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Bistatic scattering of global positi...

Rivas, Maria Belmonte.

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Bistatic scattering of global positioning system signals from Arctic sea ice.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Bistatic scattering of global positioning system signals from Arctic sea ice./
Author:	Rivas, Maria Belmonte.
Description:	217 p.
Notes:	Advisers: Penina Axelrad; James Maslanik.
Contained By:	Dissertation Abstracts International68-07B.
Subject:	Engineering, Aerospace. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3273661
ISBN:	9780549138044

Bistatic scattering of global positioning system signals from Arctic sea ice.
Rivas, Maria Belmonte.

Bistatic scattering of global positioning system signals from Arctic sea ice. - 217 p.

Advisers: Penina Axelrad; James Maslanik.

Thesis (Ph.D.)--University of Colorado at Boulder, 2007.

This work evaluates the potential use of scattered Global Positioning System (GPS) signals for the retrieval of information related to the presence and condition of the Arctic sea ice cover.

ISBN: 9780549138044Subjects--Topical Terms:

1018395
Engineering, Aerospace.

Bistatic scattering of global positioning system signals from Arctic sea ice.
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020 $a 9780549138044
035 $a (UMI)AAI3273661
035 $a AAI3273661
040 $a UMI $c UMI
100 1 $a Rivas, Maria Belmonte. $3 1264111
245 1 0 $a Bistatic scattering of global positioning system signals from Arctic sea ice.
300 $a 217 p.
500 $a Advisers: Penina Axelrad; James Maslanik.
500 $a Source: Dissertation Abstracts International, Volume: 68-07, Section: B, page: 4623.
502 $a Thesis (Ph.D.)--University of Colorado at Boulder, 2007.
520 $a This work evaluates the potential use of scattered Global Positioning System (GPS) signals for the retrieval of information related to the presence and condition of the Arctic sea ice cover.
520 $a Although the combined satellite microwave record over the period 1979 to 2006 indicates that the Arctic sea ice extent has declined for every month, evidence for accompanying reductions in ice thickness has been hampered by the poor separability of the sea ice categories based on available active and passive measurements.
520 $a Using data collected from an airborne platform flying over the Beaufort, Bering and Chukchi Seas during the month of March in 2003, a geophysical model function is fit to scattered GPS waveforms to estimate parameters such as the L-band dielectric permittivity of the surface and its large scale roughness. These products are compared satisfactorily against independent measurements of roughness provided by a LIDAR surface profiler and a reference classification of sea ice types obtained from the simultaneous analysis of polarimetric brightness temperatures at 11, 19 and 37 GHz, C-band radar backscatter and visible/infrared imagery. We find that the ability of GPS derived permittivities to delineate the extent of the sea ice cover and separate the thin ice classes matches that of the currently operational radiometers, and that GPS derived roughness measurements provide improved separability of the thick ice classes, along with additional information about the deformation processes that affect the Arctic cover.
590 $a School code: 0051.
650 4 $a Engineering, Aerospace. $3 1018395
650 4 $a Remote Sensing. $3 1018559
690 $a 0538
690 $a 0799
710 2 $a University of Colorado at Boulder. $b Aerospace Engineering. $3 1030473
773 0 $t Dissertation Abstracts International $g 68-07B.
790 $a 0051
790 1 0 $a Axelrad, Penina, $e advisor
790 1 0 $a Maslanik, James, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3273661