IC13ST2101A): interpretation4_integrationTimeBasis: NULL has
been replaced by ‘age model based on volcanic horizons and counting of
annual layers (seasonal variations of stable isotopes)’
- d18O (IC13ST2101A): interpretation4_integrationTimeUncertainty: NULL
has been replaced by ‘1 to 10’
- d18O (IC13ST2101A): interpretation4_integrationTimeUncertaintyType:
NULL has been replaced by ‘chronology’
- d18O (IC13ST2101A): interpretation4_integrationTimeUnits: NULL has
been replaced by ‘years’
- d18O (IC13ST2101A): interpretation4_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (IC13ST2101A): interpretation4_rank: NULL has been replaced by
‘1’
- d18O (IC13ST2101A): interpretation4_scope: NULL has been replaced by
‘isotope’
- d18O (IC13ST2101A): interpretation4_seasonality: NULL has been
replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation4_seasonalityOriginal: NULL has
been replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation4_variable: NULL has been replaced
by ‘precipitationIsotope’
- d18O (IC13ST2101A): interpretation4_variableGroup: NULL has been
replaced by ‘P_isotope’
- d18O (IC13ST2101A): interpretation4_variableGroupDirection: NULL has
been replaced by ‘positive’
- d18O (IC13ST2101A): interpretation5_scope: NULL has been replaced by
‘isotope’
- d18O (IC13ST2101A): interpretation6_scope: NULL has been replaced by
‘isotope’
- year (MATa796428877): interpretation1_scope: NULL has been replaced
by ‘climate’
- year (MATa796428877): interpretation2_scope: NULL has been replaced
by ‘climate’
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.4
- lastVersion: 1.0.3
- curator: nicholas
- timestamp: 2025-04-09 21:12:44.59077 UTC
- notes: Updated lipdverse database entry with a changed
file.
- changes:
- Paleo Interpretation metadata:
- d18O (IC13ST2101A): interpretation1_seasonality: ‘annual’ has been
replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation1_variable: ‘T’ has been replaced
by ‘temperature’
- d18O (IC13ST2101A): interpretation2_seasonality: ‘annual’ has been
replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation2_variable: ‘P_isotope’ has been
replaced by ‘precipitationIsotope’
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.3
- lastVersion: 1.0.2
- curator: nicholas
- timestamp: 2025-04-09 17:50:22.223839 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Interpretation metadata:
- d18O (IC13ST2101A): interpretation1_seasonality: ‘annual’ has been
replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation1_variable: ‘T’ has been replaced
by ‘temperature’
- d18O (IC13ST2101A): interpretation2_seasonality: ‘annual’ has been
replaced by ‘Annual’
- d18O (IC13ST2101A): interpretation2_variable: ‘P_isotope’ has been
replaced by ‘precipitationIsotope’
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.2
- lastVersion: 1.0.1
- curator: nicholas
- timestamp: 2025-04-08 18:53:53.390203 UTC
- notes: Updated lipdverse database entry with a changed
file.
- changes:
- ChronData table:
- Column ‘IC13ST21-chron-NA1’, with variable name ‘yearEnsemble’, was
added to the dataset
Version: 1.0.1
- lastVersion: 1.0.0
- curator: nicholas
- timestamp: 2025-04-08 17:32:46.407793 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Column metadata:
- d18O (IC13ST2101A): paleoData_longName: NULL has been replaced by
‘AD’
- year (MATa796428877): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MATa796428877): paleoData_longName: NULL has been replaced by
‘AD’