Direction-of-Arrival Analysis of Airborne Ice Depth Sounder Data

In this paper, we analyze the direction-of arrival(DOA) of the ice-sheet data collected over Jakobshavn Glacier with the airborne Multichannel Radar Depth Sounder (MCRDS) during the 2006 field season. We extracted weak ice–bed echoes buried in signals scattered by the rough surface of the fast-flowi...

Full description

Bibliographic Details
Published in:IEEE Transactions on Geoscience and Remote Sensing
Main Authors: Nielsen, Ulrik, Yan, Jie-Bang, Gogineni, Sivaprasad, Dall, Jørgen
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
Airborne radar
Direction-of-arrival (DOA) estimation
Glacier
Ice sounding
Radar remote sensing
Surface scattering
Ice Sheet
Jakobshavn
Online Access:https://orbit.dtu.dk/en/publications/c4d87b37-72ae-4ca8-af2e-91dabfae4aae
https://doi.org/10.1109/TGRS.2016.2639510
https://backend.orbit.dtu.dk/ws/files/128492497/paper_postprint.pdf
Description
Summary:In this paper, we analyze the direction-of arrival(DOA) of the ice-sheet data collected over Jakobshavn Glacier with the airborne Multichannel Radar Depth Sounder (MCRDS) during the 2006 field season. We extracted weak ice–bed echoes buried in signals scattered by the rough surface of the fast-flowing Jakobshavn Glacier by analyzing the DOA of signals received with a five-element receive-antenna array. This allowed us to obtain ice thickness information, which is a key parameter when generating bed topography of glaciers. We also estimated ice–bed roughness and bed slope from the combined analysis of the DOA and radar waveforms. The bed slope is about 8° and the roughness in terms of rms slope is about 16°.

Similar Items