Ice Dynamics and Surface Glaciology along US ITASE Traverse Routes in East Antarctica
Ice Dynamics and Surface Glaciology along US ITASE Traverse Routes in East Antarctica
批准号:
0440792
负责人:
Gordon Hamilton
金额:
$34.55万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2005
资助国家:
美国
项目状态:
已结题
起止时间:
2005-09-01 至 2011-08-31
中文摘要
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英文摘要
This award supports a series of field measurements that will improve our understanding of the East Antarctic ice sheet. The objectives of this project are to take advantage of the overland traverse logistics framework provided by US ITASE and to collaborate with other US ITASE investigators to calculate rates of ice sheet thickness change (mass balance) on domes, along elevation contours and along flow lines in East Antarctica using precise global positioning system methods. In addition, the variability (both spatial and temporal) in snow accumulation rates will be assessed using shallow ice cores and ground-penetrating radar profiling, and will provide the capability to deduce true past climate variation in accumulation rates in ~200-year long ice core records by measuring ice motion and upglacier gradients in accumulation rate. Study patterns and causes of the onset of streaming flow in the catchments of selected large outlet glaciers draining through the Transantarctic Mountains will also be determined. The work will be conducted along the proposed US ITASE traverse route from Taylor Dome to South Pole. This route travels across the East Antarctic plateau, roughly parallel to the Transantarctic Mountains. Orthogonal satellite traverses are planned, each of which will follow a flow line of selected major outlet glaciers. The expected results include mass balance determinations for the Ross Ice Shelf sector of the East Antarctic Ice Sheet, an improved snow accumulation map for portions of East Antarctica, the deconvolution of ice dynamics effects from climate effects in ice core records, and an analysis of glaciological conditions near the onset of streaming flow leading to large outlet glaciers. The broader impacts of the proposed work include the collaboration with a multidisciplinary group of polar scientists, support of a graduate student and the production of results that will lead to an improved understanding of the Earth system from which sound planning and policy decisions can be based.
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负责人:Gordon Hamilton
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批准号:0710891
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Collaborative Research: Norwegian-United States IPY Scientific Traverse: Climate Variability and Glaciology in East Antarctica
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批准号:0538422
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资助金额:$24.98万
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财政年份:2007
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负责人:Gordon Hamilton
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Glaciology of Blue Ice Areas in Antarctica
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批准号:0229245
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资助金额:$4.38万
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财政年份:2003
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负责人:Gordon Hamilton
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Satellite Remote Sensing of Glaciers and Ice Caps in Svalbard, Eurasian High Arctic
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批准号:0221292
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项目类别:Standard Grant
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资助金额:$18.24万
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财政年份:2002
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负责人:Gordon Hamilton
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依托单位:
Mass Balance and Accumulation Rate Along US ITASE Routes
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批准号:0196441
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项目类别:Continuing Grant
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资助金额:$28.09万
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财政年份:2000
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负责人:Gordon Hamilton
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依托单位:
Mass Balance and Accumulation Rate Along US ITASE Routes
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批准号:9815110
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项目类别:Continuing grant
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资助金额:$0.0万
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财政年份:1999
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负责人:Gordon Hamilton
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依托单位:
Satellite Image Analyses for US ITASE Route Selection and Sampling Strategy
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批准号:9818513
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财政年份:1998
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负责人:Gordon Hamilton
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依托单位:
Ice Sheet Mass Balance Using GPS Measurements
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批准号:9419396
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项目类别:Standard Grant
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资助金额:$21.74万
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财政年份:1995
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负责人:Gordon Hamilton
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依托单位:
Investigation of a Step Feature near the Skiway on McMurdo Ice Shelf, Antarctica
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批准号:9528608
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资助金额:$0.0万
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财政年份:1995
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依托单位:
Support of the National Academy of Sciences' Ocean Sciences Board (Osb)
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批准号:8203762
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项目类别:Interagency Agreement
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资助金额:$7.0万
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财政年份:1982
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负责人:Gordon Hamilton
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依托单位:
Support of the 1982 Joint Oceanographic Assembly Travel Grants Program
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批准号:8117669
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项目类别:Interagency Agreement
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资助金额:$2.4万
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财政年份:1982
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负责人:Gordon Hamilton
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依托单位:
Dissertation Symposium on Chemical Oceanography, February 1981
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批准号:8100651
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项目类别:Interagency Agreement
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资助金额:$1.67万
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财政年份:1980
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负责人:Gordon Hamilton
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依托单位:
Support of the Ocean Sciences Board, National Academy of Sciences
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批准号:8008157
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项目类别:Interagency Agreement
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资助金额:$2.5万
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财政年份:1980
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负责人:Gordon Hamilton
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依托单位:
Symposium: Dissertation Chemical Oceanography
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批准号:7920653
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项目类别:Interagency Agreement
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资助金额:$1.6万
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财政年份:1979
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负责人:Gordon Hamilton
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依托单位:
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批准号:
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项目类别:省市级项目
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资助金额:--
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批准年份:2023
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负责人:
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依托单位: