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On the Reduction of the Systematic Error in Imaging Radiometry by Aperture Synthesis: A New Approach for the SMOS Space Mission

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3 Author(s)
Khazaal, A. ; Lab. d''Astrophys. de Toulouse-Tarbes, Univ. de Toulouse-CNRS, Toulouse ; Carfantan, H. ; Anterrieu, E.

The Soil Moisture and Ocean Salinity (SMOS) mission is a European Space Agency project aimed at global monitoring of surface SMOS from radiometric L-band observations. This letter is concerned with the reduction of the systematic error (or bias) in the reconstruction of radiometric brightness temperature maps from SMOS interferometric measurements. A recent and efficient method has been proposed for reducing this error. However, a residual bias still persists. A new approach for reducing this bias down to residual values less than 0.1 K is presented here and illustrated with numerical simulations.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:6 ,  Issue: 1 )

Date of Publication:

Jan. 2009

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