MRI: Acquisition of PolarGrid: Cyberinfrastructure for Polar Science

提案编号：CNS 07- 23054 PI：Fox，Geoffrey C. 海登，琳达B。放大图片作者：Marlon E. Stewart，克雷格A.院校：印第安纳州大学 布卢明顿，IN 47402- 1847标题： MRI/采集：收购Polar Grid：极地科学项目的网络基础设施建议：该项目获得了一个解决关键冰盖科学的复杂仪器，使新一代的高分辨率冰盖模型具有现实的边界条件，需要分布式PolarGrid网络基础设施来收集和处理数据，并将其与大型模拟同化。PolarGrid由一个间歇性断开的字段和基础网格组成，为“低48”数据和计算资源提供信息。真正的实时处理，在外地营地的备份越来越逼真，但增加延迟在基地和“低48”系统。所要求的系统包括一个探险网格，由野外网格中的加固型笔记本电脑组成，以低功耗多核营地集群为基础。一个原型和两个生产网格馈入印第安纳州和伊丽莎白城州立大学的Teraflops系统。PolarGrid将与TeraGrid集成，以实现资源利用和课程共享。将遵循现代开放数据访问标准，以便原始流程和模拟数据可以在PolarGrid之外由科学和工程界存档。PolarGrid具有间歇性断开的组件的创新架构也适用于其他功率和带宽挑战的应用。最近的极地卫星观测显示南极洲的冰架正在解体，格陵兰岛的几个冰川正在加速融化，这一仪器是对这一观测结果的回应。主要通过对学生的培训，开展了强有力的教育活动。ECSU是一所历史悠久的黑人大学，通过新的课程和研究经验吸引本科生。

Proposal #: CNS 07-23054PI(s): Fox, Geoffrey C. Hayden, Linda B.; LeCompte, Malcolm; Pierce, Marlon E.; Stewart, Craig A.Institution: Indiana University Bloomington, IN 47402-1847Title: MRI/Acq.: Acquisition of Polar Grid: Cyberinfrastructure for Polar Science Project Proposed:This project, acquiring a sophisticated instrument that addresses crucial ice-sheet science, enables a new generation of high resolution ice-sheet models with realistic boundary conditions that requires distributed PolarGrid Cyberinfrastructure to gather and process data and assimilate these with large simulations. PolarGrid consist of an intermittently disconnected field and base grids feeding information to "lower 48" data and computing resources. True real-time processing at the field camp is backed up with increasing fidelity, but increasing delay at the base and "lower 48" systems. The requested system includes an expedition grid consisting of ruggedized laptops in a field grid to a low power multi-core based camp cluster. A prototype and two production grids feed into a Teraflops system at Indiana and Elizabeth City State Universities. PolarGrid will be integrated with TeraGrid for both resource utilization and curricula sharing. Modern open data access standards will be followed so that raw processes, and simulated data can be archived outside PolarGrid by and for the science and engineering community. The innovative architecture of PolarGrid with intermittently disconnected components also has applications to other power- and bandwidth-challenged applications. The instrument responds to the recent polar satellite observations that show disintegration of ice shelves in Antarctica and the speed-up of several glaciers in Greenland.Broader Impact: The infrastructure addresses an important current problem that touches all beings in one way or another, the key issue of polar ice disintegration. Strong educational activities are involved, mainly through the training of students. ECSU, a historically black university, involves undergraduate students through new curricula and research experiences.