Collaborative Research: Permanent seafloor benchmarks for geodetic measurements of horizontal and vertical plate motion

合作研究:水平和垂直板块运动大地测量的永久海底基准

基本信息

项目摘要

The PI's request funding to increase the longevity of seafloor geodetic measurements by developing and demonstrating an inexpensive, permanent seafloor benchmark. The benchmark will provide a physical tie to the sea floor lasting for decades (perhaps longer) on which geodetic sensors can be repeatedly placed and removed with millimeter resolution. Global coordinates estimated with seafloor geodetic techniques will remain attached to the benchmark allowing for the interchange of sensors as they fail or become obsolete, or for the sensors to be removed and used elsewhere, all the while maintaining a coherent series of positions referenced to the benchmark. The benchmark will be designed to be lowered via a wire to the seafloor with sensors attached. The sensors will be capable of being recalled via an acoustic command sent from a ship to release from the benchmark and freely float to the sea surface for recovery. The duration of the sensor attachment to the benchmark will last from a few days to a few years depending on the specific needs of the experiment. The recovered sensors are then available to be reused at other locations, or again at the same site in the future.Broader Impacts:If high accuracy, cheap, campaign-style seafloor geodesy can be developed, the studies that could be done with such a system could transform our knowledge of subduction zones and megathrust earthquakes.
PI要求提供资金,通过开发和演示廉价的永久性海底基准来延长海底大地测量的寿命。该基准将提供一个持续数十年(也许更长时间)的海底物理纽带,大地测量传感器可以以毫米分辨率重复放置和移除。用海底大地测量技术估计的全球坐标将继续附在基准上,以便在传感器失灵或过时时交换传感器,或将传感器移到别处使用,同时保持一系列以基准为参照的连贯位置。该基准将被设计为通过一根连接有传感器的电线下降到海底。传感器将能够通过船舶发送的声音命令被召回,从基准释放并自由漂浮到海面进行恢复。根据实验的具体需要,传感器连接到基准的持续时间将从几天到几年不等。更广泛的影响:如果能够开发出高精度、低成本的海底大地测量方法,那么利用这种系统进行的研究将改变我们对俯冲带和巨型逆冲断层地震的认识。

项目成果

期刊论文数量(0)
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会议论文数量(0)
专利数量(0)

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C. David Chadwell其他文献

Near full locking on the shallow megathrust of the central Cascadia subduction zone revealed by GNSS-Acoustic
全球导航卫星系统 - 声学揭示卡斯卡迪亚俯冲带中部浅部大型逆冲断层近乎完全锁定
  • DOI:
    10.1016/j.epsl.2025.119463
  • 发表时间:
    2025-09-01
  • 期刊:
  • 影响因子:
    5.100
  • 作者:
    John B. DeSanto;David A. Schmidt;Mark Zumberge;Glenn Sasagawa;C. David Chadwell
  • 通讯作者:
    C. David Chadwell

C. David Chadwell的其他文献

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{{ truncateString('C. David Chadwell', 18)}}的其他基金

Advances in Seafloor Geodesy: Expanded Applications of Wave and Solar Powered Surface Vehicles
海底大地测量学的进展:波浪和太阳能水面车辆的扩展应用
  • 批准号:
    1736513
  • 财政年份:
    2017
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
Collaborative Research: Assessing the State of Locking on the Frontal Thrust of the Cascadia Subduction Zone With Seafloor Geodesy
合作研究:利用海底大地测量评估卡斯卡迪亚俯冲带锋面逆冲锁定状态
  • 批准号:
    1657961
  • 财政年份:
    2017
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
A Low-Power Global Positioning System-Acoustic Payload to study the subduction zones offshore the Pacific Northwest and Alaska
用于研究太平洋西北地区和阿拉斯加近海俯冲带的低功率全球定位系统-声学有效载荷
  • 批准号:
    1536786
  • 财政年份:
    2015
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
Constraining Slip Distribution of the Cascadia Subduction Zone Offshore Central Oregon with Seafloor Geodesy
用海底大地测量学约束俄勒冈州中部近海卡斯卡迪亚俯冲带的滑移分布
  • 批准号:
    1249876
  • 财政年份:
    2013
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Continuing Grant
Potential contributions of Seafloor Geodesy to understanding slip behavior along the Cascadia Subduction Zone
海底大地测量学对了解卡斯卡迪亚俯冲带沿线滑移行为的潜在贡献
  • 批准号:
    1144493
  • 财政年份:
    2012
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
GEOSPAR: A portable platform for GPS-Acoustic measurements of seafloor motion
GEOSPAR:用于海底运动 GPS 声学测量的便携式平台
  • 批准号:
    1130003
  • 财政年份:
    2012
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
RAPID: Chilean Earthquake Rupture Survey
RAPID:智利地震破裂调查
  • 批准号:
    1035121
  • 财政年份:
    2010
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
Collapse of the Submarine South Flank of Kilauea Volcano, Hawaii: Constraints from GPS-Acoustic Data
夏威夷基拉韦厄火山南侧潜艇的塌陷:来自 GPS 声学数据的限制
  • 批准号:
    0850875
  • 财政年份:
    2009
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
Tectonism within the axial valley walls of an intermediate spreading center: south Cleft Segment of the Juan de Fuca Ridge
中间扩张中心的轴向谷壁内的构造活动:胡安·德·富卡海岭南裂段
  • 批准号:
    0551765
  • 财政年份:
    2006
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Standard Grant
A System for Continuous Measurement of Horizontal and Vertical Crustal Deformation of the Seafloor
海底水平和垂直地壳变形连续测量系统
  • 批准号:
    0084968
  • 财政年份:
    2000
  • 资助金额:
    $ 20.4万
  • 项目类别:
    Continuing Grant

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