NA; paleoData_isPrimary has been standardized; paleoData_datum has been standardized
principal component #1 of d18O and d13C and Sr/Ca; positive values are drier conditions
""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized
"Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"
"However, the significantly positive correlation between thed18O andd13C of F11 suggests precipitation as the primary control-ling factor"; paleoData_datum has been standardized
""However, the significantly positive correlation between thed18O andd13C of F11 suggests precipitation as the primary control-ling factor...decreased winter/spring precipitation will enrich δ18O values in a speleothem.""
"herefore, The F11 stalagmited13C couldbe viewed as reflecting local effective precipitation orprecipitation-evaporation condition, with higherd13C value reflectlower precipitation-evaporation condition (mainly in winter/spring time), andvice versa"; paleoData_datum has been standardized; paleoData_proxyGeneral has been standardized
"Prior calcite precipitation dur-ing dry conditions could also lead to higher Sr/Ca ratio in the spe-leothem due to preferential removal of Ca in seepage water[31],although lower growth rates caused by insufficient seepage waterduring dry conditions might reduce the Sr/Ca ratio at the sametime"
d18O (WEBa6853b5b): interpretation1_seasonalityGeneral: '((( ((( WinterOnly ))) winterOnly /// null ))) WinterOnly /// winterOnly' has been replaced by 'winterOnly'
PC1 (WEBcbb13563): paleoData_proxy: '((( PCA ))) deleteMe /// null' has been replaced by 'multiproxy'
Sr/Ca (WEBfc273ca6): paleoData_proxy: '((( TraceElement ))) deleteMe /// null' has been replaced by 'Sr/Ca'
d18O (WEBa6853b5b): interpretation1_seasonalityGeneral: 'winterOnly' has been replaced by '((( ((( WinterOnly ))) winterOnly /// null ))) WinterOnly /// winterOnly'
PC1 (WEBcbb13563): paleoData_proxy: '' has been replaced by '((( PCA ))) deleteMe /// null'
Sr/Ca (WEBfc273ca6): paleoData_proxy: '' has been replaced by '((( TraceElement ))) deleteMe /// null'
d18O (WEBa6853b5b): interpretation1_seasonalityGeneral: '((( WinterOnly ))) winterOnly /// null' has been replaced by 'winterOnly'
PC1 (WEBcbb13563): paleoData_notes: '((( ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_variableName updated; paleoData_inferredMaterial has been standardized; paleoData_proxy updated ))) ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized /// ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized' has been replaced by '""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized'
PC1 (WEBcbb13563): paleoData_notes: '""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized' has been replaced by '((( ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_variableName updated; paleoData_inferredMaterial has been standardized; paleoData_proxy updated ))) ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized /// ""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized'
Updated lipdverse database entry with a changed file.
geo_elevation: '' has been replaced by '1516'
age (WEB0b6a807a): paleoData_datum: '' has been replaced by '1950'
age (WEB0b6a807a): paleoData_notes: '' has been replaced by 'NA; paleoData_isPrimary has been standardized; paleoData_datum has been standardized'
age (WEB0b6a807a): paleoData_units: 'BP' has been replaced by 'yr BP'
age (WEB0b6a807a): paleoData_isPrimary: '' has been replaced by 'TRUE'
age (WEB4495bba7): paleoData_datum: '' has been replaced by '1950'
age (WEB4495bba7): paleoData_notes: '' has been replaced by 'NA; paleoData_isPrimary has been standardized; paleoData_datum has been standardized'
age (WEB4495bba7): paleoData_units: 'BP' has been replaced by 'yr BP'
