| 项目编号: | 1503907
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| 项目名称: | Unraveling the history of the Greenland Ice Sheet from its internal radiostratigraphy |
| 作者: | Michelle Koutnik
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| 承担单位: | University of Washington
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| 批准年: | 2014
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| 开始日期: | 2015-09-01
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| 结束日期: | 2018-08-31
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| 资助金额: | USD307324
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Polar
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| 英文关键词: | greenland ice sheet
; ice sheet
; history
; greenland
; ice-flow
; available ice-sheet-wide dated radiostratigraphy
; future continental-scale ice-flow modeling
; ice-penetrating radar
; ice evolution
; ice flow
; extensive radiostratigraphy
; ice-flow model
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| 英文摘要: | The internal structure of glaciers and ice sheets, revealed by ice-penetrating radars, has transformed our ability to understand ice evolution. Two investigators propose to use a recently developed compilation of available radar data from Greenland, in combination with ice-flow models, to increase understanding of the history of the Greenland Ice Sheet that will provide context for its response to current and future changes. This is the first time such a project is possible across most of the Greenland Ice Sheet to address how the climate and the ice sheet have changed over time.
The major objectives of the proposed work include: 1) validating inferences from the recently available ice-sheet-wide dated radiostratigraphy of the Greenland Ice Sheet against those from internal reflections mapped by targeted ground-based and airborne data collected along flowlines; 2) defining and applying strategies to use Greenland Ice Sheet radiostratigraphy; to constrain its history and to evaluate hypotheses regarding its evolution; 3) determining reconstructions of Greenland's past climate and ice flow that match the radiostratigraphy; and 4) providing a foundation for future continental-scale ice-flow modeling that will seek to assimilate an extensive radiostratigraphy. Broader impacts will include support of two early-career investigators, mentoring graduate and undergraduate students, public outreach, and incorporation of the research into formal classes. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93566
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Michelle Koutnik. Unraveling the history of the Greenland Ice Sheet from its internal radiostratigraphy. 2014-01-01.
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