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 340.0 2026-04-23T23:50:31.815Z 177.2 2026-04-23T23:51:04.261Z 340.0 2026-04-23T23:51:33.551Z 177.2 2026-04-23T23:51:58.381Z 340.0 2026-04-23T23:52:23.092Z 177.2 2026-04-23T23:52:43.041Z 340.0 2026-04-23T23:53:09.809Z 177.2 2026-04-23T23:53:39.060Z 340.0 2026-04-23T23:54:12.578Z 177.2 2026-04-23T23:54:32.457Z 340.0 2026-04-23T23:55:02.088Z 177.2 2026-04-23T23:55:32.379Z 340.0 2026-04-23T23:55:58.188Z 177.2 2026-04-23T23:56:15.441Z 340.0 2026-04-23T23:58:56.435Z 177.2 2026-04-23T23:59:18.503Z 340.0 2026-04-23T23:59:40.357Z 177.2 2026-04-24T00:00:14.951Z 340.0 2026-04-24T00:00:35.744Z 177.2 2026-04-24T00:01:05.186Z 340.0 2026-04-24T00:01:36.657Z 177.2 2026-04-24T00:02:10.267Z 340.0 2026-04-24T00:02:42.465Z 177.2 2026-04-24T00:03:07.033Z 340.0 2026-04-24T00:03:26.897Z 177.2 2026-04-24T00:03:51.513Z 340.0 2026-04-24T00:04:17.452Z 177.2 2026-04-24T00:04:41.975Z 340.0 2026-04-24T00:05:11.631Z 177.2 2026-04-24T00:05:47.494Z 340.0 2026-04-24T00:06:26.024Z 177.2 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