age (WEB4495bba7): paleoData_isPrimary: '' has been replaced by 'TRUE'
d13C (WEB9423a3ce): paleoData_datum: '' has been replaced by 'VPDB'
d13C (WEB9423a3ce): paleoData_notes: '"herefore, The F11 stalagmited13C couldbe viewed as reflecting local effective precipitation orprecipitation-evaporation condition, with higherd13C value reflectlower precipitation-evaporation condition (mainly in winter/spring time), andvice versa"' has been replaced by '"herefore, The F11 stalagmited13C couldbe viewed as reflecting local effective precipitation orprecipitation-evaporation condition, with higherd13C value reflectlower precipitation-evaporation condition (mainly in winter/spring time), andvice versa"; paleoData_datum has been standardized; paleoData_proxyGeneral has been standardized'
d13C (WEB9423a3ce): paleoData_proxyGeneral: '' has been replaced by 'isotopic'
d13C (WEB9423a3ce): paleoData_units: 'permil (VPDB)' has been replaced by 'permil'
d18O (WEBa6853b5b): paleoData_datum: '' has been replaced by 'VPDB'
d18O (WEBa6853b5b): paleoData_notes: '"However, the significantly positive correlation between thed18O andd13C of F11 suggests precipitation as the primary control-ling factor"' has been replaced by '"However, the significantly positive correlation between thed18O andd13C of F11 suggests precipitation as the primary control-ling factor"; paleoData_datum has been standardized'
d18O (WEBa6853b5b): paleoData_units: 'permil (VPDB)' has been replaced by 'permil'
age (WEBbed385aa): paleoData_datum: '' has been replaced by '1950'
age (WEBbed385aa): paleoData_notes: '' has been replaced by 'NA; paleoData_isPrimary has been standardized; paleoData_datum has been standardized'
age (WEBbed385aa): paleoData_units: 'BP' has been replaced by 'yr BP'
age (WEBbed385aa): paleoData_isPrimary: '' has been replaced by 'TRUE'
PC1 (WEBcbb13563): paleoData_notes: '""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"' has been replaced by '""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"; paleoData_inferredMaterial has been standardized'
PC1 (WEBcbb13563): paleoData_proxy: 'PCA' has been replaced by ''
PC1 (WEBcbb13563): paleoData_variableName: 'droughtIndex (PC1)' has been replaced by 'PC1'
PC1 (WEBcbb13563): paleoData_inferredMaterial: '' has been replaced by 'drought PC1'
growthRate (WEBeb20435e): paleoData_units: 'mm/a' has been replaced by 'mm/yr'
growthRate (WEBeb20435e): paleoData_variableName: 'GrowthRate' has been replaced by 'growthRate'
Sr/Ca (WEBfc273ca6): paleoData_proxy: 'TraceElement' has been replaced by ''
Sr/Ca (WEBfc273ca6): paleoData_units: '1000*counts/counts' has been replaced by 'permil'
d18O (WEBa6853b5b): interpretation1_seasonality: 'Winter (11,12,1,2,3,4,5)' has been replaced by 'Nov-May'
d18O (WEBa6853b5b): interpretation1_variable: 'P' has been replaced by 'precipitation'
PC1 (WEBcbb13563): interpretation1_seasonality: '11,12,1,2,3,4,5' has been replaced by 'Nov-May'
PC1 (WEBcbb13563): interpretation1_variable: 'P' has been replaced by 'precipitation'
geo_elevation: '1516' has been replaced by ''
d13C (WEB9423a3ce): interpretation1_scope: '' has been replaced by 'climate'
GrowthRate (WEBeb20435e): interpretation1_scope: '' has been replaced by 'climate'
Sr/Ca (WEBfc273ca6): interpretation1_scope: '' has been replaced by 'climate'
age (WEB0b6a807a): paleoData_units: 'yr BP' has been replaced by 'BP'
age (WEB0b6a807a): paleoData_unitsOriginal: '' has been replaced by 'yr BP'
age (WEB4495bba7): paleoData_units: 'yr BP' has been replaced by 'BP'
age (WEB4495bba7): paleoData_unitsOriginal: '' has been replaced by 'yr BP'
d13C (WEB9423a3ce): paleoData_proxyLumps: '' has been replaced by 'isotope'
