Please check inferred material, should this be soil or leaf water? Check isotopeInterpretation1_name - can this be changed to one of the standardized nameds?
tree-ring cellulose of Abies spectabilis
by an isotope ratio mass spectrometer (ThermoQuest Delta Plus) interfaced with a pyrolysis-type elemental analyzer (ThermoQuest TC/EA).
OCh-S:WEB3638db18 please replace to TR11SAHU00; OCh-S: Leaf water is correct
Instrumental calibration. A negative correlation between I´18O of precipitation and the amount of precipitation is observed in tropical regions including the Himalaya, which is termed as the a€˜amount effecta€™ (AraguA¡s-AraguA¡s et al., 1998; Dansgaard, 1964; Yadava and Ramesh, 2005).
Our interpretation of the temperature signal in the δ18O chronology is that higher temperatures stimulate evaporation of soil water, resulting in a preferential loss of lighter isotopes in soil water, which in turn is taken up by trees.
More specifically, lower atmospheric humidity causes higher vapor pressure gradient between leaf interstitial space and the atmosphere, resulting in a preferential loss of lighter isotopes and consequent enrichment in δ18O of leaf water.
Since all the responses of tree-ring δ18O to the climatic factors (precipitation, relative humidity, and temperature) are related to dry–wet conditions, the PDSI is considered to be the most useful single variable to explain the variance of our δ18O chronology.
d18O of the leaf water takes part in synthesis of photosynthates.
Masaki Sano, R Ramesh, MS Sheshshayee, R Sukumar
year (WEB9175515d): interpretation3_scope: '' has been replaced by 'climate'
Column 'TR11SAHU00-chron-NA1', with variable name 'yearEnsemble', was added to the dataset
d18O (WEB3638db18): paleoData_isPrimary: '' has been replaced by 'FALSE'
d18O (WEB3638db18): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
year (WEB9175515d): paleoData_isPrimary: '' has been replaced by 'TRUE'
year (WEB9175515d): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'
d18O (WEB3638db18): interpretation6_scope: '' has been replaced by 'isotope'
d18O (WEB3638db18): interpretation7_scope: '' has been replaced by 'isotope'
year (WEB9175515d): interpretation1_scope: '' has been replaced by 'climate'
year (WEB9175515d): interpretation2_scope: '' has been replaced by 'climate'
Updated lipdverse database entry with a changed file.
d18O (WEB3638db18): interpretation1_seasonality: 'June,July, August, September' has been replaced by 'Jun-Sep'
d18O (WEB3638db18): interpretation1_variable: 'P_amount, RH, T_air, P_E' has been replaced by 'precipitation'
d18O (WEB3638db18): interpretation2_seasonality: 'summer (June to September)' has been replaced by 'Jun-Sep'
d18O (WEB3638db18): interpretation2_variable: 'T' has been replaced by 'temperature'
d18O (WEB3638db18): interpretation3_seasonality: 'summer (June to September)' has been replaced by 'Jun-Sep'
d18O (WEB3638db18): interpretation3_variable: 'relative humdity' has been replaced by 'effectivePrecipitation'
d18O (WEB3638db18): interpretation4_seasonality: 'summer (June to September)' has been replaced by 'Jun-Sep'
d18O (WEB3638db18): interpretation4_variable: 'PDSI' has been replaced by 'effectivePrecipitation'
d18O (WEB3638db18): interpretation5_seasonality: 'JJAS' has been replaced by 'Jun-Sep'
d18O (WEB3638db18): interpretation5_variable: 'P_E' has been replaced by 'effectivePrecipitation'
Changes made as part of LiPDverse vocabulary standardization process
d18O (WEB3638db18): paleoData_longName: '' has been replaced by 'AD'
year (WEB9175515d): paleoData_units: 'AD' has been replaced by 'yr AD'
year (WEB9175515d): paleoData_longName: '' has been replaced by 'AD'
Sano, M., Ramesh, R., Sheshshayee, M. and Sukumar, R.: Increasing aridity over the past 223 years in the Nepal Himalaya inferred from a tree-ring δ18O chronology, The Holocene, 22(7), 809–817, doi:10.1177/0959683611430338, 2011.
Increasing aridity over the past 223 years in the Nepal Himalaya inferred from a tree-ring δ18O chronology