Title :
L-band brightness temperature of ice sheets in Antarctica: emission modelling, ionospheric contribution and temporal stability
Author :
Floury, Nicolas ; Drinkwater, Mark ; Witasse, Olivier
Author_Institution :
Electromagn. Div., Eur. Space Agency, Noordwijk, Netherlands
Abstract :
The size, structure, spatial homogeneity and temporal thermal stability of some regions in Antarctica such as Dome-C, make them good candidates for the external calibration or validation of upcoming spaceborne L-band radiometers such as SMOS. As experimental observations are lacking at this frequency, an electromagnetic modelling approach is applied to qualitatively assess the potential of these areas.
Keywords :
calibration; geophysical equipment; geophysical techniques; glaciology; oceanographic equipment; oceanographic techniques; radiometers; radiometry; remote sensing; terrain mapping; 0.39 to 1.55 GHz; Antarctica; L-band; SMOS; UHF; brightness temperature; calibration; electromagnetic modelling; geophysical measurement technique; glaciology; ionosphere; land surface; microwave emission model; microwave radiometry; modelling; ocean; polar ice sheet; satellite remote sensing; sea surface; spaceborne radiometers; temporal stability; terrain mapping; thermal stability; validation; Antarctica; Brightness temperature; Dielectric constant; Electromagnetic modeling; Ice; L-band; Microwave radiometry; Ocean temperature; Snow; Thermal conductivity;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026458
