Towards a long-term dataset of ELBARA II measurements assisting SMOS level-3 land product and algorithm validation at the Valencia Anchor Station

Roberto Fernández-Morán (1) , Jean-Pierre Wigneron (2) , M. Amparo Coll Pajaron (3) , Yann H. Kerr (4) , Maciej Miernecki (2) , Paula Maria Salgado Hernanz (3) , Mike Schwank (5) , Ernesto Lopez-Baeza (3)

1 Department of Earth Physics and Thermodynamics [Valencia]
2 EPHYSE - Écologie fonctionnelle et physique de l'environnement
3 UV - Universitat de València
4 CESBIO - Centre d'études spatiales de la biosphère
5 Swiss Federal Institute for Forest, Snow and Landscape Research WSL

This study is a validation of SMOS level 3 data using in situ measurements from the Valencia Anchor Station (VAS) in 2012. ELBARA-II radiometer is placed in the VAS, observing a vineyard field considered as representative of a SMOS footprint. Brightness temperatures (TB) acquired by ELBARA-II have been compared to those observed by SMOS at the same time and date. They were also inverted using the L-MEB model to provide soil moistures (SM), which later on have also been compared to those provided by SMOS.

Mots clés: brightness temperature; ELBARA-II; L-MEB; SMOS; SMOS level 3 data; soil moisture; soil roughness; Valencia Anchor Station; vegetation optical depth; vegetation water content

Domaines: Traitement du signal et de l'image [eess.SP]

Roberto Fernández-Morán, Jean-Pierre Wigneron, M. Amparo Coll Pajaron, Yann H. Kerr, Maciej Miernecki, et al.. Towards a long-term dataset of ELBARA II measurements assisting SMOS level-3 land product and algorithm validation at the Valencia Anchor Station. XV Congreso de la Asociación Española de Teledetección INTA, Oct 2013, Torrejón de Ardoz (Madrid), Spain. ⟨hal-01190016⟩