Electromagnetic reflecting properties of sub-ice surfaces

• Main Authors: Bianchi, C., Forieri, A., Tabacco, I. E.
• Other Authors: Bianchi, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Forieri, A.; Sezione Geofisica, Università di Milano, Via Cicognara 7, I-20129 Milan, Italy, Tabacco, I. E.; Sezione Geofisica, Università di Milano, Via Cicognara 7, I-20129 Milan, Italy, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Sezione Geofisica, Università di Milano, Via Cicognara 7, I-20129 Milan, Italy
• Format: Article in Journal/Newspaper
• Language: English
• Published: International Glaciological Society 2004
• Subjects: Bedrock-topography; Ice sheet; 02. 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; Annals of Glaciology; Ice Sheet
• Online Access: http://hdl.handle.net/2122/4178

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. Published 9-12 3.8. Geofisica per l'ambiente JCR Journal reserved