Deriving VTEC Maps from SMOS Radiometric Data

Remote Sensing

Nuria Duffo¹  Ignasi Corbella¹  Israel Durán¹  Francesc Torres¹  Roselena Rubino¹  Manuel Martín-Neira²  Verónica González-Gambau³ 

[1] CommSensLab Research Group, Polytechnic University of Catalonia, c/Jordi Girona 1-3, 08034 Barcelona, Spain;European Space Research and Technology Center, European Space Agency, 2200 AG Noordwijk, The Netherlands;Physical Oceanography Department, Institute of Marine Sciences, ICM-CSIC and Barcelona Expert Center, Pg. Marítim de la Barceloneta 37-49, 08034 Barcelona, Spain;

关键词: faraday rotation angle (FRA);    vertical total electron content (VTEC);    L-band;    radiometry;    Interferometry;    soil moisture;   

DOI  :  10.3390/rs12101604

来源: DOAJ

【 摘 要 】

In this work, a new methodology is proposed in order to derive vertical total electron content (VTEC) maps from the radiometric measurements of the Soil Moisture and Ocean Salinity (SMOS) mission as an alternative approach to those based on external databases and models. This approach uses spatiotemporal filtering techniques with optimized filters to be robust against the thermal noise and image reconstruction artifacts present in SMOS images. It is also possible to retrieve the Faraday rotation angle from the recovered VTEC maps in order to correct the effect that it causes in the SMOS brightness temperatures.

【 授权许可】

Unknown