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ECOSTRESS: NASA's Next Generation Mission to Measure Evapotranspiration From the International Space Station

Water Resources Research, 2020-04, Vol.56 (4), p.n/a [Peer Reviewed Journal]

2020. The Authors. ;2020. This article is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Copyright ;ISSN: 0043-1397 ;EISSN: 1944-7973 ;DOI: 10.1029/2019WR026058

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Title:
ECOSTRESS: NASA's Next Generation Mission to Measure Evapotranspiration From the International Space Station
Author: 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. ; Bernhofer, Christian ; 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 ; 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
Subjects: Aeronautics ; Atmospheric data ; Covariance ; Data ; Diurnal ; Diurnal cycle ; Diurnal variations ; ECOSTRESS ; Eddy covariance ; Emissivity ; ENVIRONMENTAL SCIENCES ; Evapotranspiration ; Evapotranspiration measurements ; Heat flux ; Heat transfer ; International Space Station ; Land surface temperature ; Latent heat ; Latent heat flux ; Multinational space ventures ; Radiometers ; Root-mean-square errors ; satellite ; Sciences of the Universe ; Space stations ; Spatial discrimination ; Spatial resolution ; Surface temperature ; validation
Is Part Of: Water Resources Research, 2020-04, Vol.56 (4), p.n/a
Description: The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) was launched to the International Space Station on 29 June 2018 by the National Aeronautics and Space Administration (NASA). 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 root‐mean‐square error, 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 overrepresented. 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. Key Points ECOSTRESS is a state‐of‐the‐art combination of thermal bands, spatial and temporal resolutions, and measurement accuracy and precision Data from 82 eddy covariance sites were coalesced concurrently with the first year of ECOSTRESS for Stage 1 validation Clear‐sky ET from ECOSTRESS compared well against a wide range of eddy covariance sites, vegetation classes, climate zones, and times of day
Publisher: Washington: Blackwell Publishing Ltd
Language: English
Identifier: ISSN: 0043-1397
EISSN: 1944-7973
DOI: 10.1029/2019WR026058
Source: Hyper Article en Ligne (HAL) (Open Access)
Wiley Blackwell AGU Digital Library

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ECOSTRESS: NASA's Next Generation Mission to Measure Evapotranspiration From the International Space Station

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