CGRG Bibliography of Canadian Geomorphology
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Author : Demuth, M.; Marshall, H-P.; Morris, E.; Burgess, D.; Bell, C.; Sekerka, J.; and Gray, L.
Date : 2007.
Title : High-resolution near-surface snow stratigraphy as inferred by ground-based broadband microwave radar measurements: Devon Ice Cap, Nunavut, Canada 2004-05, CryoSAT calibration campaign.
Publication : CMOS, CGU, AMS Congress 2007. "Air, Ocean, Earth and Ice on the Rock". May 28 - June 1, 2007. St. John's Congress Centre, Newfoundland and Labrador, Canada.
Issue :
Page(s) : S01-1B3 .6.
Abstract
Broadband microwave Frequency Modulated Continuous Wave (FMCW) radar measurements were made during the spring of 2005 and 2006, at the CryoSat validation site on Devon Ice Cap, Nunavut, Canada. Metal reflector experiments were performed by inserting a large metal plate into a snowpit, parallel to visually identified layer transitions. This allowed interpretation of the age of specific radar reflections which were relatively continuous in the region surrounding the study site (weak percolation facies). By mapping the snow depth to a given reflector, accumulation rate patterns over large areas can be estimated at high spatial resolution. Annual and average variability are studied using these estimates for the upper 2 meters, which corresponds to approximately 4-5 years of accumulation. The utility of complimentary neutron probe snow density measurements, 900 MHz pulse radar measurements, and digital photography is also explored.
Bibliography of Canadian Geomorphology