Abstract
The MACA dataset is a spatially and temporally complete, high-resolution (1/24th degree ~4-km) gridded dataset of downscaled climate projections of surface meteorological variables (temperature, precipitation, humidity, wind, radiation) for the coterminous United States. The climate projections originate from phase 5 of the Coupled Model Intercomparison Projection (CMIP5) from 1979-present and include outputs from 20 global climate models (GCMs) for the historical GCM forcings (1950-2005) and the future Representative Concentration Pathways (RCPs) RCP 4.5 and RCP8.5 scenarios (2006-2100). Note there are 3 different MACA products depending on which version of MACA was used and which historical training dataset was used: MACAv1-METDATA, MACAv2-LIVNEH and MACAv2-METDATA.