Collaborative Research: Byrd Glacier Flow Dynamics
This award supports a project to understand the flow dynamics of large, fast-moving outlet glaciers that drain the East Antarctic Ice Sheet. The project includes an integrated field, remote sensing and modeling study of Byrd Glacier which is a major pathway for the discharge of mass from the East An...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:orsp_reports-1344 2023-05-15T13:36:42+02:00 Collaborative Research: Byrd Glacier Flow Dynamics Hamilton, Gordon S. 2015-02-06T08:00:00Z application/pdf https://digitalcommons.library.umaine.edu/orsp_reports/330 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1344&context=orsp_reports unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/orsp_reports/330 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1344&context=orsp_reports This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). University of Maine Office of Research Administration: Grant Reports Antarctic Glaciology and Geophysics Climate Change Climate Glaciology text 2015 ftmaineuniv 2023-03-12T19:16:56Z This award supports a project to understand the flow dynamics of large, fast-moving outlet glaciers that drain the East Antarctic Ice Sheet. The project includes an integrated field, remote sensing and modeling study of Byrd Glacier which is a major pathway for the discharge of mass from the East Antarctic Ice Sheet (EAIS) to the ocean. Recent work has shown that the glacier can undergo short-lived but significant changes in flow speed in response to perturbations in its boundary conditions. Because outlet glacier speeds exert a major control on ice sheet mass balance and modulate the ice sheet contribution to sea level rise, it is essential that their sensitivity to a range of dynamic processes is properly understood and incorporated into prognostic ice sheet models. The intellectual merit of the project is that the results from this study will provide critically important information regarding the flow dynamics of large EAIS outlet glaciers. The proposed study is designed to address variations in glacier behavior on timescales of minutes to years. A dense network of global positioning satellite (GPS) instruments on the grounded trunk and floating portions of the glacier will provide continuous, high-resolution time series of horizontal and vertical motions over a 26-month period. These results will be placed in the context of a longer record of remote sensing observations covering a larger spatial extent, and the combined datasets will be used to constrain a numerical model of the glacier's flow dynamics. The broader impacts of the work are that this project will generate results which are likely to be a significant component of next-generation ice sheet models seeking to predict the evolution of the Antarctic Ice Sheet and future rates of sea level rise. The most recent report from the Intergovernmental Panel on Climate Change (IPCC) highlights the imperfect understanding of outlet glacier dynamics as a major obstacle to the production of an accurate sea level rise projections. This project will provide ... Text Antarc* Antarctic Byrd Glacier Ice Sheet The University of Maine: DigitalCommons@UMaine Antarctic The Antarctic East Antarctic Ice Sheet Byrd Byrd Glacier ENVELOPE(160.333,160.333,-80.250,-80.250) |
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Open Polar |
collection |
The University of Maine: DigitalCommons@UMaine |
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ftmaineuniv |
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unknown |
topic |
Antarctic Glaciology and Geophysics Climate Change Climate Glaciology |
spellingShingle |
Antarctic Glaciology and Geophysics Climate Change Climate Glaciology Hamilton, Gordon S. Collaborative Research: Byrd Glacier Flow Dynamics |
topic_facet |
Antarctic Glaciology and Geophysics Climate Change Climate Glaciology |
description |
This award supports a project to understand the flow dynamics of large, fast-moving outlet glaciers that drain the East Antarctic Ice Sheet. The project includes an integrated field, remote sensing and modeling study of Byrd Glacier which is a major pathway for the discharge of mass from the East Antarctic Ice Sheet (EAIS) to the ocean. Recent work has shown that the glacier can undergo short-lived but significant changes in flow speed in response to perturbations in its boundary conditions. Because outlet glacier speeds exert a major control on ice sheet mass balance and modulate the ice sheet contribution to sea level rise, it is essential that their sensitivity to a range of dynamic processes is properly understood and incorporated into prognostic ice sheet models. The intellectual merit of the project is that the results from this study will provide critically important information regarding the flow dynamics of large EAIS outlet glaciers. The proposed study is designed to address variations in glacier behavior on timescales of minutes to years. A dense network of global positioning satellite (GPS) instruments on the grounded trunk and floating portions of the glacier will provide continuous, high-resolution time series of horizontal and vertical motions over a 26-month period. These results will be placed in the context of a longer record of remote sensing observations covering a larger spatial extent, and the combined datasets will be used to constrain a numerical model of the glacier's flow dynamics. The broader impacts of the work are that this project will generate results which are likely to be a significant component of next-generation ice sheet models seeking to predict the evolution of the Antarctic Ice Sheet and future rates of sea level rise. The most recent report from the Intergovernmental Panel on Climate Change (IPCC) highlights the imperfect understanding of outlet glacier dynamics as a major obstacle to the production of an accurate sea level rise projections. This project will provide ... |
format |
Text |
author |
Hamilton, Gordon S. |
author_facet |
Hamilton, Gordon S. |
author_sort |
Hamilton, Gordon S. |
title |
Collaborative Research: Byrd Glacier Flow Dynamics |
title_short |
Collaborative Research: Byrd Glacier Flow Dynamics |
title_full |
Collaborative Research: Byrd Glacier Flow Dynamics |
title_fullStr |
Collaborative Research: Byrd Glacier Flow Dynamics |
title_full_unstemmed |
Collaborative Research: Byrd Glacier Flow Dynamics |
title_sort |
collaborative research: byrd glacier flow dynamics |
publisher |
DigitalCommons@UMaine |
publishDate |
2015 |
url |
https://digitalcommons.library.umaine.edu/orsp_reports/330 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1344&context=orsp_reports |
long_lat |
ENVELOPE(160.333,160.333,-80.250,-80.250) |
geographic |
Antarctic The Antarctic East Antarctic Ice Sheet Byrd Byrd Glacier |
geographic_facet |
Antarctic The Antarctic East Antarctic Ice Sheet Byrd Byrd Glacier |
genre |
Antarc* Antarctic Byrd Glacier Ice Sheet |
genre_facet |
Antarc* Antarctic Byrd Glacier Ice Sheet |
op_source |
University of Maine Office of Research Administration: Grant Reports |
op_relation |
https://digitalcommons.library.umaine.edu/orsp_reports/330 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1344&context=orsp_reports |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
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1766082628650270720 |