Collaborative Research: Integration of Synthetic Aperture Radar Interferometry, Continuous GPS and GPS Meteorology for Crustal Deformation and Earthquake Monitoring

合作研究：综合孔径雷达干涉测量、连续GPS和GPS气象学用于地壳变形和地震监测

• 批准号: 9619201
• 负责人: Yehuda Bock
• 金额: $ 52.27万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9619201&HistoricalAwards=false
• 关键词: Collaborative; Research; Integration; Synthetic; Aperture

9619201 Bock This award supports research aimed at an integration of two technologies which have proven useful for monitoring motion of the Earth's crust. The Global Positioning System (GPS) is currently capable of measuring baselines (the distance between two GPS receiver location points on Earth) with a precision in the millimeter range at distances of hundreds of kilometers. Interferometric Synthetic Aperture Radar (INSAR) cannot offer a comparable level of precision, but has the advantage of being able to measure relative motion of the crust over a continuous area (as opposed to a limited number of discrete points on the surface). Combining the two approaches will provide greatly enhanced capabilities for understanding such phenomena as earthquake related motion (pre-, syn-, and post-seismic), volcanic activity, plate tectonic motions, groundwater movement, and other local and regional crustal strain processes. The research is a collaboration among geoscientists at the University of California, San Diego, Stanford University and the University of Hawaii. The approach by the collaborators will be: (1) to reduce the so-called orbital or baseline error of INSAR by deploying radar reflectors or transponders at selected GPS receiver sites and thereby pin down the precise locations of those points to serve as anchors for the INSAR interferometry, and (2) use meteorogical models and satellite data to reduce the error in GPS locations due to the effect of water vapor in the atmosphere. ***

9619201 Bock该奖项支持旨在整合两种技术的研究，这些技术被证明可用于监测地壳的运动。当前，全球定位系统（GPS）能够测量基线（地球上两个GPS接收器位置点之间的距离），其精度在毫米范围内，距离为数百万公里。 干涉合成孔径雷达（INSAR）不能提供可比的精度水平，但具有能够在连续区域上测量地壳的相对运动的优点（与表面上有限数量的离散点相反）。 结合两种方法将提供大大增强的能力，以理解诸如地震相关运动（前，综合和后震动），火山活动，板块构造运动，地下水运动以及其他局部和区域甲壳菌株菌株过程等现象。这项研究是加利福尼亚大学，圣地亚哥大学，斯坦福大学和夏威夷大学的地球科学家之间的合作。合作者的方法将是：（1）通过在选定的GPS接收器站点部署雷达反射器或转发器来减少所谓的轨道或基线误差，从而将这些点的精确位置固定为固定位置的确切位置，以作为Insar Insar Interfermementry的锚点，以及（2）使用气候模型和卫星范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围内的范围。 ***