Acquisition of a New Linux-Based Computer System for Geophysical Research

0842295 Wiens该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该提案寻求约7.5万美元的资金，用于购买地球物理研究的组计算资源。所需的是两台Dell ™服务器、三台现代工作站、两个14 TB快速RAID磁盘阵列和相关附件。这些仪器将是部门努力使共同分布式系统的硬件和软件标准化的一部分。华盛顿大学将以IT技术人员支持的形式提供100%的成本匹配。该系统将用于利用建模和地震学方法研究类地行星的内部结构和动力学。PI将应用数值模拟方法从宽带地震仪收集的数据，以阐明岛弧和弧后扩张中心的结构。这样做，他们打算阐明温度异常，熔体，水和地幔流在俯冲系统。还将处理宽频带地震数据，以了解制约冰后回弹和冰量损失估计的南极地幔结构。将通过分析地震数据并将其与热点和小规模对流模式联系起来，对地幔中的“热线”进行评估。EarthScope USAray数据将用于更好地了解地幔中的地震衰减结构。此外，将使用精确的相对定位方法和其他震源参数研究深震机制。不同的模型为北美构造历史将询问计算。核心衍射波将被分析，以了解核幔边界-从而阐明最低地幔和热通量的垂直结构。新的计算资源还将允许改进行星表面重塑和地球动力学模型。计算机系统将支持许多研究人员-PI，4名研究科学家和8名研究生。该系统还将支持本科毕业论文。大型存储空间将用于组织IRIS/PASSCAL数据集，以便交付给DMC -从而为社区提供开放的数据访问。

0842295WiensThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This proposal seeks funding of ~$75K to purchase group computing resources for geophysical research. Requested are two Dell workgroup servers, three modern workstations, two fourteen Tb fast RAID disk arrays, and associated accessories. These instruments will be part of a departmental effort to standardize hardware and software on a common distributed system. Washington University will provide a 100% cost match in the form of IT technician support. The system will be put to use in studying the interior structure and dynamics of terrestrial planets using modeling and seismological approaches. The PIs will apply numerical modeling approaches to data collected from broadband seismometers to elucidate the structure of island arcs and backarc spreading centers. In so doing they intend to elucidate temperature anomalies, melt, water, and mantle flow in subduction systems. Broadband seismic data will also be processed to understand Antarctic mantle structure constraining post-glacial rebound and ice mass loss estimates. "Hot lines" in the mantle will be assessed by analyzing and relating seismic data to hotspots and small-scale convection patterns. EarthScope USArray data will be used to better understand seismic attenuation structure in the mantle. Additionally, deep earthquake mechanistics will be investigated using precise relative location methods and other source parameters. Different models for North American tectonic history will be interrogated computationally. Core-diffracted waves will be analyzed to understand the core-mantle boundary - thus elucidating the vertical structure of the lowermost mantle and heat flux. The new computational resources will also allow for refined numerical planetary resurfacing and geodynamical models. The computer system(s) will support numerous researchers - the PIs, 4 research scientists, and 8 graduate students. The system(s) will also support undergraduate senior theses. The large storage space will be used to organize IRIS/PASSCAL datasets for delivery to the DMC - thus providing open access to data for the community.***