Azimuthal Modulation of C-Band Scatterometer Over Southern Ocean Sea Ice

In a continuing evaluation of the ERS-1 C-band scatterometer as a tool for studying polar sea ice, the authors evaluate the azimuthal modulation characteristics of Antarctic sea ice. ERS-1 AMI scatterometer mode data sets from several study regions dispersed in the Antarctic seasonal sea ice pack ar...

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Bibliographic Details
Main Authors: Long, David G., Early, David S.
Format: Text
Language:English
Published: BYU ScholarsArchive 1997
Subjects:
backscatter
oceanographic regions
oceanographic techniques
radar cross-sections
remote sensing by radar
sea ice
water
spaceborne radar
synthetic aperture radar
Electrical and Computer Engineering
Antarctic
Southern Ocean
The Antarctic
Antarc*
ice pack
Sea ice
Online Access:https://scholarsarchive.byu.edu/facpub/662
https://scholarsarchive.byu.edu/context/facpub/article/1661/viewcontent/IR_CISOPTR_662.pdf
Description
Summary:In a continuing evaluation of the ERS-1 C-band scatterometer as a tool for studying polar sea ice, the authors evaluate the azimuthal modulation characteristics of Antarctic sea ice. ERS-1 AMI scatterometer mode data sets from several study regions dispersed in the Antarctic seasonal sea ice pack are evaluated for azimuthal modulation. When appropriate, the incidence angle dependence is estimated and removed in a study region before determining whether azimuthal modulation is present in the data. Other comparisons are made using the fore and aft beam measurement difference. The results show that over the ice pack, azimuthal modulation is less than 1 dB at the scale of observation of the ERS-1 C-band scatterometer.

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