Upgrading of Computer Facility for Research in Seismology

[0214069]这笔拨款用于支持哈佛大学地震学计算设备的升级，以促进地震学和地球物理学的广泛研究。此次升级将包括一个具有大共享内存和大容量快速访问磁盘阵列的快速多处理器服务器。新基础设施支持的活动包括围绕哈佛CMT项目的地震研究。该项目的一个重要组成部分是利用全球分布的地震仪的数字数据，系统地分析世界上所有震级大于5.2级的地震。支持活动的第二个组成部分涉及地球内部弹性特性的成像。该研究通过开发新数据集和联合反演各种现有数据集，如绝对和差分旅行时间、表面波色散曲线、全波形和正态谱来实现。升级后的计算机设备将允许对地球结构进行更详细的参数化，并对地球内部进行更高保真度的成像

0214069EkstromThis grant provides support to upgrade the Harvard Seismology computing facility in order to facilitate a broad range of research in seismology and geophysics. The upgrade will include a fast multiprocessor server with large shared memory and a large-volume fast-access disk array. The activities supported by the new infrastructure include earthquake studies focused around the Harvard CMT project. An important component of this project is the systematic analysis of all earthquakes with magnitudes greater than approximately 5.2 around the world, using digital data from globally distributed seismographs. A second component of the supported activities involves imaging of the elastic properties of the Earth's interior. This research is pursued by development of new data sets and the joint inversion of various existing data sets, such as absolute and differential travel times, surface-wave dispersion curves, full waveforms, and normal-mode spectra. The upgraded computer facilities will allow a more detailed parameterization of Earth structure and a higher fidelity imaging of the Earth's interior.***