d13C (WEB9423a3ce): paleoData_proxyLumpsOriginal: '' has been replaced by 'd13C'
d18O (WEBa6853b5b): paleoData_proxyLumps: '' has been replaced by 'isotope'
d18O (WEBa6853b5b): paleoData_proxyLumpsOriginal: '' has been replaced by 'd18O'
age (WEBbed385aa): paleoData_units: 'yr BP' has been replaced by 'BP'
age (WEBbed385aa): paleoData_unitsOriginal: '' has been replaced by 'yr BP'
droughtIndex (PC1) (WEBcbb13563): paleoData_proxyLumps: '' has been replaced by 'PCA'
Sr/Ca (WEBfc273ca6): paleoData_proxyLumps: '' has been replaced by 'TraceElement'
d13C (WEB9423a3ce): interpretation1_scope: 'climate' has been replaced by ''
d18O (WEBa6853b5b): interpretation1_variableGroup: '' has been replaced by 'P'
droughtIndex (PC1) (WEBcbb13563): interpretation1_variableGroup: '' has been replaced by 'P'
GrowthRate (WEBeb20435e): interpretation1_scope: 'climate' has been replaced by ''
Sr/Ca (WEBfc273ca6): interpretation1_scope: 'climate' has been replaced by ''
droughtIndex (PC1) (WEBcbb13563): interpretation1_seasonality: '@surface' has been replaced by '11,12,1,2,3,4,5'
droughtIndex (PC1) (WEBcbb13563): interpretation1_seasonalityGeneral: '((( WinterOnly ))) winterOnly /// null' has been replaced by 'winterOnly'
droughtIndex (PC1) (WEBcbb13563): interpretation1_variableDetail: 'Winter (11,12,1,2,3,4,5)' has been replaced by '@surface'
originalDataUrl: '' has been replaced by 'https://doi.org/10.1016/j.scib.2020.10.011'
geo_gcmdLocation: '' has been replaced by 'Asia>Southcentral Asia>Kyrgyzstan'
d18O (WEBa6853b5b): paleoData_proxyGeneral: '' has been replaced by 'isotope'
d18O (WEBa6853b5b): paleoData_QCnotes: '' has been replaced by 'default to hybrid "drought index"'
droughtIndex (PC1) (WEBcbb13563): paleoData_notes: '' has been replaced by '""Significant positive correlations betweend13C,d18O, and Sr/Casuggest local precipitation exerts a common control on all. As aresult, we applied principal components analysis (PCA) to the threeproxy records (Table S3online). PC1, which explains 62% of thetotal variance, was then used as a drought index for this region,with higher values representing less precipitation, and lower val-ues representing more precipitation. Considering high evaporationand low precipitation in summer and autumn, we infer that ourrecord largely reflects changes in winter/spring precipitation"'
droughtIndex (PC1) (WEBcbb13563): paleoData_proxy: 'PCA1' has been replaced by 'PCA'
droughtIndex (PC1) (WEBcbb13563): paleoData_units: 'PCA1' has been replaced by 'unitless'
droughtIndex (PC1) (WEBcbb13563): paleoData_variableName: 'droughtIndex' has been replaced by 'droughtIndex (PC1)'
droughtIndex (PC1) (WEBcbb13563): paleoData_datum: '' has been replaced by 'anom'
droughtIndex (PC1) (WEBcbb13563): paleoData_proxyDetail: '' has been replaced by 'PCA'
droughtIndex (PC1) (WEBcbb13563): paleoData_proxyGeneral: '' has been replaced by 'hybrid'
d18O (WEBa6853b5b): interpretation1_seasonalityGeneral: '' has been replaced by '((( WinterOnly ))) winterOnly /// null'
droughtIndex (PC1) (WEBcbb13563): interpretation1_seasonalityGeneral: '' has been replaced by '((( WinterOnly ))) winterOnly /// null'
pub1_author: 'list(list(name = "Tan, Liangcheng"), list(name = "Dong, Guanghui"), list(name = "An, Zhisheng"), list(name = "Lawrence Edwards, R."), list(name = "Li, Haiming"), list(name = "Li, Dong"), list(name = "Spengler, Robert"), list(name = "Cai, Yanjun"), list(name = "Cheng, Hai"), list(name = "Lan, Jianghu"), list(name = "Orozbaev, Rustam"), list(name = "Liu, Ruiliang"), list(name = "Chen, Jianhui"), list(name = "Xu, Hai"), list(name = "Chen, Fahu"))' has been replaced by 'Tan, Liangcheng'
Megadrought and cultural exchange along the proto-silk road