Articles | Volume 19, issue 10
https://doi.org/10.5194/bg-19-2557-2022
© 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-19-2557-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Assimilation of passive microwave vegetation optical depth in LDAS-Monde: a case study over the continental USA
Anthony Mucia
CNRM, Université de Toulouse, Météo-France, CNRS, 31057, Toulouse, France
Bertrand Bonan
CNRM, Université de Toulouse, Météo-France, CNRS, 31057, Toulouse, France
Clément Albergel
CNRM, Université de Toulouse, Météo-France, CNRS, 31057, Toulouse, France
European Space Agency Climate Office, ECSAT, Harwell Campus, Oxfordshire, Didcot, OX11 0FD, UK
Yongjun Zheng
CNRM, Université de Toulouse, Météo-France, CNRS, 31057, Toulouse, France
Jean-Christophe Calvet
CORRESPONDING AUTHOR
CNRM, Université de Toulouse, Météo-France, CNRS, 31057, Toulouse, France
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Clément Albergel, Yongjun Zheng, Bertrand Bonan, Emanuel Dutra, Nemesio Rodríguez-Fernández, Simon Munier, Clara Draper, Patricia de Rosnay, Joaquin Muñoz-Sabater, Gianpaolo Balsamo, David Fairbairn, Catherine Meurey, and Jean-Christophe Calvet
Hydrol. Earth Syst. Sci., 24, 4291–4316, https://doi.org/10.5194/hess-24-4291-2020, https://doi.org/10.5194/hess-24-4291-2020, 2020
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LDAS-Monde is a global offline land data assimilation system (LDAS) that jointly assimilates satellite-derived observations of surface soil moisture (SSM) and leaf area index (LAI) into the ISBA (Interaction between Soil Biosphere and Atmosphere) land surface model (LSM). This study demonstrates that LDAS-Monde is able to detect, monitor and forecast the impact of extreme weather on land surface states.
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Short summary
For the first time, microwave vegetation optical depth data are assimilated in a land surface model in order to analyze leaf area index and root zone soil moisture. The advantage of microwave products is the higher observation frequency. A large variety of independent datasets are used to verify the added value of the assimilation. It is shown that the assimilation is able to improve the representation of soil moisture, vegetation conditions, and terrestrial water and carbon fluxes.
For the first time, microwave vegetation optical depth data are assimilated in a land surface...
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