Bistatic Scattering of GPS Signals Off Arctic Sea Ice

Author

Rivas, Maria Belmonte ; Maslanik, James A. ; Axelrad, Penina

Author_Institution

Dept. of Aerosp. Eng. Sci., Univ. of Colorado, Boulder, CO, USA

Volume

48

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

1548

Lastpage

1553

Abstract

This paper evaluates the potential of a global positioning system (GPS) bistatic radar for the retrieval of information concerning the presence and condition of sea ice cover. For this purpose, the permittivity and roughness of a ground scattering target at L-band are extracted from reflected GPS waveforms collected from an airborne platform using the Kirchhoff approximation for the surface cross section. The retrieved GPS estimates are then evaluated against collocated measurements of surface roughness obtained from a lidar profiler and a reference classification of sea ice types inferred from a multisensor data set that includes polarimetric microwave emissions, RADARSAT backscatter, and Moderate Resolution Imaging Spectroradiometer infrared/visible imagery.

Keywords

Global Positioning System; electromagnetic wave scattering; oceanographic regions; oceanographic techniques; optical radar; permittivity; radiometry; remote sensing by radar; sea ice; surface roughness; Arctic sea ice; GPS bistatic radar; Global Positioning System; Kirchhoff approximation; L-band radar; MODIS infrared/visible imagery; Moderate Resolution Imaging Spectroradiometer; RADARSAT backscatter; bistatic scattering; information retrieval; lidar profiler; multisensor data; permittivity; polarimetric microwave emissions; reference classification; sea ice cover; surface cross section; surface roughness; Bistatic radar; electromagnetic scattering; global positioning system (GPS); sea ice;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2009.2029342

Filename

5256254