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ERS-1 Investigations of Southern Ocean Sea Ice Geophysics Using Combined Scatterometer and SAR ImagesCoregistered ERS-1 SAR and Scatterometer data are presented for the Weddell Sea, Antarctica. Calibrated image backscatter statistics are extracted from data acquired in regions where surface measurements were made during two extensive international Weddell Sea experiments in 1992. Changes in summer ice-surface conditions, due to temperature and wind, are shown to have a large impact on observed microwave backscatter values. Winter calibrated backscatter distributions are also investigated as a way of describing ice thickness conditions in different location during winter. Coregistered SAR and EScat data over a manned drifting ice station are used to illustrate the seasonal signature changes occurring during the fall freeze-up transition.
Document ID
20060038513
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Drinkwater, M.
Early, D.
Long, D.
Date Acquired
August 23, 2013
Publication Date
August 8, 1994
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Other
Keywords
sea-ice Weddell Sea ice formation