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

这个项目正在改进由应变计和永久GPS阵列记录的地球变形的分析方法，包括地球示波器的板块边界观测组件的那些。为了改进钻孔雨量计的校准，正在对现有数据进行分析，以提供不同的应变耦合模型以及普遍使用的工具和方法。正在开发新的方法来估计GPS测量的位移的应变变化，并检查这些数据中的噪声源和可能的地球物理信号。这些方法将使用考虑时间相关性和非高斯行为的统计描述。现有GPS网络的结果正在与圣弗朗西斯科湾区、帕克菲尔德、洛杉矶和尤卡山周围经过校准的应变仪测量结果进行比较。一个结果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。

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.