Version history for 6iQeJsjOAoS8QW2JSoeT - CO12GOVA
Version: 1.0.5
- lastVersion: 1.0.4
- curator: nicholas
- timestamp: 2025-04-17 20:03:59.397587 UTC
- changes:
- Paleo Column metadata:
- year (MAT0c27f07718): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MAT0c27f07718): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- d18O (Ocean2kHR_154): paleoData_isPrimary: NULL has been replaced by
‘FALSE’
- d18O (Ocean2kHR_154): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
- d13C (Ocean2kHR_155): paleoData_isPrimary: NULL has been replaced by
‘FALSE’
- d13C (Ocean2kHR_155): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
Version: 1.0.4
- lastVersion: 1.0.3
- curator: nicholas
- timestamp: 2025-04-11 16:13:38.31131 UTC
- changes:
- Paleo Interpretation metadata:
- year (MAT0c27f07718): interpretation1_scope: NULL has been replaced
by ‘climate’
- year (MAT0c27f07718): interpretation2_scope: NULL has been replaced
by ‘climate’
- d18O (Ocean2kHR_154): interpretation2_basis: ‘We develop and test a
transfer function constructed using linear regression analysis of SBV
coral d18Oanomaly variations and instrumental SSS over the period
1970?2007 CE [Thirumalai et al., 2011]. We performed a
calibration-verification exercise (Figure 6) between d18Oanomaly and SSS
at SBV to assess the robustness of the transfer function [Quinn and
Sampson, 2002]. The slopes in equations (1)?(3) are within error of each
other; however, the intercepts are slightly different. Despite this
small difference, the similarity of the lines (Figure S2) provides
confidence that the transfer function developed in this study can be
used to reconstruct past changes in salinity at this locality based on
coral d18O variations. We also note that there is a signal in the
residuals, which likely reflects a small temperature component in the
coral d18O anomaly signal (Figure 6, bottom), most likely due to the
small changes in seasonality over this time period (Figure 4c).’ has
been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_coefficient: ‘1.973’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_direction: ‘positive’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_integrationTime: ‘1’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_integrationTimeBasis:
‘Geochemical variations versus depth were converted to variations versus
time using AnalySeries software [Paillard et al., 1996]. Geochemical
variations in d18O were used to determine a first-order age model, with
the maximum intra-annual peaks in d18O being assigned as the coldest
month of the year (August), beginning with the year 2007, when the
living coral was cored. This first-order age model places d18O
variations in the time domain, with uneven time increments (Dt). A
second-order age model, with a monthly Dt, was created using the
AnalySeries software program, which was verified by comparing years with
anomalous d18O values to known ENSO events where possible. This
second-order age model is the final age model used in all plots and data
analysis.’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_integrationTimeUncertainty:
‘~1?2 months in any given year, no errors given for annual chronology’
has been replaced by NULL
- d18O (Ocean2kHR_154):
interpretation2_integrationTimeUncertaintyType: ‘chronological’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_integrationTimeUnits: ‘month’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_rank: ‘1’ has been replaced by
NULL
- d18O (Ocean2kHR_154): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_154): interpretation2_seasonality: ‘subannual’ has
been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_variable: ‘seawaterIsotope’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_variableGroup:
‘EffectiveMoisture’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation2_variableGroupOriginal:
‘d18O_seawater’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_basis: ‘We found that the
correlations with d18O are 0.72 (with total pseudocoral), 0.47 (with SST
component), and 0.68 (with SSS component), p < 0.01 for all three
(Figure S1), indicating that SSS changes represent a larger fraction of
the variance in the coral d18Oanomaly signal than SST changes, as
expected from the larger magnitude of interannual SSS variations at this
site. Testing several different percent contributions of SSS and SST to
create the pseudocoral, we determined that a combination of 35% SST and
65% SSS results in the closest representation to the observed coral
d18Oanomaly values. This was calculated by creating a pseudocoral that
consisted of percent SST/SSS contributions that ranged from 100/0% to
0/100%, in increments of 5% (i.e., 100/0, 95/5, 90/10a€¦ 5/95, 0/100).
The pseudocoral consisting of 35/65% gave the highest correlation with
the measured d18O time series, which provides the percent contributions
of SST and SSS to the time series. This relationship was determined over
the period 1970a€“2007, and is limited by the length of the instrumental
SSS data set. We assume stationarity in the proportional contributions
of SST and SSS to the coral d18O signal because SSS data needed to
evaluate this assumption are lacking in the pre- 1970 period. However,
the assumption of stationarity of a proxy-instrumental relationship
developed over the instrumental time period affects all proxy-based
climate reconstructions that extend beyond the instrumental period.
