Ice bed topography mapping using InSAR and tomographic processes

Author

Allen, Chris ; Blake, William ; Leuschen, Carl ; Paden, John ; Gogineni, Prasad ; Dahl-Jensen, Dorthe ; Harish, Ayyangar

Author_Institution

Center for Remote Sensing of Ice Sheets (CReSIS), Lawrence, KS, USA

fYear

2011

fDate

23-27 May 2011

Firstpage

793

Lastpage

797

Abstract

Three-dimensional topographic maps of the bed 2.5 km beneath the Greenland ice sheet in a 10-km × 10-km region centered on the NEEM drill site (77.45°N 51.06°W) are produced using different processes - interpolation, interferometry, and tomography. Descriptions of the data collection and processing are followed by the terrain maps which are compared. Effects of basal slope and roughness on basal backscattering were modeled in an attempt to highlight the contribution of bed wetness variations in basal SAR intensity maps.

Keywords

radar interferometry; synthetic aperture radar; terrain mapping; topography (Earth); 3D topographic maps; InSAR; NEEM drill site; basal backscattering; bed wetness variations; data collection; depth 2.5 km; ice bed topography mapping; interferometry; interpolation; synthetic aperture radar; terrain maps; Backscatter; Ice; Radar tracking; Rough surfaces; Surface roughness; Tomography; InSAR; VHF-band; depth sounding; multi-channel; tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (RADAR), 2011 IEEE

Conference_Location

Kansas City, MO

ISSN

1097-5659

Print_ISBN

978-1-4244-8901-5

Type

conf

DOI

10.1109/RADAR.2011.5960646

Filename

5960646