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—Microwave radiometry at low frequencies (L-band: 1.4 GHz, 21 cm) is an established technique for estimating surface soil moisture and sea surface salinity with a suitable sensitivity. However, from space, large antennas (several meters) are required to achieve an adequate spatial resolution at L-band. So as to reduce the problem of putting into orbit a(More)
This satellite mission will use new algorithms to try to forecast weather and estimate climate change from satellite measurements of the Earth's surface. ABSTRACT | It is now well understood that data on soil moisture and sea surface salinity (SSS) are required to improve meteorological and climate predictions. These two quantities are not yet available(More)
This paper aims at studying the quality of the sea sur­ face salinity (SSS) retrieved from Soil Moisture and Ocean Salinity (SMOS) data in coastal areas, These al'eas are characterized by strong and variable SSS gradients [several practical salinity units (psu)] on relatively small scales: the extent of river plumes is highly variable, typically at(More)