Inferring ice-flow directions from single ice-sheet surface images using the Radon transform

We present a new method for extracting the direction of surface flow for ice sheets, based onthe detection of flow-induced features that are visible in satellite imagery. The orientation of linearfeatures is determined using a Radon transform and only requires a single image. The technique isdemonst...

Full description

Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Roberts, JL, Warner, RC, Treverrow, A
Format: Article in Journal/Newspaper
Language:English
Published: Int Glaciol Soc 2013
Subjects:
Earth Sciences
Physical Geography and Environmental Geoscience
Glaciology
East Antarctica
Antarc*
Antarctica
Ice Sheet
Journal of Glaciology
Online Access:https://doi.org/10.3189/2013JoG12J042
http://ecite.utas.edu.au/83215
Description
Summary:We present a new method for extracting the direction of surface flow for ice sheets, based onthe detection of flow-induced features that are visible in satellite imagery. The orientation of linearfeatures is determined using a Radon transform and only requires a single image. The technique isdemonstrated by applying it to the RADARSAT mosaic of Antarctica, over the Lambert GlacierAmery IceShelf region of East Antarctica. Comparisons with both existing flow-direction fields and tracedstreamlines over the same area provide an evaluation of the method. We also illustrate its application toLandsat 7 imagery.

Similar Items