Collaborative Research: Dynamics and Kinematics of North America-Juan de Fuca-Pacific Plate Interaction: Constraints from GPS Geodesy and Geophysical Modeling

这个合作项目建议在太平洋西北地区安装一个GPS网络，以测量与胡安·德·富卡板块俯冲有关的地区的应变积累和地震危险。大地测量监测，结合地质研究和地球物理模拟，应该区分造成该地区变形的许多因素的相对重要性。pi将在一个项目中使用永久性和巡回GPS接收器矩阵，包括1)现场安装，2)数据采集，减少和存档，以及3)运动学结果建模。这项工作将与太平洋西北大地测量阵列（PANGA）主持下的其他机构和政府（加拿大）合作进行，ppi是该阵列的成员。在中央地球物理中心开发的数据分析设施将减少和分发联机和CD ROM大地测量数据产品给地球物理界。太平洋西北变形新约束的有限元建模将允许对表面变形进行运动学一致的二维估计，以及驱动变形的力的三维模型的发展。野外观测和模拟的综合方法将有助于提高对太平洋西北地区运动学和动力学的认识，并将为该地震活跃区提供重要的地震监测。＊＊＊

9614600 Qamar This collaborative project proposes installation of a GPS network in the Pacific Northwest to measure strain accumulation and earthquake hazard in the region that is associated with subduction of the Juan de Fuca plate. Geodetic monitoring, combined with geologic studies and geophysical modeling, should discriminate the relative importance of the many factors contributing to the deformation of this area. The PIs will employ a matrix of permanent and roving GPS receivers in a project that includes 1) site installation, 2) data acquisition, reduction and archiving, and 3) modeling of the kinematic results. This work will be done in collaboration with other agencies and governments (Canadian) operating under the auspices of the Pacific Northwest Geodetic Array (PANGA), of which the PIs are members. A data analysis facility developed at CWU will reduce and distribute on-line and CD ROM geodetic data products to the geophysical community. Finite-element modeling of the new constraints on Pacific Northwest deformation will allow the development of both kinematically consistent, two-dimensional estimates of the surface deformation, and three-dimensional models of the forces that drive that deformation. The integrated approach of field observations and modeling should provide an advancement of understanding of the kinematics and dynamics of the Pacific Northwest, and will provide important seismic monitoring of this seismically active region. ***