Thus, lacking additional instrument data and/or another independent SST-
or SSS-only proxy there is no easy way to reduce the uncertainty of the
empirically derived proxy relationship over the calibration-verification
interval.’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_direction: ‘negative’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_fraction: ‘0.22’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_integrationTime: ‘1’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_integrationTimeBasis:
‘Geochemical variations versus depth were converted to variations versus
time using AnalySeries software [Paillard et al., 1996]. Geochemical
variations in d18O were used to determine a first-order age model, with
the maximum intra-annual peaks in d18O being assigned as the coldest
month of the year (August), beginning with the year 2007, when the
living coral was cored. This first-order age model places d18O
variations in the time domain, with uneven time increments (Dt). A
second-order age model, with a monthly Dt, was created using the
AnalySeries software program, which was verified by comparing years with
anomalous d18O values to known ENSO events where possible. This
second-order age model is the final age model used in all plots and data
analysis.’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_integrationTimeUncertainty:
‘~1?2 months in any given year, no errors given for annual chronology’
has been replaced by NULL
- d18O (Ocean2kHR_154):
interpretation3_integrationTimeUncertaintyType: ‘chronological’ has been
replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_integrationTimeUnits: ‘month’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_rank: ‘2’ has been replaced by
NULL
- d18O (Ocean2kHR_154): interpretation3_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_154): interpretation3_variable: ‘temperature’ has
been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_variableGroup: ‘Temperature’
has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation3_variableGroupOriginal:
‘T_water’ has been replaced by NULL
- d18O (Ocean2kHR_154): interpretation4_basis: NULL has been replaced
by ‘We develop and test a transfer function constructed using linear
regression analysis of SBV coral d18Oanomaly variations and instrumental
SSS over the period 1970?2007 CE [Thirumalai et al., 2011]. We performed
a calibration-verification exercise (Figure 6) between d18Oanomaly and
SSS at SBV to assess the robustness of the transfer function [Quinn and
Sampson, 2002]. The slopes in equations (1)?(3) are within error of each
other; however, the intercepts are slightly different. Despite this
small difference, the similarity of the lines (Figure S2) provides
confidence that the transfer function developed in this study can be
used to reconstruct past changes in salinity at this locality based on
coral d18O variations. We also note that there is a signal in the
residuals, which likely reflects a small temperature component in the
coral d18O anomaly signal (Figure 6, bottom), most likely due to the
small changes in seasonality over this time period (Figure 4c).’
- d18O (Ocean2kHR_154): interpretation4_coefficient: NULL has been
replaced by ‘1.973’
- d18O (Ocean2kHR_154): interpretation4_direction: NULL has been
replaced by ‘positive’
- d18O (Ocean2kHR_154): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_154): interpretation4_integrationTime: NULL has been
replaced by ‘1’
- d18O (Ocean2kHR_154): interpretation4_integrationTimeBasis: NULL has
been replaced by ‘Geochemical variations versus depth were converted to
variations versus time using AnalySeries software [Paillard et al.,
1996]. Geochemical variations in d18O were used to determine a
first-order age model, with the maximum intra-annual peaks in d18O being
assigned as the coldest month of the year (August), beginning with the
year 2007, when the living coral was cored. This first-order age model
places d18O variations in the time domain, with uneven time increments
(Dt). A second-order age model, with a monthly Dt, was created using the
AnalySeries software program, which was verified by comparing years with
anomalous d18O values to known ENSO events where possible. This
second-order age model is the final age model used in all plots and data
analysis.’
- d18O (Ocean2kHR_154): interpretation4_integrationTimeUncertainty:
NULL has been replaced by ‘~1?2 months in any given year, no errors
given for annual chronology’
- d18O (Ocean2kHR_154):
interpretation4_integrationTimeUncertaintyType: NULL has been replaced
by ‘chronological’
- d18O (Ocean2kHR_154): interpretation4_integrationTimeUnits: NULL has
been replaced by ‘month’
- d18O (Ocean2kHR_154): interpretation4_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_154): interpretation4_rank: NULL has been replaced
by ‘1’
- d18O (Ocean2kHR_154): interpretation4_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_154): interpretation4_seasonality: NULL has been
replaced by ‘subannual’
- d18O (Ocean2kHR_154): interpretation4_variable: NULL has been
replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_154): interpretation4_variableGroup: NULL has been
replaced by ‘EffectiveMoisture’
- d18O (Ocean2kHR_154): interpretation4_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_154): interpretation4_variableGroupOriginal: NULL
has been replaced by ‘d18O_seawater’
- d18O (Ocean2kHR_154): interpretation5_basis: NULL has been replaced
by ‘We found that the correlations with d18O are 0.72 (with total
pseudocoral), 0.47 (with SST component), and 0.68 (with SSS component),
p < 0.01 for all three (Figure S1), indicating that SSS changes
represent a larger fraction of the variance in the coral d18Oanomaly
signal than SST changes, as expected from the larger magnitude of
interannual SSS variations at this site. Testing several different
percent contributions of SSS and SST to create the pseudocoral, we
determined that a combination of 35% SST and 65% SSS results in the
closest representation to the observed coral d18Oanomaly values. This
was calculated by creating a pseudocoral that consisted of percent
SST/SSS contributions that ranged from 100/0% to 0/100%, in increments
of 5% (i.e., 100/0, 95/5, 90/10a€¦ 5/95, 0/100). The pseudocoral
consisting of 35/65% gave the highest correlation with the measured d18O
time series, which provides the percent contributions of SST and SSS to
the time series. This relationship was determined over the period
1970a€“2007, and is limited by the length of the instrumental SSS data
set. We assume stationarity in the proportional contributions of SST and
SSS to the coral d18O signal because SSS data needed to evaluate this
assumption are lacking in the pre- 1970 period. However, the assumption
of stationarity of a proxy-instrumental relationship developed over the
instrumental time period affects all proxy-based climate reconstructions
that extend beyond the instrumental period. Thus, lacking additional
instrument data and/or another independent SST- or SSS-only proxy there
is no easy way to reduce the uncertainty of the empirically derived
proxy relationship over the calibration-verification interval.’
