C-Band Polarimetric Coherences and Ratios for Discriminating Sea Ice Roughness

Simple item page
dc.contributor.authorGupta, Mukesh
dc.contributor.authorScharien, Randall K.
dc.contributor.authorBarber, David G.
dc.date.accessioned2014-08-14T06:53:44Z
dc.date.available2014-08-14T06:53:44Z
dc.date.issued2013-5-22
dc.date.updated2014-08-14T06:53:44Z
dc.description.abstractThe rapid decline of sea ice in the Arctic has resulted in a variable sea ice roughness that necessitates improved methods for efficient observation using high-resolution spaceborne radar. The utility of C-band polarimetric backscatter, coherences, and ratios as a discriminator of ice surface roughness is evaluated. An existing one-dimensional backscatter model has been modified to two-dimensions (2D) by considering deviation in the orientation (i.e., the slopes) in azimuth and range direction of surface roughness simultaneously as an improvement in the model. It is shown theoretically that the circular coherence () decreases exponentially with increasing surface roughness. The crosspolarized coherence () is found to be less sensitive to surface roughness, whereas the copolarized coherence () decreases at far-range incidence angles for all ice types. A complete validation of the adapted 2D model using direct measurements of surface roughness is suggested as an avenue for further research.
dc.description.versionPeer Reviewed
dc.identifier.citationMukesh Gupta, Randall K. Scharien, and David G. Barber, “C-Band Polarimetric Coherences and Ratios for Discriminating Sea Ice Roughness,” International Journal of Oceanography, vol. 2013, Article ID 567182, 13 pages, 2013. doi:10.1155/2013/567182
dc.identifier.doihttp://dx.doi.org/10.1155/2013/567182
dc.identifier.urihttp://hdl.handle.net/1993/23778
dc.language.rfc3066en
dc.rightsopen accessen_US
dc.rights.holderCopyright © 2013 Mukesh Gupta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleC-Band Polarimetric Coherences and Ratios for Discriminating Sea Ice Roughness
dc.typeJournal Article
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
IJOG.2013.567182.xml
Size:
6.81 KB
Format:
Extensible Markup Language
Description:
Download
Thumbnail Image
Name:
IJOG.2013.567182.pdf
Size:
3.43 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.17 KB
Format:
Item-specific license agreed to upon submission
Description:
Download
Collections
University of Manitoba Scholarship
Clayton H. Riddell Faculty of Environment, Earth, and Resources Scholarly Works