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Updated: Jun 4, 2025

Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
GARD-LENS: A downscaled large ensemble dataset for understanding future climate and its uncertainties
Samantha H Hartke1,2, Andrew J Newman3, Ethan Gutmann3
1National Science Foundation (NSF) National Center for Atmospheric Research (NCAR) Research Applications Lab (RAL), Boulder, USA. hartke@ucar.edu.
Abstract:
This article introduces the Generalized Analog Regression Downscaling method Large Ensemble (GARD-LENS) dataset, comprised of daily precipitation, mean temperature, and temperature range over the Contiguous U.S., Alaska, and Hawaii at 12-km, 4-km, and 1-km resolutions, respectively. GARD-LENS statistically downscales three CMIP6 global climate model large ensembles, CESM2, CanESM5, and EC-Earth3, totaling 200 ensemble members. GARD-LENS is the first downscaled SMILE (single model initial-condition large ensemble), providing information about the role of internal climate variability at high resolutions. The 150-year record of this large ensemble dataset provides ample data for assessing trends and extremes and allows users to robustly assess internal variability, forced climate signals, and time of emergence at high resolutions. As the need for high resolution, robust climate datasets continues to grow, GARD-LENS will be a valuable tool for scientists and practitioners who wish to account for internal variability in their future climate analyses and adaptation plans.
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