Collaborative Research: Petascale Design and Management of Satellite Assets to Advance Space Based Earth Science

该奖项促进了使用伊利诺伊大学正在部署的名为Blue Waters的大型、新的计算资源的科学研究。它提供差旅资金，以支持主要研究人员、Blue Waters项目团队和供应商技术团队之间的技术协调。宾夕法尼亚州立大学和普林斯顿大学的这一合作奖项正式将高分辨率天体动力学设计和空间资产的协调与地球科学影响联系起来。这是通过该项目的千万亿级多目标全局优化框架实现的。多学科研究团队将利用Petascale基于全球灵敏度的模型诊断来评估天体动力学和地球系统模型的预测保真度，并允许可视化设计权衡。与Blue Waters合作，该项目的研究旨在改变可探索的系统工程设计挑战的规模和范围。从设计认知的角度来看，Blue Waters的使用将从根本上提高发现和可视化包括地球科学应用在内的最佳多目标卫星星座设计权衡的能力。在这种情况下，这项研究将使用全球降水量测量(GPM)来演示蓝色水域的规划框架。GPM提供了一个极具挑战性的设计基准，通过它(1)淡水可用性的4-D表征，(2)降水事件微观物理特性的改进表征，(3)基于改进的地表水通量估计的改进的气候预测，(4)用于数值天气预报的高价值业务数据，以及(5)全球在洪水、干旱、滑坡和飓风的水文预测和管理方面的改进。在发展中国家，水资源管理者依赖于未来的卫星观测，特别是基于卫星的降水信息。拟议的框架将加强我们满足这一关键需求的能力，具体评估候选GPM设计如何潜在地提高我们使用卫星数据进行洪水评估、干旱监测和评估大流域水资源可用性的能力。该项目还将用于培训来自工程、计算机科学、数学、统计学、运筹学和地球科学的15-25名人口和地理不同的研究生博士生。

This award facilitates scientific research using the large, new, computational resource named Blue Waters being deployed at the University of Illinois. It provides travel funds to support technical coordination between the principal investigators, the Blue Waters project team and the vendor technical team.This collaborative award to Pennsylvania State University and Princeton University formally links high-resolution astrodynamics design and coordination of space assets with Earth science impacts. This is accomplished through the project's petascale many-objective global optimization framework. The multidisclinary research team will exploit Petascale global sensitivity-based model diagnostics to evaluate the predictive fidelity of the astrodynamics and Earth system models, and allow visualization of design tradeoffs. With Blue Waters, the project's research aims to transform the scale and scope of systems-of-systems engineering design challenges that can be explored. From the design cognition perspective, this use of Blue Waters will radically advance ability to discover and visualize optimal many-objective satellite constellation design tradeoffs that include Earth science applications. In this case the research will demonstrate the planning framework on Blue Waters using Global Precipitation Measurement (GPM). GPM provides a highly challenging design benchmark that has strong links to Earth science through its (1) 4-D characterization of freshwater availability, (2) improved characterization of the microphysical properties of precipitation events, (3) improved climate predictions based on enhanced estimation of surface water fluxes, (4) high value operational data for numerical weather prediction, and (5) global enhancements in hydrologic prediction and management of floods, droughts, landslides, and hurricanes.Beyond the US and Europe, there is a critical deficiency in the in-situ Earth observations needed to monitor floods and droughts. In the developing world, water managers are reliant on future satellite observations and in particular on satellite-based precipitation information. The proposed framework will strengthen our ability to serve this critical need by providing a specific evaluation of how candidate GPM designs can potentially improve our ability to use satellite data for flood assessment, drought monitoring, and assessing water availability in large river basins. The project will also be used in the training of 15-25 demographically and geographically diverse graduate PhD students from engineering, computer science, mathematics, statistics, operations research, and the Earth sciences.