Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3624501b&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 24, CiteID L24501
Physics
4
Cryosphere: Sea Ice (4540), Cryosphere: Remote Sensing, Cryosphere: Properties, Cryosphere: General Or Miscellaneous
Scientific paper
In September 2009 we observed a much different sea icescape in the Southern Beaufort Sea than anticipated, based on remotely sensed products. Radarsat derived ice charts predicted 7 to 9 tenths multi-year (MY) or thick first-year (FY) sea ice throughout most of the Southern Beaufort Sea in the deep water of the Canada Basin. In situ observations found heavily decayed, very small remnant MY and FY floes interspersed with new ice between floes, in melt ponds, thaw holes and growing over negative freeboard older ice. This icescape contained approximately 25% open water, predominantly distributed in between floes or in thaw holes connected to the ocean below. Although this rotten ice regime was quite different that the expected MY regime in terms of ice volume and strength, their near-surface physical properties were found to be sufficiently alike that their radiometric and scattering characteristics were almost identical.
Asplin Matthew G.
Barber David G.
de Abreu Roger
Galley Ryan
Gupta Mukesh
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