Article (Scientific journals)
An all-weather land surface temperature product based on MSG/SEVIRI observations
Martins, João P.A.; Trigo, Isabel F.; Ghilain, Nicolas et al.
2019In Remote Sensing, 11 (24), p. 3044
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Keywords :
All-weather; Infrared; Land surface temperature; Microwave; surface energy balance; Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E); In-situ observations; Infrared measurements; Infrared observations; Land surface analysis; Meteosat second generations; Satellite application facilities; Spinning Enhanced Visible and Infrared Imager; Earth and Planetary Sciences (all)
Abstract :
[en] A new all-weather land surface temperature (LST) product derived at the Satellite Application Facility on Land Surface Analysis (LSA-SAF) is presented. It is the first all-weather LST product based on visible and infrared observations combining clear-sky LST retrieved from the Spinning Enhanced Visible and Infrared Imager on Meteosat Second Generation (MSG/SEVIRI) infrared (IR) measurements with LST estimated with a land surface energy balance (EB) model to fill gaps caused by clouds. The EB model solves the surface energy balance mostly using products derived at LSA-SAF. The new product is compared with in situ observations made at 3 dedicated validation stations, and with a microwave (MW)-based LST product derived from Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) measurements. The validation against in-situ LST indicates an accuracy of the new product between -0.8 K and 1.1 K and a precision between 1.0 K and 1.4 K, generally showing a better performance than the MW product. The EB model shows some limitations concerning the representation of the LST diurnal cycle. Comparisons with MW LST generally show higher LST of the new product over desert areas, and lower LST over tropical regions. Several other imagers provide suitable measurements for implementing the proposed methodology, which offers the potential to obtain a global, nearly gap-free LST product.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Martins, João P.A.;  Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal ; Instituto Dom Luiz (IDL), FCUL, Lisbon, Portugal
Trigo, Isabel F. ;  Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal ; Instituto Dom Luiz (IDL), FCUL, Lisbon, Portugal
Ghilain, Nicolas  ;  Université de Liège - ULiège > Sphères ; Royal Meteorological Institute, Ukkel, Brussels, Belgium
Jimenez, Carlos;  Estellus, Paris, France ; LERMA, CNRS, Observatoire de Paris, Paris, France
Göttsche, Frank-M. ;  Karlsruhe Institute of Technology, IMK-IFU, Garmisch-Partenkirchen, Germany
Ermida, Sofia L. ;  Instituto Português do Mar e da Atmosfera (IPMA), Lisbon, Portugal ; Instituto Dom Luiz (IDL), FCUL, Lisbon, Portugal
Olesen, Folke-S.;  Karlsruhe Institute of Technology, IMK-IFU, Garmisch-Partenkirchen, Germany
Gellens-Meulenberghs, Françoise;  Royal Meteorological Institute, Ukkel, Brussels, Belgium
Arboleda, Alirio;  Royal Meteorological Institute, Ukkel, Brussels, Belgium
Language :
English
Title :
An all-weather land surface temperature product based on MSG/SEVIRI observations
Publication date :
December 2019
Journal title :
Remote Sensing
eISSN :
2072-4292
Publisher :
MDPI AG, Basel, Che
Volume :
11
Issue :
24
Pages :
3044
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
Acknowledgments: The MSG/SEVIRI IR and EB model LST data were generated by the LSA SAF. The work at RMI has been funded by EUMETSAT and the European Space Agency through the PRODEX programme of the Belgian Science Policy. The AMSR-E/Aqua LST data was obtained through the GlobTemperature portal (http://data.globtemperature.info/). CJ acknowledges support from the European Space Agency (ESA) Data User Element (DUE) GlobTemperature project.Funding: This work was performed within the framework of the LSA SAF (http://lsa-saf-eumetsat.int) project, funded by EUMETSAT.
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