ECOSTRESS: NASA's next generation mission to measure evapotranspiration from the International Space Station

Fisher, Joshua B.; Lee, Brian; Purdy, Adam J.; Halverson, Gregory H.; Dohlen, Matthew B.; Cawse‐Nicholson, Kerry; Wang, Audrey; Anderson, Ray G.; Aragon, Bruno; Arain, M. Altaf; Baldocchi, Dennis D.; Baker, John M.; Barral, Hélène; Bernacchi, Carl J.; Christian, Bernhofer; Biraud, Sébastien C.; Bohrer, Gil; Brunsell, Nathaniel; Cappelaere, Bernard; Castro‐Contreras, Saulo; Chun, Junghwa; Conrad, Bryan J.; Cremonese, Edoardo; Demarty, Jérôme; Desai, Ankur R.; De Ligne, Anne; Foltýnová, Lenka; Goulden, Michael L.; Griffis, Timothy J.; Grünwald, Thomas; Johnson, Mark S.; Kang, Minseok; Kelbe, Dave; Kowalska, Natalia; Lim, Jong‐Hwan; Maïnassara, Ibrahim; McCabe, Matthew F.; Missik, Justine E.C.; Mohanty, Binayak P.; Moore, Caitlin E.; Morillas, Laura; Morrison, Ross ORCID: https://orcid.org/0000-0002-1847-3127; Munger, J. William; Posse, Gabriela; Richardson, Andrew D.; Russell, Eric S.; Ryu, Youngryel; Sanchez‐Azofeifa, Arturo; Schmidt, Marius; Schwartz, Efrat; Sharp, Iain; Šigut, Ladislav; Tang, Yao; Hulley, Glynn; Anderson, Martha; Hain, Christopher; French, Andrew; Wood, Eric; Hook, Simon. 2020 ECOSTRESS: NASA's next generation mission to measure evapotranspiration from the International Space Station. Water Resources Research, 56 (4), e2019WR026058. 20, pp. https://doi.org/10.1029/2019WR026058

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Official URL: https://doi.org/10.1029/2019WR026058

Abstract/Summary

The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station ECOSTRESS) was launched to the International Space Station on June 29, 2018. The primary science focus of ECOSTRESS is centered on evapotranspiration (ET), which is produced as level‐3 (L3) latent heat flux (LE) data products. These data are generated from the level‐2 land surface temperature and emissivity product (L2_LSTE), in conjunction with ancillary surface and atmospheric data. Here, we provide the first validation (Stage 1, preliminary) of the global ECOSTRESS clear‐sky ET product (L3_ET_PT‐JPL, version 6.0) against LE measurements at 82 eddy covariance sites around the world. Overall, the ECOSTRESS ET product performs well against the site measurements (clear‐sky instantaneous/time of overpass: r2 = 0.88; overall bias = 8%; normalized RMSE = 6%). ET uncertainty was generally consistent across climate zones, biome types, and times of day (ECOSTRESS samples the diurnal cycle), though temperate sites are over‐represented. The 70 m high spatial resolution of ECOSTRESS improved correlations by 85%, and RMSE by 62%, relative to 1 km pixels. This paper serves as a reference for the ECOSTRESS L3 ET accuracy and Stage 1 validation status for subsequent science that follows using these data.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1029/2019WR026058
UKCEH and CEH Sections/Science Areas:	Hydro-climate Risks (Science Area 2017-)
ISSN:	0043-1397
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
Additional Keywords:	ECOSTRESS, eddy covariance, evapotranspiration, latent heat flux, satellite, validation
NORA Subject Terms:	Ecology and Environment Atmospheric Sciences
Date made live:	18 Apr 2020 12:47 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/527508

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1029/2019WR026058

UKCEH and CEH Sections/Science Areas:

Hydro-climate Risks (Science Area 2017-)

ISSN:

0043-1397

Additional Information. Not used in RCUK Gateway to Research.:

Open Access paper - full text available via Official URL link.

Additional Keywords:

ECOSTRESS, eddy covariance, evapotranspiration, latent heat flux, satellite, validation