Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry
Outlet glaciers undergo rapid spatial and temporal changes in flow velocity during calving events. Observing such changes requires both high temporal and high spatial resolution methods, something now possible with terrestrial radar interferometry. While a single such radar provides line-of-sight ve...
Main Authors: | , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Digital Commons @ University of South Florida
2017
|
Subjects: | |
Online Access: | https://digitalcommons.usf.edu/geo_facpub/1525 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=2500&context=geo_facpub |
id |
ftunisfloridatam:oai:digitalcommons.usf.edu:geo_facpub-2500 |
---|---|
record_format |
openpolar |
spelling |
ftunisfloridatam:oai:digitalcommons.usf.edu:geo_facpub-2500 2023-05-15T16:56:51+02:00 Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry Voytenko, Denis Dixon, Timothy H. Holland, David M. Cassotto, Ryan Howat, Ian M. Fahnestock, Mark A. Truffer, Martin De La Pena, Santiago 2017-08-01T07:00:00Z application/pdf https://digitalcommons.usf.edu/geo_facpub/1525 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=2500&context=geo_facpub unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/geo_facpub/1525 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=2500&context=geo_facpub http://creativecommons.org/licenses/by/4.0/ CC-BY School of Geosciences Faculty and Staff Publications glacier flow glacier geophysics glaciological instruments and methods Earth Sciences article 2017 ftunisfloridatam 2021-10-09T07:47:33Z Outlet glaciers undergo rapid spatial and temporal changes in flow velocity during calving events. Observing such changes requires both high temporal and high spatial resolution methods, something now possible with terrestrial radar interferometry. While a single such radar provides line-of-sight velocity, two radars define both components of the horizontal flow field. To assess the feasibility of obtaining the two-dimensional (2-D) flow field, we deployed two terrestrial radar interferometers at Jakobshavn Isbrae, a major outlet glacier on Greenland's west coast, in the summer of 2012. Here, we develop and demonstrate a method to combine the line-of-sight velocity data from two synchronized radars to produce a 2-D velocity field from a single (3 min) interferogram. Results are compared with the more traditional feature-tracking data obtained from the same radar, averaged over a longer period. We demonstrate the potential and limitations of this new dual-radar approach for obtaining high spatial and temporal resolution 2-D velocity fields at outlet glaciers. Article in Journal/Newspaper Jakobshavn Digital Commons University of South Florida (USF) |
institution |
Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
glacier flow glacier geophysics glaciological instruments and methods Earth Sciences |
spellingShingle |
glacier flow glacier geophysics glaciological instruments and methods Earth Sciences Voytenko, Denis Dixon, Timothy H. Holland, David M. Cassotto, Ryan Howat, Ian M. Fahnestock, Mark A. Truffer, Martin De La Pena, Santiago Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
topic_facet |
glacier flow glacier geophysics glaciological instruments and methods Earth Sciences |
description |
Outlet glaciers undergo rapid spatial and temporal changes in flow velocity during calving events. Observing such changes requires both high temporal and high spatial resolution methods, something now possible with terrestrial radar interferometry. While a single such radar provides line-of-sight velocity, two radars define both components of the horizontal flow field. To assess the feasibility of obtaining the two-dimensional (2-D) flow field, we deployed two terrestrial radar interferometers at Jakobshavn Isbrae, a major outlet glacier on Greenland's west coast, in the summer of 2012. Here, we develop and demonstrate a method to combine the line-of-sight velocity data from two synchronized radars to produce a 2-D velocity field from a single (3 min) interferogram. Results are compared with the more traditional feature-tracking data obtained from the same radar, averaged over a longer period. We demonstrate the potential and limitations of this new dual-radar approach for obtaining high spatial and temporal resolution 2-D velocity fields at outlet glaciers. |
format |
Article in Journal/Newspaper |
author |
Voytenko, Denis Dixon, Timothy H. Holland, David M. Cassotto, Ryan Howat, Ian M. Fahnestock, Mark A. Truffer, Martin De La Pena, Santiago |
author_facet |
Voytenko, Denis Dixon, Timothy H. Holland, David M. Cassotto, Ryan Howat, Ian M. Fahnestock, Mark A. Truffer, Martin De La Pena, Santiago |
author_sort |
Voytenko, Denis |
title |
Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
title_short |
Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
title_full |
Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
title_fullStr |
Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
title_full_unstemmed |
Acquisition of a 3 Min, Two-Dimensional Glacier Velocity Field with Terrestrial Radar Interferometry |
title_sort |
acquisition of a 3 min, two-dimensional glacier velocity field with terrestrial radar interferometry |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2017 |
url |
https://digitalcommons.usf.edu/geo_facpub/1525 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=2500&context=geo_facpub |
genre |
Jakobshavn |
genre_facet |
Jakobshavn |
op_source |
School of Geosciences Faculty and Staff Publications |
op_relation |
https://digitalcommons.usf.edu/geo_facpub/1525 https://digitalcommons.usf.edu/cgi/viewcontent.cgi?article=2500&context=geo_facpub |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766048039985741824 |