Articles | Volume 19, issue 23
https://doi.org/10.5194/bg-19-5521-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-5521-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Dec 2022
Research article |
| 08 Dec 2022
| 08 Dec 2022
A coupled ground heat flux–surface energy balance model of evaporation using thermal remote sensing observations
Bimal K. Bhattacharya
CORRESPONDING AUTHOR
Biological and Planetary Sciences and Applications Group, Space Applications Center, ISRO, Ahmedabad, India
Kaniska Mallick
CORRESPONDING AUTHOR
Remote Sensing and Natural Resources Modeling, Department ERIN,
Luxembourg Institute of Science and Technology, Belvaux, Luxembourg
Environmental Science Policy and Management, University of California, Berkeley, California, United States
Devansh Desai
Biological and Planetary Sciences and Applications Group, Space Applications Center, ISRO, Ahmedabad, India
Department of Physics, Electronics & Space Sciences, Gujarat
University, Ahmedabad, India
Department of Physics, Institute of Science, Silver Oak University,
Ahmedabad, Gujarat, India
Ganapati S. Bhat
Centre for Atmosphere and Oceanic Studies, Indian Institute of
Sciences, Bengaluru, India
Ross Morrison
Centre for Ecology and Hydrology, Lancaster, UK
Jamie R. Clevery
Terrestrial Ecosystem Research Network, College of Science and
Engineering, James Cook University, Cairns, Queensland, Australia
William Woodgate
CSIRO Land and Water, Floreat 6913, Western Australia, Australia
Jason Beringer
School of Earth and Environment, University of Western Australia, Western Australia, 6009, Australia
Kerry Cawse-Nicholson
Earth Science Section, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States
Siyan Ma
Environmental Science Policy and Management, University of California, Berkeley, California, United States
Joseph Verfaillie
Environmental Science Policy and Management, University of California, Berkeley, California, United States
Dennis Baldocchi
Environmental Science Policy and Management, University of California, Berkeley, California, United States
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Short summary
Evaporation retrieval in heterogeneous ecosystems is challenging due to empirical estimation of ground heat flux and complex parameterizations of conductances. We developed a parameter-sparse coupled ground heat flux-evaporation model and tested it across different limits of water stress and vegetation fraction in the Northern/Southern Hemisphere. The model performed particularly well in the savannas and showed good potential for evaporative stress monitoring from thermal infrared satellites.
Evaporation retrieval in heterogeneous ecosystems is challenging due to empirical estimation of...
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