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

合作研究：北美-胡安·德富卡-太平洋板块相互作用的动力学和运动学：GPS 大地测量学和地球物理模型的约束

• 批准号: 9614365
• 负责人: M. Meghan Miller
• 金额: $ 13.65万
• 依托单位: Central Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-02-15 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9614365&HistoricalAwards=false
• 关键词: Collaborative; Research; Dynamics; Kinematics; North

9614365 Miller 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. ***

小米勒9614365 这一合作项目提议在太平洋西北部安装一个全球定位系统网络，以测量与胡安·德富卡板块俯冲有关的区域的应变积累和地震危险。 大地测量监测与地质研究和地球物理模拟相结合，应区分造成该地区变形的许多因素的相对重要性。 PI将在一个项目中采用永久和流动GPS接收器矩阵，该项目包括1）现场安装，2）数据采集、还原和存档，以及3）运动学结果建模。 这项工作将与其他机构和政府（加拿大）合作进行，这些机构和政府在太平洋西北大地测量阵列（太平洋大地测量阵列）的主持下开展工作，太平洋岛屿研究所是该阵列的成员。 在CWU开发的一个数据分析设施将减少并向地球物理界分发在线和CD ROM大地测量数据产品。 对太平洋西北部变形的新约束的有限元建模将允许开发运动学上一致的表面变形的二维估计和驱动该变形的力的三维模型。 现场观测和建模的综合方法应提供对太平洋西北部运动学和动力学的理解的进步，并将提供对这一地震活跃区的重要地震监测。 ***