Title :
Microwave emission of snow in Alpine regions and the detection of surface hoar
Author :
Macelloni, Giovanni ; Paloscia, Simonetta ; Pampaloni, Paolo ; Ruisi, Roberto ; Tedesco, Marco ; Cagnati, A. ; Valt, M.
Author_Institution :
IROE, CNR, Florence, Italy
Abstract :
Microwave radiometric measurements of snow packs were carried out in various test sites, to study different snow cover conditions, from dry snow at high and low density, to wet snow, and lastly, to a typical surface layer composed of big hoar crystals. It has been shown that dual-frequency (10 and 37 GHz), dual polarized microwave data appear efficient in separating wet from dry snow and in identifying the presence of surface hoar, which is is of significant interest for the research on avalanche forecast
Keywords :
hydrological techniques; polarimetry; radiometry; remote sensing; snow; 10 GHz; 37 GHz; Alpine region; EHF; SHF; avalanche forecast; density; dry snow; dual frequency method; dual polarized microwave; frost; hydrology; measurement technique; microwave emission; microwave radiometry; remote sensing; snow conditions; snow cover; snowcover; snowpack; surface hoar; surface layer; wet snow; Brightness temperature; Crystals; Frequency; Microwave measurements; Microwave radiometry; Polarization; Rough surfaces; Snow; Springs; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.857337
