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Authors: Bianchi, C.* 
Forieri, A.* 
Tabacco, I. E.* 
Title: Electromagnetic reflecting properties of sub-ice surfaces
Journal: Annals of Glaciology 
Series/Report no.: / 39 (2004)
Publisher: International Glaciological Society
Issue Date: 2004
Keywords: Bedrock-topography
Ice sheet
Subject Classification02. Cryosphere::02.02. Glaciers::02.02.03. Geomorphology 
02. Cryosphere::02.02. Glaciers::02.02.04. Ice 
02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 
Abstract: The power strength of the radio-echo signal coming from reflecting sub-ice surfaces is used to determine the nature of the reflecting surface, i.e. rock, water or sea water. Electromagnetic analysis shows that the amplitude variations detected by radio-echo sounding are mainly due to the nature of the interface as well as the concave or convex shape of the reflectors. In this paper, some relevant profiles showing the power variations due to the different nature of the interface and the shape of the reflectors are presented. These results are important both for surface shape determination and for subglacial lake detection.
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