Unprecedented Continental Drying, Shrinking Freshwater Availability, and Increasing Land Contributions to Sea Level Rise
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The datasets provided in support of the study 'Unprecedented Continental Drying,Shrinking Freshwater Availability, and Increasing Land Contributions to SeaLevel Rise' by Chandanpurkar et al, 2025. Questions regarding these data can be addressed to chandanpurkar@protonmail.com. The datasets are as follows:1. gic_mask.nc: The mask used to identify JPL mascons that feature signals from mountain glaciers and ice caps. 2. four_megaregions.shp: The drying mega-regions identified in the study. 3. high_res_local_trends.nc: The local trends from enhanced-resolution,bias-corrected TWS data for the period 2/2003-4/2024. The units are km3 yr-1. 4. persistant_local_trends.nc: The results from the sensitivity analysis forpersistence of the local trends to an incrementally increasing duration of GRACErecords, shown in Figure 4a. The units are in percentages. The locations with 0%value have always shown positive trends, and the 100% value represents locationsthat have always shown negative trends to the increasing GRACE record length.The persistent wetting trends are considered for values between 0-5%, whilepersistent drying trends are for values between 95-100%. 5. ratio_t_ia.nc: The map of local ratios of trend variance to interannual variance,shown in Figure 4b. Values greater than 1 indicate that the long-term trendvariance exceeds interannual variability.
