Statistical methods to estimate soil moisture from L-band radiometry: application to the SMOSREX experiment over a fallow site

Author

Saleh, K. ; Wigneron, J.-P. ; Calvet, J.-C. ; de Rosnay, P. ; Escorihuela, M.J. ; Kerr, Y. ; Waldteufel, P.

Author_Institution

INRA EPHYSE, D´´Ornon

Volume

1

fYear

2004

fDate

20-24 Sept. 2004

Lastpage

328

Abstract

This paper is part of an ongoing study aimed at exploring the potential of biangular measurements at L band to estimate near surface soil moisture. A statistical approach based on a physical radiative transfer model is tested over a natural grassland. Soil moisture shows an encouraging correlation with a combination of brightness temperatures measurements performed at two different angles. Nevertheless, the assumptions involved into the definition of a valid statistical index need to be studied. For that purpose, an insight into the modeling of grassland L band emission is also presented

Keywords

hydrological techniques; moisture; radiative transfer; radiometry; remote sensing; soil; statistical analysis; France; L band radiometry brightness temperature; ONERA installation area; SMOSREX experiment; Surface Monitoring Of Soil Reservoir Experiment; Toulouse; biangular measurement; grassland L band emission modeling; physical radiative transfer model; soil moisture estimation; statistical method; Brightness temperature; L-band; Moisture measurement; Radiometry; Soil measurements; Soil moisture; Statistical analysis; Surface soil; Temperature measurement; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-8742-2

Type

conf

DOI

10.1109/IGARSS.2004.1369027

Filename

1369027