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 2026-04-23T21:14:57.485Z 177.2 2026-04-23T21:17:36.986Z 340.0 2026-04-23T21:17:58.279Z 177.2 2026-04-23T21:18:20.549Z 340.0 2026-04-23T21:18:53.066Z 177.2 2026-04-23T21:19:18.749Z 340.0 2026-04-23T21:19:39.819Z 177.2 2026-04-23T21:20:11.862Z 340.0 2026-04-23T21:20:34.234Z 177.2 2026-04-23T21:21:08.179Z 340.0 2026-04-23T21:21:32.438Z 177.2 2026-04-23T21:22:00.636Z 340.0 2026-04-23T21:22:22.079Z 177.2 2026-04-23T21:22:52.339Z 340.0 2026-04-23T21:23:24.404Z 177.2 2026-04-23T21:23:51.539Z 340.0 2026-04-23T21:24:14.671Z 177.2 2026-04-23T21:24:45.239Z 340.0 2026-04-23T21:27:50.371Z 177.2 2026-04-23T21:28:15.318Z 340.0 2026-04-23T21:28:45.911Z 177.2 2026-04-23T21:31:40.072Z 340.0 2026-04-23T21:31:59.456Z 177.2 2026-04-23T21:32:22.604Z 340.0 2026-04-23T21:32:55.078Z 177.2 2026-04-23T21:35:55.170Z 340.0 2026-04-23T21:36:28.708Z 177.2 2026-04-23T21:36:58.585Z 340.0 2026-04-23T21:37:19.129Z 177.2 2026-04-23T21:37:40.286Z 340.0 2026-04-23T21:37:58.112Z 177.2 2026-04-23T21:38:28.621Z 340.0 2026-04-23T21:38:50.631Z 177.2 2026-04-23T21:39:19.037Z 340.0 2026-04-23T21:39:47.887Z 177.2 2026-04-23T21:42:21.162Z 340.0 2026-04-23T21:45:04.155Z 177.2 2026-04-23T21:47:40.817Z 340.0 2026-04-23T21:48:03.769Z 177.2 2026-04-23T21:48:29.285Z 340.0 2026-04-23T21:48:49.024Z 177.2 2026-04-23T21:49:14.085Z