Seafloor deformation and point convergence of and between two CORK monuments off Nicoya Peninsula, Costa Rica

哥斯达黎加尼科亚半岛附近两个 CORK 纪念碑之间的海底变形和点收敛

基本信息

项目摘要

The overall goal of the proposed project is to monitor seafloor deformation (vertical movement and tilt) of the seafloor at the Middle American subduction zone off Nicoya Peninsula, Costa Rica. Two CORKs, installed during Leg 205 will be used as seafloor geodetic monuments and equipped with high resolution state-of-the-art point position monitoring devices. The devices are (1) a water level sensor, i.e. a pressure meter, that provides 0.7mm resolution at ambient pressure of the vertical position with respect to mean sea level and (2) self-leveling biaxial tiltmeters that measure the angle displacements in two perpendicular horizontal directions with a very high resolution of Snrad. To control environmental conditions high resolution temperature loggers will be included in the monitoring system. The measurements will run over approximately two years at sampling intervals of some minutes to provide a comprehensive multi-scale data set of CORK motion. Local influences on CORK motion from e.g. formation pressure changes and differential motion between both CORKs will be studied in detail. The determined values of CORK motion will be compared and linked to the global plate tectonic movement pattern, measured on land at the same time by other groups. One of the locations (Site 1253) is located in the trench about 200m seaward of the deformation front whereas the other location (Site 1255) is only 600m away from 1253 and located 400m arcward of the deformation front. By monitoring pressures and tilt at both sites we will be able to measure relative as well as absolute deformation. It is planned to install the system in the fall of 2007 with a ROV/submersible and recover it about two years later.
拟议项目的总体目标是监测哥斯达黎加尼科亚半岛外中美洲俯冲带海底变形(垂直移动和倾斜)。在第205航次期间安装的两个软木塞将用作海底大地测量标志物,并配备高分辨率最先进的点位监测装置。这些设备是(1)水位传感器,即压力计,其在相对于平均海平面的垂直位置的环境压力下提供0.7mm的分辨率,以及(2)自流平双轴倾斜仪,其以Snrad的非常高的分辨率测量在两个垂直水平方向上的角位移。为了控制环境条件,监测系统中将包括高分辨率温度记录仪。测量将持续大约两年,每隔几分钟进行一次采样,以提供一个全面的多尺度软木塞运动数据集。将详细研究COLK运动的局部影响,例如地层压力变化和两个COLK之间的差动运动。将对确定的CORK运动值进行比较,并将其与其他小组同时在陆地上测量的全球板块构造运动模式联系起来。其中一个位置(1253号点)位于变形锋向海方向约200 m的海沟中,而另一个位置(1255号点)距离1253号点仅600 m,位于变形锋向弧方向400 m处。通过监测这两个地点的压力和倾斜,我们将能够测量相对和绝对变形。计划在2007年秋季用一个潜水器安装该系统,并在大约两年后将其回收。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Effective resolution and drift of Paroscientific pressure sensors derived from long‐term seafloor measurements
  • DOI:
    10.1029/2009gc002532
  • 发表时间:
    2009-08
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    A. Polster;M. Fabian;H. Villinger
  • 通讯作者:
    A. Polster;M. Fabian;H. Villinger
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Professor Dr. Heinrich Villinger其他文献

Professor Dr. Heinrich Villinger的其他文献

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{{ truncateString('Professor Dr. Heinrich Villinger', 18)}}的其他基金

Replacement of temperature loggers in CORKed ODP boreholes off Costa Rica and analysis of long-term temperature records
更换哥斯达黎加海域软木 ODP 钻孔中的温度记录仪并分析长期温度记录
  • 批准号:
    130518454
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Longstern study of hydrothermalism and biology at the Logatchev field, Mid-Atlantic Ridge at 15°N (revisit 2005) M64/2
朗斯特恩在北纬 15°大西洋中脊 Logatchev 油田进行的热液作用和生物学研究(2005 年重访)M64/2
  • 批准号:
    5439673
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Interpretation of geothermal investigations off Costa Rica an Nicaragua
哥斯达黎加至尼加拉瓜地热调查解读
  • 批准号:
    5412792
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Logatchev Longterm Hydrothermal Field Environmental Monitoring
Logatchev 长期热液田环境监测
  • 批准号:
    5416162
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Flach-mariner Hydrothermalismus im Bereich der Tjörnes Bruchzone (nördlich von Island)
Tjörnes 断裂带(冰岛北部)的浅层海洋热液作用
  • 批准号:
    5372642
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Temperature Probes of ODP: Improvement of the APC Temperature Tool electronics and modeling of thermal response of high resolution temperature tools
ODP 温度探头:APC 温度工具电子设备的改进以及高分辨率温度工具热响应的建模
  • 批准号:
    5375100
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Geothermal investigations at the Continental margin off Costa Rica and Nicaragua (M54/2)
哥斯达黎加和尼加拉瓜大陆边缘的地热调查(M54/2)
  • 批准号:
    5360219
  • 财政年份:
    2002
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Participation in a site survey cruise off Costa Rica on RV Ewing
乘坐 RV Ewing 参加哥斯达黎加附近的现场勘察巡航
  • 批准号:
    5335000
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Thermal constraints for the seismogenic zone off Costa Rica from geothermal measurements during ODP-Leg 205
ODP-205 段期间地热测量对哥斯达黎加近海地震区的热约束
  • 批准号:
    5334950
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes
Erprobung und Einsatz einer neuen WSTP-Sonde zur Messung von Temperaturen in ODP-Bohrungen
测试和部署用于测量 ODP 井温度的新型 WSTP 探头
  • 批准号:
    5236740
  • 财政年份:
    1995
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes

相似国自然基金

可积系统的可积形变及其应用
  • 批准号:
    10901090
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