Performance of a spatial error correction technique in SMOS brightness temperature images

Author

Lin, Wu ; Torres, Francese ; Corbella, Ignasi ; Duffo, Nuria ; Martín-Neira, Manuel

Author_Institution

Remote Sensing Lab., Univ. Politec. de Catalunya (UPC), Barcelona, Spain

fYear

2012

fDate

5-9 March 2012

Firstpage

1

Lastpage

5

Abstract

Soil Moisture and Ocean Salinity (SMOS) brightness temperature synthesized images are obtained after a comprehensive calibration and error correction procedure. However, the final images are still contaminated by small but non-negligible spatial errors: the so-called pixel bias. These errors have been found to be very stable in the SMOS Alias-Free Field of View (AF-FoV) and can be mitigated, to a large extent, by applying a multiplicative mask to the measured brightness temperatures at the antenna plane. This paper describes the procedure to upgrade this mask to cover SMOS Extended AF-FoV.

Keywords

error correction; geophysical techniques; masks; SMOS alias-free field of view; SMOS brightness temperature image; multiplicative mask; non-negligible spatial error; pixel bias; spatial error correction technique; Area measurement; Calibration; Geophysical measurements; Rotation measurement; Calibration; SMOS; Soil Moisture and Ocean Salinity; imaging; interferometer; radiometer; remote sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2012 12th Specialist Meeting on

Conference_Location

Rome

Print_ISBN

978-1-4673-1468-8

Type

conf

DOI

10.1109/MicroRad.2012.6185262

Filename

6185262