- d18O (Ocean2kHR_154): interpretation5_direction: NULL has been
replaced by ‘negative’
- d18O (Ocean2kHR_154): interpretation5_fraction: NULL has been
replaced by ‘0.22’
- d18O (Ocean2kHR_154): interpretation5_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_154): interpretation5_integrationTime: NULL has been
replaced by ‘1’
- d18O (Ocean2kHR_154): interpretation5_integrationTimeBasis: NULL has
been replaced by ‘Geochemical variations versus depth were converted to
variations versus time using AnalySeries software [Paillard et al.,
1996]. Geochemical variations in d18O were used to determine a
first-order age model, with the maximum intra-annual peaks in d18O being
assigned as the coldest month of the year (August), beginning with the
year 2007, when the living coral was cored. This first-order age model
places d18O variations in the time domain, with uneven time increments
(Dt). A second-order age model, with a monthly Dt, was created using the
AnalySeries software program, which was verified by comparing years with
anomalous d18O values to known ENSO events where possible. This
second-order age model is the final age model used in all plots and data
analysis.’
- d18O (Ocean2kHR_154): interpretation5_integrationTimeUncertainty:
NULL has been replaced by ‘~1?2 months in any given year, no errors
given for annual chronology’
- d18O (Ocean2kHR_154):
interpretation5_integrationTimeUncertaintyType: NULL has been replaced
by ‘chronological’
- d18O (Ocean2kHR_154): interpretation5_integrationTimeUnits: NULL has
been replaced by ‘month’
- d18O (Ocean2kHR_154): interpretation5_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_154): interpretation5_rank: NULL has been replaced
by ‘2’
- d18O (Ocean2kHR_154): interpretation5_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_154): interpretation5_variable: NULL has been
replaced by ‘temperature’
- d18O (Ocean2kHR_154): interpretation5_variableGroup: NULL has been
replaced by ‘Temperature’
- d18O (Ocean2kHR_154): interpretation5_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_154): interpretation5_variableGroupOriginal: NULL
has been replaced by ‘T_water’
- d18O (Ocean2kHR_154): interpretation6_scope: NULL has been replaced
by ‘isotope’
- d13C (Ocean2kHR_155): interpretation1_inferredMaterial: ‘seawater’
has been replaced by NULL
- d13C (Ocean2kHR_155): interpretation1_scope: ‘isotope’ has been
replaced by ‘climate’
- d13C (Ocean2kHR_155): interpretation2_scope: NULL has been replaced
by ‘climate’
- d13C (Ocean2kHR_155): interpretation3_scope: NULL has been replaced
by ‘climate’
- d13C (Ocean2kHR_155): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- d13C (Ocean2kHR_155): interpretation4_scope: NULL has been replaced
by ‘isotope’
- d13C (Ocean2kHR_155): interpretation5_scope: NULL has been replaced
by ‘isotope’
- d13C (Ocean2kHR_155): interpretation6_scope: NULL has been replaced
by ‘isotope’
Version: 1.0.3
- lastVersion: 1.0.2
- curator: nicholas
- timestamp: 2025-04-09 20:55:45.703249 UTC
- notes: Updated lipdverse database entry with a changed
file.
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_154): interpretation1_seasonality: ‘not applicable
(subannually resolved)’ has been replaced by ‘subannual’
- d18O (Ocean2kHR_154): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_154): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_154): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
Version: 1.0.2
- lastVersion: 1.0.1
- curator: nicholas
- timestamp: 2025-04-09 17:37:32.64535 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_154): interpretation1_seasonality: ‘not applicable
(subannually resolved)’ has been replaced by ‘subannual’
- d18O (Ocean2kHR_154): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_154): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_154): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
Version: 1.0.1
- lastVersion: 1.0.0
- curator: nicholas
- timestamp: 2025-04-08 17:30:24.751031 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Column metadata:
- year (MAT0c27f07718): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MAT0c27f07718): paleoData_longName: NULL has been replaced by
‘AD’
- d18O (Ocean2kHR_154): paleoData_longName: NULL has been replaced by
‘AD’
- d13C (Ocean2kHR_155): paleoData_longName: NULL has been replaced by
‘AD’