Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12
Abstract Monitoring the rate of ice flow into ice shelves is vital to understanding how, where and when mass changes occur in Antarctica. Previous observations of ice surface velocity indicate that the Amery Ice Shelf and tributary glaciers have been relatively stable over the period 1968 to 1999. T...
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crcambridgeupr:10.1017/s0954102015000231 2024-03-03T08:36:33+00:00 Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 Pittard, M.L. Roberts, J.L. Watson, C.S. Galton-Fenzi, B.K. Warner, R.C. Coleman, R. 2015 http://dx.doi.org/10.1017/s0954102015000231 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000231 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 27, issue 5, page 511-523 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 crcambridgeupr https://doi.org/10.1017/s0954102015000231 2024-02-08T08:39:49Z Abstract Monitoring the rate of ice flow into ice shelves is vital to understanding how, where and when mass changes occur in Antarctica. Previous observations of ice surface velocity indicate that the Amery Ice Shelf and tributary glaciers have been relatively stable over the period 1968 to 1999. This study measured the displacement of features on the ice surface over a sequence of Landsat 7 images separated by approximately one year and spanning 2004 to 2012 using the surface feature tracking software IMCORR. The focus is on the region surrounding the southern grounding zone of the Amery Ice Shelf and its primary tributary glaciers: the Fisher, Lambert and Mellor glaciers. No significant changes in surface velocity were observed over this period. Accordingly, the velocity fields from each image pair between 2004 and 2012 were used to synthesize an average velocity dataset of the Amery Ice Shelf region and to compare it to previously published velocity datasets and in situ global positioning system velocity observations. No significant change in ice surface velocities was found between 2004 and 2012 in the Amery Ice Shelf region, which suggests that it continues to remain stable. Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctic Science Antarctica Ice Shelf Ice Shelves Cambridge University Press Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Mellor ENVELOPE(-114.944,-114.944,60.714,60.714) Antarctic Science 27 5 511 523 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Pittard, M.L. Roberts, J.L. Watson, C.S. Galton-Fenzi, B.K. Warner, R.C. Coleman, R. Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Monitoring the rate of ice flow into ice shelves is vital to understanding how, where and when mass changes occur in Antarctica. Previous observations of ice surface velocity indicate that the Amery Ice Shelf and tributary glaciers have been relatively stable over the period 1968 to 1999. This study measured the displacement of features on the ice surface over a sequence of Landsat 7 images separated by approximately one year and spanning 2004 to 2012 using the surface feature tracking software IMCORR. The focus is on the region surrounding the southern grounding zone of the Amery Ice Shelf and its primary tributary glaciers: the Fisher, Lambert and Mellor glaciers. No significant changes in surface velocity were observed over this period. Accordingly, the velocity fields from each image pair between 2004 and 2012 were used to synthesize an average velocity dataset of the Amery Ice Shelf region and to compare it to previously published velocity datasets and in situ global positioning system velocity observations. No significant change in ice surface velocities was found between 2004 and 2012 in the Amery Ice Shelf region, which suggests that it continues to remain stable. |
format |
Article in Journal/Newspaper |
author |
Pittard, M.L. Roberts, J.L. Watson, C.S. Galton-Fenzi, B.K. Warner, R.C. Coleman, R. |
author_facet |
Pittard, M.L. Roberts, J.L. Watson, C.S. Galton-Fenzi, B.K. Warner, R.C. Coleman, R. |
author_sort |
Pittard, M.L. |
title |
Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
title_short |
Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
title_full |
Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
title_fullStr |
Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
title_full_unstemmed |
Velocities of the Amery Ice Shelf's primary tributary glaciers, 2004–12 |
title_sort |
velocities of the amery ice shelf's primary tributary glaciers, 2004–12 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/s0954102015000231 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102015000231 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) ENVELOPE(-114.944,-114.944,60.714,60.714) |
geographic |
Amery Amery Ice Shelf Mellor |
geographic_facet |
Amery Amery Ice Shelf Mellor |
genre |
Amery Ice Shelf Antarc* Antarctic Science Antarctica Ice Shelf Ice Shelves |
genre_facet |
Amery Ice Shelf Antarc* Antarctic Science Antarctica Ice Shelf Ice Shelves |
op_source |
Antarctic Science volume 27, issue 5, page 511-523 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102015000231 |
container_title |
Antarctic Science |
container_volume |
27 |
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5 |
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511 |
op_container_end_page |
523 |
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1792507322135740416 |