Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3223405p&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 23, CiteID L23405
Other
6
Physical Properties Of Rocks, Physical Properties Of Rocks: General Or Miscellaneous, Radio Science: Remote Sensing
Scientific paper
Microwave emissivities have been calculated over the globe from satellite observations between 19 and 85 GHz with the Special Sensor Microwave/Imager (SSM/I). Unusually low and stable microwave emissivities are observed in Oman and Egypt over large regions. Spatial patterns of low emissivities are well correlated with the distribution of tertiary sediments. Dielectric measurements have been performed and confirm that carbonate rocks have high permittivities (higher than 8 as compared to typical values of 5 for other rocks or 2.5 for silicate sands) and this explains the observed low emissivities.
Munier Jean-Marie
Prigent Catherine
Ruffié Gilles
Thomas Bertrand
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