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Global Weekly Inland Surface Water Dynamics from L-Band Microwave

Abstract : Wetlands and open waters are key components of the hydrological and carbon cycles but their spatio-temporal dynamics are still not well known at global scale. Current paper presents a new methodology to retrieve water fraction at coarse scale and high temporal resolution (one week) using L-Band multi-angular and dual polarisation remote sensing data from SMOS mission. The dataset labeled G-SWAF (or Global-SWAF) is an extention of the SWAF approach which did not consider the separate contributions of the Soil, Vegetation and water fractions. The comparison to existing datasets shows more water fraction detecting in Tropical areas but better consideration of high latitudes is still needed to be included in future studies. The use of such datasets with the future data from the SWOT (NASA/CNES) mission will provide global evaluation of inland open water volumes at 10 days scale.
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https://hal.inrae.fr/hal-03170443
Contributor : Christelle Raynaud <>
Submitted on : Tuesday, March 16, 2021 - 11:03:52 AM
Last modification on : Tuesday, September 7, 2021 - 3:44:41 PM

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Al Bitar Ahmad, Marie Parrens, Christophe Fatras, Santiago Peña Luque. Global Weekly Inland Surface Water Dynamics from L-Band Microwave. IGARSS 2020 - IEEE International Geoscience and Remote Sensing Symposium, Sep 2020, Waikoloa, France. pp.5089-5092, ⟨10.1109/IGARSS39084.2020.9324291⟩. ⟨hal-03170443⟩

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