Title :
Impact of the Faraday rotation on the SMOS measurements over the dome C test site: A semi-empirical study
Author :
Brogioni, M. ; Macelloni, G. ; Romano, V. ; Tozzi, R. ; Drinkwater, Mark
Author_Institution :
Inst. of Appl. Phys., IFAC-CNR, Firenze, Italy
Abstract :
With the development of present and future low-frequency microwave missions (SMOS, Aquarius and SMAP), the need arises to estimate the effects of the ionosphere on the propagation of the electromagnetic waves. In this paper a methodology for assessing the contribution of the Faraday rotation to uncertainties in SMOS measurements over Antarctica is proposed. Particularly real TEC data and advanced geomagnetic filed model were used to compute the Faraday rotation. The obtained values demonstrate that the impact on the measured SMOS brightness temperature is in general very low reaching a maximum value of 0.2K.
Keywords :
Faraday effect; atmospheric temperature; ionospheric electromagnetic wave propagation; ionospheric techniques; snow; Antarctica; Aquarius; DOME C test site; Faraday rotation; SMAP; SMOS brightness temperature; TEC data; electromagnetic waves; geomagnetic filed model; ionosphere; low-frequency microwave missions; snow; Antarctica; Data models; Extraterrestrial measurements; Faraday effect; Ionosphere; Microwave radiometry; Rotation measurement; Antarctica; Faraday rotation; SMOS; snow;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2010 11th Specialist Meeting on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-8120-0
Electronic_ISBN :
978-1-4244-8121-7
DOI :
10.1109/MICRORAD.2010.5559596
