Geophysical Investigation of Seasonal Changes in the Basal Zone of Black Rapids Glaciers, Alaska
阿拉斯加黑急流冰川基底带季节变化的地球物理调查
基本信息
- 批准号:9122783
- 负责人:
- 金额:$ 28.34万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1992
- 资助国家:美国
- 起止时间:1992-07-15 至 1997-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award is for support of a program of high-resolution seismic reflection and radio-echo sounding on the surge-type Black Rapids Glacier, Alaska. Determination of changes in the structure of the glacier bed during seasonal fluctuations in velocity will be made. The measurements will be made at a location where a 100 to 400 % increase in speed is known to occur each year in the early melt season. Geophysical sensing of the basal zone will be performed before and during the speed-up. Surface motion and uplift, the discharge of water, solutes and sediment in the terminal stream, meteorological conditions, and water level in moulins will all be monitored. These measurements will allow the morphology of the glacier bed to be determined at times of differing amounts of basal motion, and thus provide valuable insight into the mechanisms of glacier and ice stream motion and the role of basal water.
该奖项是为了支持一个高分辨率地震项目, 涌浪型黑色急流上的反射和无线电回波探测 阿拉斯加的冰川 结构变化的确定 冰川床在速度季节性波动期间将 进行了测量将在一个100到100英里的地方进行。 400%的速度增加是众所周知的发生在每年的早期 融化季节 将对基底区进行地球物理探测, 在加速之前和加速过程中进行。 表面运动与 隆起,水,溶质和沉积物的排放 终端流,气象条件和水位, 所有冰川穴都将受到监控。 这些测量将允许 冰川床的形态将在 不同的基础运动量,从而提供有价值的 深入了解冰川和冰流运动的机制, 基础水的作用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Keith Echelmeyer其他文献
Keith Echelmeyer的其他文献
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{{ truncateString('Keith Echelmeyer', 18)}}的其他基金
Glacier Changes in Western North America: Effects on Sea Level and Climatic Implications
北美西部冰川变化:对海平面的影响和气候影响
- 批准号:
0327067 - 财政年份:2003
- 资助金额:
$ 28.34万 - 项目类别:
Standard Grant
Using Spatial and Temporal Variations of Ice Deformation to Study Basal Processes
利用冰变形的时空变化来研究基础过程
- 批准号:
0115819 - 财政年份:2001
- 资助金额:
$ 28.34万 - 项目类别:
Standard Grant
International Symposium on Fast Glacier Flow
快速冰川流国际研讨会
- 批准号:
0119714 - 财政年份:2001
- 资助金额:
$ 28.34万 - 项目类别:
Standard Grant
Fireweed Rock Glacier: Geophysical Survey and Flow Modeling
火草岩冰川:地球物理调查和流动模拟
- 批准号:
9806648 - 财政年份:1998
- 资助金额:
$ 28.34万 - 项目类别:
Standard Grant
A New Concept in Glacier Mass Balance
冰川质量平衡的新概念
- 批准号:
9707515 - 财政年份:1997
- 资助金额:
$ 28.34万 - 项目类别:
Continuing Grant
Volume Changes of McCall Glacier, Alaska, in Response to Climatic Warming in the Arctic
阿拉斯加麦考尔冰川的体积变化对北极气候变暖的反应
- 批准号:
9214954 - 财政年份:1992
- 资助金额:
$ 28.34万 - 项目类别:
Continuing Grant
Determination of the Mechanisms of Rapid Flow in JakobshavnsGlacier, Greenland, by Borehole Measurements
通过钻孔测量确定格陵兰岛雅各布港冰川快速流动的机制
- 批准号:
8722003 - 财政年份:1988
- 资助金额:
$ 28.34万 - 项目类别:
Continuing Grant
"Glaciological Studies of the Jokobshanvns Glacier, Greeland"
“格陵兰 Jokobshanvns 冰川的冰川学研究”
- 批准号:
8406818 - 财政年份:1984
- 资助金额:
$ 28.34万 - 项目类别:
Continuing Grant
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