Title :
Estimating Snow Characteristics with Multifrequency Microwave Radiometry
Author :
Brogioni, M. ; Macelloni, G. ; Palchetti, E. ; Paloscia, S. ; Pampaloni, P. ; Pettinato, S. ; Santi, E. ; Cagnati, A. ; Crepaz, A.
Author_Institution :
Inst. of Appl. Phys., IFAC-CNR, Florence
Abstract :
Microwave radiometric measurements of snow pack were carried out with ground based sensors in winter 2007-2008. Data collected on dry snow, showed small fluctuations related to diurnal solar cycle and presented a time delay of microwave brightness temperatures with respect to the snow surface temperature. The measurement of these delays, together with a correlation analysis of the brightness and physical temperature of snow, made it possible estimating the thickness of layers that mostly contributed to microwave emission at 19 and 37 GHz. Simulations performed with IRIDE model were consistent with experimental data.
Keywords :
radiometry; snow; AD 2007 to 2008; IRIDE model; correlation analysis; diurnal solar cycle; dry snow; frequency 19 GHz to 37 GHz; ground based sensors; microwave brightness temperatures; multifrequency microwave radiometry; snow pack; snow surface temperature; time delay; Delay effects; Delay estimation; Fluctuations; Land surface temperature; Microwave measurements; Microwave radiometry; Microwave sensors; Sensor phenomena and characterization; Snow; Temperature sensors; Snow; microwave radiometry;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779367
