Distinct glacial-interglacial amplitudes of Asian monsoon water isotopes during the last deglaciation

These data support the findings and figures in the manuscript “Distinct glacial-interglacial amplitudes of Asian monsoon water isotopes during the last deglaciation”, to be published in Communications Earth & Environment.

The dataset contains the processed model outputs directly used to generate key figures in the main text and supplementary information. Specifically:

Figure3_SourceData.nc: Contains the gridded fields for the spatial decomposition of annual δ¹⁸O in precipitation (δ¹⁸Op) between 11 ka and 20 ka, corresponding to the six-panel Figure 3 (e.g., total change, and contributions from Pacific and Indian Ocean moisture sources).

11ka_16O.nc and 20ka_16O.nc: Contains the climatological and anomalous (11ka - 20ka) spatial fields of annual moisture (O¹⁶) from all tagged source regions, which form the basis for the multi-panel maps in Supplementary Figure S3.

20ka_d18Op.nc: Contains the 20ka climatological spatial fields of annual δ¹⁸Op from all tagged source regions, which form the basis for the multi-panel maps in Supplementary Figure S4.

FigureS3S4barvalues.xlsx: Provides the quantitative regional-mean contributions of annual δ¹⁸Op and moisture (O¹⁶) from different source regions (e.g., Pacific Ocean, Indian Ocean, East Asian continent) to South Asia and Eastern China at 20 ka and 11 ka. These data are the basis for the bar charts in Supplementary Figures S3 and S4.

FigureS5_SourceData.nc: Contains the gridded fields used to generate the further decomposition of the δ¹⁸Op change into en-route depletion and condensation terms, as shown in Supplementary Figure S5.

Contact:For questions regarding this dataset, please contact the corresponding author, Weiyi Sun ([e-mail]). or the data contributor Xiaoqing Wang.