The Extent and Cause of Earthquake Strong Ground Motion Variations Measured by SMART-2 Accelerograph Array in Taiwan

这次行动是为了支持台湾花莲的一个新的地震加速器阵列。这个加速度计（强地面运动记录）阵列被称为SMART-2，是台湾强运动阵列的首字母缩略词，支持台湾洛东现有的SMART-1加速度计阵列。它也是与美国核管理委员会和电力研究所以及台湾中央研究院地球科学研究所合作的延续。在这项合作中，美国机构最初是主要的支持者，但这种情况逐渐改变，直到现在由中央研究院提供主要的支持。SMART-1记录了大量的地震强地震动记录，已被美国的研究人员和从业人员广泛使用。SMART-2在较硬的土壤上，这是大多数主要结构所建立的更典型的基础材料；因此，它有望为工程师提供更有价值的强运动记录。随着SMART-1的继续运行，预计SMART-1和SMART-2将记录相同的地震，提供有关地震运动传播的宝贵信息。尤其是那些靠近震中的运动。地球科学研究所负责购买和安装数字记录仪，准备仪器场地，为SMART-2操作提供工作人员，并开发用于处理强震记录的算法。NSF负责(1)帮助建立SMART-2记录的地震运动的传播和基本处理；(2)协助将SMART-2数据与公用工程集团运营的较小尺度三维阵列数据整合，用于土-结构相互作用研究；(3)启动了SMART-1在“软”土上的强地震动变化和其他地震动问题的基础研究。

This action is for support of a new earthquake accelerograph array at Hualien, Taiwan. This accelerograph (strong ground motion recording) array is referred to as SMART-2, an acronym for Strong Motion Array in Taiwan, support for the existing SMART-1 accelerograph array at Lotung, Taiwan. It is also a continuation of a collaboration with the Nuclear Regulatory Commission and the Electric Power Research Institute in the U.S. and the Institute of Earth Sciences, Academia Sinica in Taiwan. In this collaboration, the U.S. institutions were initially the major supporters, but this has progressively changed until now the major support for this project is provided by the Academia Sinica. SMART-1 has logged a large number of earthquake strong ground motion records, which have been used extensively by researchers and practitioners in the United States. SMART-2 is on harder soil, which is more typical of the foundation material on which most major structures are erected; thus it promises to provide strong motion records of even greater value to engineers. As operation of SMART-1 will continue, it is expected that SMART-1 and SMART-2 will record the same earthquakes, yielding valuable information on the propagation of earthquake motions, especially those motions close to the epicenter. The Institute of Earth Sciences is responsible for purchasing and installing the digital recorders, preparation of the instrument sites,providing staff for the SMART-2 operations, and for developing the algorithms used tom process the strong motion records. The NSF is responsible for (1) helping establish the dissemination and basic processing of seismic motions recorded by SMART-2, (2) assisting in the integration of SMART-2 data with that from the smaller scale three-dimensional array operated by utility engineering groups for studies of soil- structure interaction; and (3) the initiation of basic research into the variation of strong ground motion and other ground motion problems treated first at SMART-1 on "soft" soil.