Effective soil moisture sampling depth of L-band radiometry: A case study

Abstract : The aim of this study is to analyze the influence of the soil moisture sampling depth in the parameterization of soil emission in microwave radiometry at L-band. The analysis is based on brightness temperature, soil moisture and temperature measurements acquired over a bare soil during the SMOSREX experiment. A more detailed profile of surface soil moisture was obtained with a soil heat and water flows mechanistic model. It was found that (1) the soil moisture sampling depth depends on soil moisture conditions, (2) the effective soil moisture sampling depth is shallower than provided by widely used field moisture sensors, and (3) the soil moisture sampling depth has an impact on the calibration of soil roughness model parameters. These conclusions are crucial for the calibration and validation of remote sensing data at L-band.
Type de document :
Article dans une revue
Remote Sensing of Environment, Elsevier, 2010, pp.7. 〈10.1016/j.rse.2009.12.011〉
Liste complète des métadonnées

Littérature citée [25 références]  Voir  Masquer  Télécharger

http://hal.ird.fr/ird-00467991
Contributeur : Dominique Bruel <>
Soumis le : vendredi 25 juin 2010 - 16:39:20
Dernière modification le : jeudi 11 janvier 2018 - 06:15:37
Document(s) archivé(s) le : lundi 27 septembre 2010 - 10:47:54

Fichier

escorihuela-rse_2010-2.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

M. J. Escorihuela, Andre Chanzy, J.P. Wigneron, Y.H. Kerr. Effective soil moisture sampling depth of L-band radiometry: A case study. Remote Sensing of Environment, Elsevier, 2010, pp.7. 〈10.1016/j.rse.2009.12.011〉. 〈ird-00467991〉

Partager

Métriques

Consultations de la notice

367

Téléchargements de fichiers

845