MRI: Development of a Wirelessly-Connected Network of Seismometers and GPS Instruments for Polar and Geophysical Research

MRI:开发用于极地和地球物理研究的地震仪和 GPS 仪器无线连接网络

基本信息

项目摘要

Intellectual Merit: Knowledge of englacial and subglacial conditions are critical for ice sheet models and predictions of sea-level change. Some of the critical variables that are poorly known but essential for improving flow models and predictions of sea-level change are: basal roughness, subglacial sedimentary and hydrologic conditions, and the temporal and spatial variability of the ice sheet flow field. Seismic reflection and refraction imaging and dense arrays of continuously operating GPS receivers can determine these parameters. The PIs propose to develop a network of wirelessly interconnected geophysical sensors (geoPebble) that will allow glaciologists to carry out these experiments simultaneously. This sensor web will provide a new way of imaging the ice sheet that is not possible with current instruments. With this sensor web, the PIs will extend the range of existing instruments from 2D to 3D, from low resolution to high resolution, but more importantly, all the geophysical measurements will be conducted synchronously. By the end of the proposal period the PIs will produce a network of 150-200 geoPebbles that will be available for NSF-sponsored glaciology research projects. Broader impacts: Improved knowledge of the flow law of ice, the sliding of glaciers and ice streams, and paleoclimate history will contribute to assessments of the potential for abrupt ice-sheet mass change, with consequent sea-level effects and significant societal impacts. This improved modeling ability will be a direct consequence of better knowledge of the physical properties of ice sheets, which this project will facilitate. The development effort will be integrated with the undergraduate education program via the capstone design classes in EE and the senior thesis requirement in Geoscience. The PIs will also form a cohort of first-year and sophomore students who will work in their labs from the beginning of the project to develop specifications through the commissioning of the network.
知识价值:冰川和冰下条件的知识对冰盖模型和海平面变化的预测至关重要。一些为人所知甚少但对改进流量模型和海平面变化预测至关重要的关键变量是:基底粗糙度、冰下沉积和水文条件以及冰盖流场的时空变动性。地震反射和折射成像以及连续运行的GPS接收器密集阵列可以确定这些参数。pi建议开发一个无线互联的地球物理传感器网络(geoebble),使冰川学家能够同时进行这些实验。这个传感器网将提供一种用现有仪器无法实现的对冰盖成像的新方法。有了这个传感器网,pi将把现有仪器的范围从2D扩展到3D,从低分辨率扩展到高分辨率,但更重要的是,所有的地球物理测量将同步进行。在提案期结束时,pi将生产一个由150-200个地质鹅卵石组成的网络,这些地质鹅卵石将用于nsf赞助的冰冰学研究项目。更广泛的影响:提高对冰的流动规律、冰川和冰流滑动以及古气候历史的认识,将有助于评估冰盖质量突变的可能性,以及随之而来的海平面效应和重大的社会影响。这种改进的建模能力将是更好地了解冰盖物理性质的直接结果,该项目将促进这一点。开发工作将通过电气工程的顶点设计课程和地球科学的高级论文要求与本科教育计划相结合。项目负责人还将组成一组一年级和二年级的学生,他们将从项目开始就在实验室工作,通过网络的调试制定规范。

项目成果

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Sridhar Anandakrishnan其他文献

Sridhar Anandakrishnan的其他文献

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{{ truncateString('Sridhar Anandakrishnan', 18)}}的其他基金

Collaborative Research: GreenDrill: The response of the northern Greenland Ice Sheet to Arctic Warmth - Direct constrains from sub-ice bedrock
合作研究:GreenDrill:格陵兰岛北部冰盖对北极温暖的响应 - 来自冰下基岩的直接限制
  • 批准号:
    1933802
  • 财政年份:
    2020
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Continuing Grant
NSF-NERC: Ground Geophysics Survey of Thwaites Glacier
NSF-NERC:思韦茨冰川地面地球物理调查
  • 批准号:
    1738934
  • 财政年份:
    2018
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Continuing Grant
Rutford Ice Stream Cooperative Research Program with British Antarctic Survey
拉特福德冰流与英国南极调查局的合作研究项目
  • 批准号:
    1643961
  • 财政年份:
    2018
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
Collaborative research: acoustic logging of the WAIS Divide borehole
合作研究:WAIS Divide 钻孔的声波测井
  • 批准号:
    0944285
  • 财政年份:
    2010
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
Workshop Proposal: West Antarctic Ice Sheet (WAIS)
研讨会提案:南极西部冰盖 (WAIS)
  • 批准号:
    1048878
  • 财政年份:
    2010
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
Collaborative Research: Geophysical Study of Ice Stream Stick-slip Dynamics
合作研究:冰流粘滑动力学地球物理研究
  • 批准号:
    0944286
  • 财政年份:
    2010
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Continuing Grant
Collaborative Research: Glacier Seismicity and its relationship to basal movement
合作研究:冰川地震活动及其与基底运动的关系
  • 批准号:
    0907178
  • 财政年份:
    2009
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
Collaborative Research: Integrative Study of Marine Ice Sheet Stability & Subglacial Life Habitats in W Antarctica - Lake & Ice Stream Subglacial Access Research Drilling (
合作研究:海洋冰盖稳定性综合研究
  • 批准号:
    0838763
  • 财政年份:
    2009
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
Collaborative Research: Integrative Study of Marine Ice Sheet Stability and Subglacial Life Habitats - Robotic Access to Grounding-zones for Exploration and Science (RAGES)
合作研究:海洋冰盖稳定性和冰下生命栖息地的综合研究 - 机器人进入勘探和科学接地区(RAGES)
  • 批准号:
    0838764
  • 财政年份:
    2009
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH; IPY: Ocean-Ice Interaction in the Amundsen Sea sector of West Antarctica
合作研究;
  • 批准号:
    0732844
  • 财政年份:
    2007
  • 资助金额:
    $ 97.49万
  • 项目类别:
    Continuing Grant

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