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 2.732 2026-04-23T20:39:54.131Z 1.437 2026-04-23T20:40:28.796Z 2.732 2026-04-23T20:43:18.747Z 1.438 2026-04-23T20:43:51.232Z 2.732 2026-04-23T20:44:21.586Z 1.438 2026-04-23T20:44:57.027Z 2.732 2026-04-23T20:45:23.031Z 1.438 2026-04-23T20:48:15.819Z 2.732 2026-04-23T20:48:45.305Z 1.438 2026-04-23T20:49:09.797Z 2.732 2026-04-23T20:49:30.898Z 1.436 2026-04-23T20:50:06.775Z 2.732 2026-04-23T20:50:36.843Z 1.438 2026-04-23T20:51:04.229Z 2.732 2026-04-23T20:53:51.087Z 1.438 2026-04-23T20:54:13.293Z 2.732 2026-04-23T20:54:38.346Z 1.438 2026-04-23T20:54:58.609Z 2.732 2026-04-23T20:55:24.226Z 1.438 2026-04-23T20:55:46.167Z 2.732 2026-04-23T21:00:51.113Z 1.436 2026-04-23T21:01:28.784Z 2.732 2026-04-23T21:02:01.492Z 1.438 2026-04-23T21:02:33.092Z 2.732 2026-04-23T21:03:05.321Z 1.438 2026-04-23T21:03:39.808Z 2.732 2026-04-23T21:06:20.932Z 1.438 2026-04-23T21:07:05.401Z 2.732 2026-04-23T21:07:55.367Z 1.438 2026-04-23T21:08:21.180Z 2.732 2026-04-23T21:08:53.868Z 1.437 2026-04-23T21:09:28.372Z 2.732 2026-04-23T21:09:49.200Z 1.438 2026-04-23T21:10:16.765Z 2.732 2026-04-23T21:10:41.742Z 1.438 2026-04-23T21:11:17.409Z 2.733 2026-04-23T21:11:54.033Z 1.438 2026-04-23T21:12:18.732Z 2.732 2026-04-23T21:12:53.106Z 1.438 2026-04-23T21:13:27.630Z 2.732 2026-04-23T21:14:01.295Z 1.437 2026-04-23T21:14:32.161Z