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SMOS salinity retrievals enhancement in coastal areas by joint application of nodal sampling and corrected correlator efficiency

AuthorsGonzález, Verónica ; Olmedo, Estrella ; Martínez, Justino ; Turiel, Antonio ; Durán, I.
Issue DateApr-2016
PublisherInstitute of Electrical and Electronics Engineers
Citation14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad): 135-138 (2016)
AbstractThis work is focused on the quality improvement of ESA's SMOS (Soil Moisture and Ocean Salinity) salinity retrievals, paying special attention to coastal regions. Two correction techniques have been applied to enhance the quality of brightness temperatures: the nodal sampling for the reduction of Gibbs-like contamination and the correction of residual amplitude calibration errors for the mitigation of systematic biases close to land. The application of these techniques leads to improvements in salinity retrievals not only in open ocean, but also in strongly contaminated coastal areas. Comparisons to in-situ salinity estimates show that salinities retrieved from the corrected brightness temperatures are closer to zero bias and present a reduced standard deviation with respect to those retrievals from the current SMOS brightness temperatures
Description14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 11-14 April 2016, Espoo, Finland.-- 4 pages
Publisher version (URL)https://dx.doi.org/10.1109/MICRORAD.2016.7530521
Identifiersdoi: 10.1109/MICRORAD.2016.7530521
isbn: 978-1-5090-2952-5
isbn: 978-1-5090-2951-8
Appears in Collections:(ICM) Libros y partes de libros
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