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SMOS soil moisture product evaluation over West-Africa from local to regional scale
- Source :
- Remote Sensing of Environment, Remote Sensing of Environment, Elsevier, 2015, 156, pp.383-394. ⟨10.1016/j.rse.2014.10.005⟩
- Publication Year :
- 2015
-
Abstract
- This paper assessed the SMOS soil moisture values from Level 3 (SMOS L3SM) product provided by the French CNES-CATDS. The evaluation was conducted at the local scale through comparison with ground-based soil moisture measurements acquired in Mali, Niger and Benin from 2010 to 2012. The SMOS L3SM product was compared to three other satellite-based soil moisture products. It was found that, in average over the three sites, the SMOS L3SM product provided the best coefficients of correlation and the lowest root mean square errors (RMSE). The second part of the paper is devoted to retrieve soil moisture estimates between successive SMOS soil moisture measurements in order to increase the temporal resolution. The result of the methodology allows obtaining 3-hour soil moisture mapping over West Africa with a coefficient of correlation greater than 0.82, and an RMSE lower than 0.030 m3 m− 3 in Niger and Mali and lower than 0.044 m3 m− 3 in Benin.
- Subjects :
- 010504 meteorology & atmospheric sciences
0207 environmental engineering
Soil Science
Soil science
02 engineering and technology
West-Africa
01 natural sciences
West africa
Product (category theory)
Computers in Earth Sciences
020701 environmental engineering
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment
Water content
ComputingMilieux_MISCELLANEOUS
0105 earth and related environmental sciences
Remote sensing
Hydrology
Rainfall estimation
Local scale
Geology
Environmental science
Satellite
Soil moisture
Scale (map)
SMOS
Subjects
Details
- ISSN :
- 00344257 and 18790704
- Database :
- OpenAIRE
- Journal :
- Remote Sensing of Environment, Remote Sensing of Environment, Elsevier, 2015, 156, pp.383-394. ⟨10.1016/j.rse.2014.10.005⟩
- Accession number :
- edsair.doi.dedup.....0845cc164bb3ed254413d938de862d5d
- Full Text :
- https://doi.org/10.1016/j.rse.2014.10.005⟩