Upgrade of UCLA Computing Facilities for Research in Seismology

9615357 Vidale这笔赠款提供47,000美元，作为加州大学洛杉矶分校地球和空间科学部购买计算机设备用于地震学和大地测量研究的一半费用。将购买的设备将包括多个SUN工作站、一个高端SUN工作站、双处理器和扩展的内存和磁盘存储以及额外的外围设备。该设备将极大地增强加州大学洛杉矶分校一个大型团队的研究能力，该团队进行广泛的地球物理研究，这是计算密集型的。将利用新的计算机网络进行的研究将包括：对从地震数据和GPS测量确定的位移数据确定的地震丛集进行建模，以提供地震预报；基于断层几何和岩石类型分析的地震活动性质；地震前、同震和震后数据的统计分析，以帮助了解地震风险的空间和时间性质；通过分析宽带数字地震图确定地震能量，以帮助了解俯冲带内的深源地震物理；通过分析PASSCAL数据进行地震层析，以检查活动裂谷地区(即东非裂谷，贝加尔裂谷)和对南加州兰德斯地震近地表地震速度横向非均质性的研究。***

9615357 Vidale This grant provides $47,000 as one-half of the costs of acquiring computer equipment for the UCLA Department of Earth & Space Sciences for use in seismological and geodetic research. Equipment to be purchased will include, multiple SUN workstations, one high end SUN workstation dual processors and expanded memory and disk storage and additional peripherals. This equipment will greatly enhance the research capabilities of a large group at UCLA which conducts a broad range of geophysical research that is computationally intensive. Studies that will utilize the new computer network will include, modeling of earthquake clustering determined from seismic data and displacement data determined from GPS measurements in an attempt to provide earthquake forecasts, the nature of seismicity based on analysis of fault geometry and rock types, statistical analysis of pre-seismic, co-seismic and post-seismic data to aid in understanding the spatial and temporal nature of seismic risks, determination of seismic energy from analyses of broadband digital seismograms to aid in the understanding of deep focus earthquake physics within subduction zones, seismic tomography via analysis of PASSCAL data to examine mantle dynamics beneath areas of active rifting (i.e. East African Rift, Baikal Rift) and studies of the lateral heterogeneity of near-surface seismic velocities from the Landers earthquake in southern California. ***