MRI: Acquisition of PolarGrid: Cyberinfrastructure for Polar Science

提案#：CNS07-23054PI(S)：福克斯，杰弗里·C·海登，琳达·B；勒孔特，马尔科姆；皮尔斯，马龙·E；斯图尔特，克雷格·A。机构：印第安纳大学布鲁明顿，在47402-1847年标题：核磁共振/Acq.：收购极地网格：极地科学项目的网络基础设施建议：该项目，获得一种解决关键冰盖科学的复杂仪器，使新一代具有现实边界条件的高分辨率冰盖模型能够实现具有现实边界条件的新一代高分辨率冰盖模型，这需要分布式PolarGrid网络基础设施来收集和处理数据，并用大型模拟吸收这些数据。PolarGrid由一个间歇性断开的场和基本网格组成，这些网格向“低48”的数据和计算资源提供信息。野战营地的真正实时处理得到了越来越高的保真度的支持，但基地和“低48”系统的延迟也越来越大。所要求的系统包括一个由外地电网中的加固型笔记本电脑组成的探险电网，该电网由一个低功率多核营地集群组成。印第安纳州立大学和伊丽莎白城州立大学的一个原型和两个生产网格输入到Teraflops系统中。PolarGrid将与TeraGrid整合，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，以便科学和工程界可以将原始过程和模拟数据归档到PolarGrid之外。PolarGrid具有间歇性断开连接组件的创新架构也适用于其他电力和带宽挑战应用。该仪器响应了极地卫星最近的观测，这些观测显示南极洲的冰架解体，格陵兰的几个冰川加速。广泛影响：该基础设施解决了以这种或那种方式接触到所有生物的一个重要的当前问题，即极地冰川解体的关键问题。参与的教育活动力度很大，主要是通过培养学生。ECSU是一所历史悠久的黑人大学，通过新的课程和研究经验让本科生参与进来。

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.