The thermal regime of sub-polar glaciers mapped by multi-frequency radio-echo sounding

• Published in: Journal of glaciology Vol. 42; no. 140; pp. 23 - 32
• Main Authors: Björnsson, Helgi, Gjessing, Yngvar, Hamran, Svein-Erik, Hagen, Jon Ove, LiestøL, Olav, Pálsson, Finnur, Erlingsson, Björn
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 1996; International Glaciological Society
• Subjects: Earth, ocean, space; Exact sciences and technology; External geophysics; Snow. Ice. Glaciers; Svalbard; Arctic Region; Glacier; Basal layer; Radio echo; Surface layer; Radar

Radio-echo soundings provide an effective tool for mapping the thermal regimes of polythermal glaciers on a regional scale. Radar signals of 320–370 MHz penetrate ice at sub-freezing temperatures but are reflected from the top of layers of ice which are at the melting point and contain water. Radar...