all edu.ucar.gdex GRID NetCDF Freely Available This dataset provides a global collection of hydroclimatic stress and climate extreme indices derived from large ensemble simulations of two Earth system models: the Community Earth System Model Large Ensemble version 2 (LENS2) and the Energy Exascale Earth System Model version 2 (E3SMv2). The dataset includes daily vapor pressure deficit (VPD) and Keetch-Byram Drought Index (KBDI), as well as the Standardized Precipitation Evapotranspiration Index (SPEI) at 1-, 3-, and 12-month accumulation timescales. Together, these indices characterize atmospheric moisture demand, drought variability, and hydroclimatic stress relevant to ecosystem impacts, wildfire risk, and climate extremes. In addition to these process-based stress metrics, the dataset also includes a suite of standard ETCCDI (Expert Team on Climate Change Detection and Indices) threshold- and duration-based extreme indices derived from temperature and precipitation. The indices are derived from the 100-member LENS2 ensemble and the 21-member E3SMv2 ensemble, spanning 1850-2100 and covering both the historical period (1850-2014) and the SSP3-7.0 scenario (2015-2100). Both ensembles provide global coverage at approximately 1 x 1.25 degree horizontal resolution in the atmosphere and land components, enabling consistent analysis of hydroclimatic extremes and internal climate variability across past and projected climates. UCAR/NCAR/CGD NCAR/GDEX 11.52 2026-05-04T18:27:32.991Z 11.07 2026-05-04T18:27:35.606Z 11.07 2026-05-04T18:27:38.685Z 11.07 2026-05-04T18:27:41.754Z 11.07 2026-05-04T18:27:41.392Z 11.52 2026-05-04T18:27:43.065Z 11.07 2026-05-04T18:27:23.642Z 11.07 2026-05-04T18:27:30.350Z 11.07 2026-05-04T18:27:46.977Z 11.07 2026-05-04T18:27:46.074Z 11.52 2026-05-04T18:27:34.376Z 11.07 2026-05-04T18:27:42.258Z 11.07 2026-05-04T18:27:39.108Z 11.07 2026-05-04T18:27:46.483Z 11.07 2026-05-04T18:27:36.892Z 11.52 2026-05-04T18:27:21.690Z 11.07 2026-05-04T18:27:35.274Z 11.07 2026-05-04T18:27:24.055Z 11.07 2026-05-04T18:27:49.802Z 11.07 2026-05-04T18:27:52.155Z 11.52 2026-05-04T18:27:42.596Z 73.45 2026-05-04T18:27:28.965Z 73.45 2026-05-04T18:27:50.667Z 73.45 2026-05-04T18:27:33.973Z 73.45 2026-05-04T18:27:44.338Z 73.45 2026-05-04T18:27:25.874Z 73.45 2026-05-04T18:27:25.016Z 73.45 2026-05-04T18:27:53.296Z 73.45 2026-05-04T18:27:49.306Z 73.45 2026-05-04T18:27:29.935Z 73.45 2026-05-04T18:27:31.369Z 73.45 2026-05-04T18:27:23.051Z 73.45 2026-05-04T18:27:26.984Z 73.45 2026-05-04T18:27:27.826Z 73.45 2026-05-04T18:27:45.638Z 73.45 2026-05-04T18:27:38.140Z 73.45 2026-05-04T18:27:47.993Z 73.45 2026-05-04T18:27:51.549Z 73.45 2026-05-04T18:27:34.845Z 73.45 2026-05-04T18:27:40.919Z 73.45 2026-05-04T18:27:36.537Z 73.45 2026-05-04T18:27:32.595Z