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Surface-Based Scatterometer Results of Arctic Sea Ice

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3 Author(s)
Onstott, R.G. ; Remote Sensing Laboratory, University of Kansas Center for Research, Inc., KS 66045 ; Moore, R.K. ; Weeks, W.F.

Radar backscatter measurements were made of shorefast sea ice near Point Barrow, AK, in May 1977, with a surface-based FM-CW scatterometer that swept from 1-2 GHz and from 8.5-17.5 GHz. The 1-2 GHz measurements showed that thick first-year and multiyear ice cannot be distinguished at 10-70° incidence angles, but that undeformed sea ice can be discriminated from pressure ridges and lake ice. Results also indicate that frequencies between 8-18 GHz have the ability to discriminate between thick first-year, multiyear, and lake ice. Cross polarization was found to be a better discriminator than like polarization. In addition, at these latter frequencies the differential scattering cross section ¿° was found to have an approximately linearly increasing frequency response.

Published in:

Geoscience Electronics, IEEE Transactions on  (Volume:17 ,  Issue: 3 )

Date of Publication:

July 1979

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