MRI: Acquisition for Integrating Global Reporting Geophysical Observatories within the Chilean National Seismic Network (GRGOC)

这项核磁共振成像奖将提供资金，以建立一个由十个一级地球物理观测站组成的网络，这些观测站在世界上最具活力的地球系统之一的智利沿线间隔约350公里处安装宽带地震、强运动、次声、气压和气象(温度、压力、风速和风向、降水和相对湿度)传感器。这一主干网络，加上计划升级的智利国家地震系统，将成为增进了解以下问题的基础：纳斯卡板块和南美洲板块之间边界的结构和动力学；大俯冲带地震的起源；震前、同震和震后形变；智利、南美洲和东南太平洋的地震活动；与类似构造背景下的俯冲带的比较研究；安第斯火山区域火山和其他大气扰动的次声信号；以及安第斯山脉西缘与太平洋之间的大气动力学。IRIS联盟和智利大学之间的这一合作努力，承诺免费和开放地分发所有数据，将刺激加强基础地球科学学科和减灾方面的研究和教育的机会。这种在基础设施发展方面的合作努力为美国学术界参与现代观测系统的开发建立了一个有希望的模式，南美洲邻国和世界各地可能会效仿这种模式。

This MRI award will provide funding to establish a network of ten first-order geophysical observatories, with co-located broadband seismic, strong motion, infrasound, barometric pressure and meteorological (temperature, pressure, wind speed and direction, precipitation and relative humidity) sensors at approximately 350 km spacing along the length of Chile, in one of the world's most dynamic geosystems. This backbone network, coupled with planned upgrades to the Chilean National Seismic System, will form the basis for improved understanding of the structure and dynamics of the boundary between the Nazca and South American plates; the origin of large subduction zone earthquakes; pre-, co- and post-seismic deformation; earthquake activity throughout Chile, South America and the southeastern Pacific; comparative studies with subduction zones in similar tectonic settings; infrasound signals from regional Andean volcanoes and other atmospheric disturbances; and atmospheric dynamics between the western edge of the Andean Mountains and the Pacific Ocean. This collaborative effort between the IRIS Consortium and the University of Chile, with a commitment to free and open distribution of all data, will stimulate opportunities for enhanced research and education across fundamental geoscience disciplines and in hazard mitigation. This collaborative effort in infrastructure development establishes a promising model for the engagement of the US academic community in the development of modern observational systems, which may be emulated in neighboring parts of South America and throughout the world.