An evaluation of gridded weather data sets for the purpose of estimating reference evapotranspiration in the United States

Philip A. Blankenau, Ayse Kilic and Richard Allen

Agricultural Water Management, 2020, vol. 242, issue C

Abstract: This study assessed the quality of gridded weather data for calculating reference evapotranspiration (ETref), which, by definition, represents a near maximum ET occurring in a well-watered agricultural environment. Six gridded weather data sets – GLDAS-1, NLDAS-2, the CFSv2 operational analysis, gridMET, RTMA, and NDFD – were compared to weather data collected from 103 weather stations located in well-watered settings across the conterminous United States. ETref along with the weather variables used to compute it – near-surface air temperature, vapor pressure, wind speed, and shortwave solar radiation – were compared.

Keywords: Reference evapotranspiration; Gridded weather data; Irrigation; NLDAS; GLDAS gridMET; NDFD; RTMA (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (10)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:242:y:2020:i:c:s0378377420304753

DOI: 10.1016/j.agwat.2020.106376

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