Making Effective Use of GPS and Strainmeter Data: A PBO Pilot Project

有效利用 GPS 和应变仪数据：PBO 试点项目

• 批准号: 0454475
• 负责人: Duncan Carr Agnew
• 金额: --
• 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: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0454475&HistoricalAwards=false
• 关键词: Making; Effective; Use; GPS; Strainmeter

0454475AgnewThis project is improving methods for analyzing Earth deformation recorded bystrainmeters and by permanent GPS arrays including those of the Plate BoundaryObservatory component of EarthScope. To improve the calibration of boreholestrainmeters, existing data is being analysed to provide different models forstrain coupling, and tools and methods for general use. New methods are beingdeveloped to estimate strain changes from displacements measured by GPS, and toexamine sources of noise, and of possible geophysical signals, in such data.These methods will use statistical descriptions that allow for temporalcorrelation and non-Gaussian behavior. The results from existing GPS networksare being compared with calibrated strainmeter measurements around the SanFrancisco Bay area, at Parkfield, in Los Angeles, and at Yucca Mountain. Oneresult is to help create a community of strain-data users, in training studentsand providing analysis tools.

这个项目正在改进分析地球变形的方法，这些方法是由应变仪和永久GPS阵列记录的，包括地球范围的板块边界观测站组件。为了改进钻孔应变计的校准，目前正在分析现有数据，以提供不同的应变耦合模型，以及通用的工具和方法。正在开发新的方法来估计由GPS测量的位移引起的应变变化，并检查这些数据中的噪声源和可能的地球物理信号。这些方法将使用允许时间相关性和非高斯行为的统计描述。现有GPS网络的结果将与旧金山湾地区、帕克菲尔德、洛杉矶和尤卡山的校准应变仪测量结果进行比较。结果之一是帮助创建一个应变数据用户社区，培训学生并提供分析工具。