Development and validation of the CHIRTS-daily quasi-global high-resolution daily temperature data set

Scientific Data
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Abstract

We present a high-resolution daily temperature data set, CHIRTS-daily, which is derived by merging the monthly Climate Hazards center InfraRed Temperature with Stations climate record with daily temperatures from version 5 of the European Centre for Medium-Range Weather Forecasts Re-Analysis. We demonstrate that remotely sensed temperature estimates may more closely represent true conditions than those that rely on interpolation, especially in regions with sparse in situ data. By leveraging remotely sensed infrared temperature observations, CHIRTS-daily provides estimates of 2-meter air temperature for 1983–2016 with a footprint covering 60°S-70°N. We describe this data set and perform a series of validations using station observations from two prominent climate data sources. The validations indicate high levels of accuracy, with CHIRTS-daily correlations with observations ranging from 0.7 to 0.9, and very good representation of heat wave trends.

Publication type Article
Publication Subtype Journal Article
Title Development and validation of the CHIRTS-daily quasi-global high-resolution daily temperature data set
Series title Scientific Data
DOI 10.1038/s41597-020-00643-7
Volume 7
Year Published 2020
Language English
Publisher Nature Publications
Contributing office(s) Earth Resources Observation and Science (EROS) Center
Description 303, 14 p.
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