Faraday rotation is dynamically computed from L-band radiometric data acquired by the Soil Moisture and Ocean Salinity satellite. Improved full polarimetric image reconstruction and smart spatiotemporal filtering are used to obtain good estimations of Faraday rotation, which compare very well with the values theoretically predicted from available ionosphere and geomagnetic field data.
Corbella, I. [et al.]. Faraday rotation retrieval using SMOS radiometric data. "IEEE Geoscience and Remote Sensing Letters", 01 Març 2015, vol. 12, núm. 3, p. 458-461.