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California 270-meter Basin Characterization Model using Weather Generator Scenarios, Part II - Monthly Climate and Hydrology

April 17, 2026

This data release includes the downscaled climate inputs from four Weather Generator Scenarios and hydrologic outputs using the Basin Characterization Model (BCM) version 8 (v8), described in Flint and others (2021a), with a 270 by 270-meter spatial resolution at a monthly time steps from water years 1916 to 2018 for California.

Weather Generator scenarios defined as:
BaseW = baseline
LOC50 = +2% mean precipitation, +1.5 degrees Celsius
LOC75 = 0% mean precipitation, +1.7 degrees Celsius
LOC95 = -2% mean precipitation, +1.8 degrees Celsius

This data release includes twelve child items, three for each Weather Generator Scenario. Monthly climate variables [precipitation (PPT), maximum air temperature (TMX), minimum air temperature (TMN), potential evapotranspiration (PET)], monthly hydrology BCM variables [actual evapotranspiration (AET), climatic water deficit (CWD), snowpack or snow water equivalent (PCK), recharge (RCH), runoff (RUN), and soil moisture storage (STR)], and water year summaries are provided for each model.

Publication Year 2026
Title California 270-meter Basin Characterization Model using Weather Generator Scenarios, Part II - Monthly Climate and Hydrology
DOI 10.5066/P1V5PACH
Authors Michelle A Stern, Diana Zamora-Reyes
Product Type Data Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Sacramento Projects Office (USGS California Water Science Center)
Rights This work is marked with CC0 1.0 Universal
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