SMOS instrument performance and calibration after six years in orbit

ESA's Soil Moisture and Ocean Salinity (SMOS) mission, launched 2-Nov-2009, has been in orbit for over 6years, and its Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) in two dimensions keeps working well. The calibration strategy remains overall as established after the commissioni...

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Bibliographic Details
Published in:Remote sensing of environment 2016-07, Vol.180, p.19-39
Main Authors: Martín-Neira, M., Oliva, R., Corbella, I., Torres, F., Duffo, N., Durán, I., Kainulainen, J., Closa, J., Zurita, A., Cabot, F., Khazaal, A., Anterrieu, E., Barbosa, J., Lopes, G., Tenerelli, J., Díez-García, R., Fauste, J., Martín-Porqueras, F., González-Gambau, V., Turiel, A., Delwart, S., Crapolicchio, R., Suess, M.
Format: Article
Language:English
Subjects:
Antennas
Aperture synthesis
Aperture Synthesis radiometry
Apertures
Assessments
Calibration
Ciències de la terra
Ciències de la terra i de la vida
Earth sciences
Enginyeria agroalimentària
Enginyeria de la telecomunicació
Error
Image-reconstruction algorithm
Impact
L-Band radiometry
MIRAS
Mission
Missions
Oceans
Radiocomunicació i exploració electromagnètica
Reduction
Remote sensing
Reprocessing
Sea surface salinity
Soil moisture
Soil Moisture and Ocean Salinity (SMOS) Mission
Teledetecció
Àrees temàtiques de la UPC
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Summary:ESA's Soil Moisture and Ocean Salinity (SMOS) mission, launched 2-Nov-2009, has been in orbit for over 6years, and its Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) in two dimensions keeps working well. The calibration strategy remains overall as established after the commissioning phase, with a few improvements. The data for this whole period has been reprocessed with a new fully polarimetric version of the Level-1 processor which includes a refined calibration schema for the antenna losses. This reprocessing has allowed the assessment of an improved performance benchmark. An overview of the results and the progress achieved in both calibration and image reconstruction is presented in this contribution. •Review of 5years of SMOS instrument performance and in flight calibration.•Level-1 processor enhancements and quantification of these.•On-going research on calibration and image reconstruction further improvements.
ISSN:0034-4257
1879-0704
DOI:10.1016/j.rse.2016.02.036