(ii) AMMA-CATCH processed products

AMMA-CATCH provides several types of services listed in the Table below :

  • The observatory develops innovative methods for mobilizing satellite and in-situ data on "continental surface" issues, in association with either national teams (Theia SEC) or international (ESA, NASA), to which we bring our expertise on West Africa, its vegetation and its climate.
  • AMMA-CATCH develops statistical products and reanalyses.
  • Finally, the observatory participates in specific Calibration-Validation (Cal/Val) campaigns for satellites with its in situ measurement network which is made available in real time for these campaigns.
Type of service Name Object AMMA-CATCH Contribution
Service access 		AMMA-CATCH Principal Investigator(s)
Reference Publication(s)
In production
Reanalysis Climatic dataset A 60-year reconstructed high-resolution local meteorological data set in Central Sahel (1950-2009) Coordination
Data access		 C. Léauthaud ✉
Léauthaud et al., 2017
Remote sensing product PrISM Precipitation Inferred from Soil Moisture. Coordination
PrISM 0.1°
PrISM 0.25°		 T. Pellarin ✉
Pellarin et al., 2022 ; Pellarin et al., 2020 ;
Roman et al., 2017
Remote sensing product MODIS land MODIS vegetation products : LAI, FAPAR and FCover Participation in the West African part of NASA products :
LAI / FAPAR product
Land Cover product		 NASA "Land Validation Team" including E. Mougin ✉ P. Hiernaux ✉, M. Diawara ✉
Mougin et al., subm. ;
Rahimi et al., 2021
In prototyping
Statistical product Rainfall index Annual rainfall index over Sahel Coordination G. Panthou ✉
Panthou et al., 2014 ; 2018 ;
Chagnaud et al. 2021
Remote sensing product Evapotranspiration Mapping of evapotranspiration by satellite imagery. Sahelian part of the Theia product :
Evapotranspiration
A. Olioso ✉		 J. Demarty ✉, J. Etchanchu ✉
Allies et al., 2020 ;
Olioso et al., 2018
Remote sensing product Surface Water Quantity and quality of surface water in Sahelian lakes West African part of the Theia product :
Continental water color
J-M. Martinez ✉		 M. Grippa ✉, E. Robert ✉
Robert et al., 2016, 2017
Remote sensing product Land use Land cover Sahelian part of the Theia product :
Land Cover
S. Valero ✉		 M. Grippa ✉
Other services
Satellite Cal/Val SMOS
launched in 2009		 Soil Moisture and Ocean Salinity satellite West Africa Cal/val
Campaign : 2008-2011		 Kerr et al., 2016
Satellite Cal/Val Megha-Tropiques
launched in 2011		 Water cycle in the tropical atmosphere
in the context of climate change		 West Africa Cal/Val
Campaign : 2010-2012		 Rocca et al., 2018
Satellite Cal/Val SMAP
launched in 2015		 Soil Moisture Active Passive West Africa Cal/Val
Campaign : 2014-2016		 Colliander et al., 2017,
2021
Satellite Cal/Val Ecostress
launched in 2018		 ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station West Africa Cal/Val
Campaign : 2017-2019		 Fisher et al., 2020
Satellite Cal/Val SWOT
launched in 2022		 Surface Water Ocean Topography Mission West Africa Cal/Val
Ongoing campaign : 2021-2023		 Grippa et al., 2019
Satellite Cal/Val TRISHNA
(launch planned for 2025)		 Thermal infraRed Imaging Satellite for High-resolution Natural resource Assessment West Africa Cal/Val
Upcoming campaigns :
2018-2022		 Delogu et al., 2021 ;
Allies et al. 2020

Updated on 8 janvier 2023