The Polar Geospatial Center: Community and Facility Support

极地地理空间中心：社区和设施支持

• 批准号: 1559691
• 负责人: Jonathan Pundsack
• 金额: $ 1118.01万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-05-01 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1559691&HistoricalAwards=false
• 关键词: Polar; Geospatial; Center; Community; Facility

Title: The Polar Geospatial Center: Community and Facility SupportNon-Technical AbstractThe Polar Geospatial Center (PGC) is a polar science and logistics support organization at the University of Minnesota. The research community finds itself in the midst of a scientific and geospatial revolution sparked by the availability of an unprecedented volume of open geospatial data, as well as access to high-resolution optical imagery made available by the National Geospatial-Intelligence Agency (NGA). In support of NSF?s Polar science mission of understanding the earth and its systems, exploring the geographical frontier, and performing science enabled by in polar setting, PGC uses these data to provide mapping, GIS, and remote sensing solutions to researchers and logistics groups. PGC provides products and services including: mapping and GIS analysis; access to sub-meter commercial satellite imagery for the Antarctic and Arctic; expertise to task, manage, process and deliver high-level value-added products to the NSF polar community; domain and institutional knowledge to solve a broad range of geospatial problems; and educational courses including online material to transfer PGC?s knowledge and experience to the community. The PGC is collaborating with the National Geospatial-Intelligence Agency to create a publicly available high-resolution digital elevation model (DEM) of the entire Arctic from high-resolution satellite imagery. These data will be used by the Arctic community to support activities including transportation, national defense, land management, sustainable development, and scientific studies.Technical Abstract The Polar Geospatial Center (PGC) facilitates access to geospatial resources and knowledge for the polar community. PGC staff has a direct one-to-one relationship with each user, tailoring product delivery to the expertise and needs of the user?s specific science or logistics goals. To this end, PGC maintains an extensive online archive of sub-meter electro-optical commercial imagery licensed through the National Geospatial-Intelligence Agency?s (NGA) EnhancedView program. PGC works to automate labor-intensive processing workflows using the Extreme Science and Discovery Environment (XSEDE) and Blue Waters high performance computing infrastructures, and is developing a web-based imagery and geospatial product delivery system (FRIDGE; Federal Research Imagery Download and Geodata Exploration). This delivery system is based around a task management and queuing tool that interfaces with PGC?s user management database and PGC?s HPC cluster. Polar digital elevation models (DEM) will be produced using the Surface Extraction from TIN-based Search-space Minimization (SETSM) algorithm and the Ames Stereo Pipeline. These products have an expected accuracy of 4m without ground control and sub-meter accuracy when ground control is used. A key component of PGC's mission is training of today's young geospatial students in the use of imagery to solve scientific problems. PGC offers workshops, online instructional material, and collaborative imagery processing workflow development. PGC?s goal is to provide rapid and cost-effective access to geospatial data and education for the purpose of promoting polar science.

标题：极地地理空间中心：社区和设施支持非技术摘要极地地理空间中心(PGC)是明尼苏达大学的一个极地科学和后勤支持组织。研究界发现自己正处于一场科学和地理空间革命之中，这场革命是由前所未有的大量开放地理空间数据的提供以及国家地理空间情报局(NGA)提供的高分辨率光学图像的获取引发的。为了支持美国国家科学基金会S的极地科学任务，即了解地球及其系统，探索地理前沿，并在极地环境下进行科学研究，PGC使用这些数据为研究人员和后勤团队提供测绘、地理信息系统和遥感解决方案。PGC提供的产品和服务包括：测绘和地理信息系统分析；获得南极和北极亚米级商业卫星图像；向国家科学基金会极地社区提供任务、管理、加工和交付高水平增值产品的专门知识；解决广泛地理空间问题的领域和机构知识；以及教育课程，包括向社区传授PGC？S的知识和经验的在线材料。PGC正在与国家地理空间情报局合作，根据高分辨率卫星图像创建一个公开可用的整个北极的高分辨率数字高程模型(DEM)。这些数据将被北极社区用于支持包括交通、国防、土地管理、可持续发展和科学研究在内的活动。技术摘要极地地理空间中心(PGC)为北极社区获取地理空间资源和知识提供便利。PGC的工作人员与每个用户有直接的一对一关系，根据用户的专业知识和需求量身定做产品交付-S具体的科学或物流目标。为此，国家地理信息中心维护着一个由国家地理空间情报局S增强查看计划授权的亚米级电子光学商业图像的广泛在线档案。PGC致力于使用极端科学和发现环境(XSEDE)和Blue Waters高性能计算基础设施来自动化劳动密集型处理工作流程，并正在开发基于网络的图像和地理空间产品交付系统(冰箱；联邦研究图像下载和地理数据探索)。该交付系统基于一个任务管理和排队工具，该工具与PGC？S用户管理数据库和PGC？S高性能计算集群接口。极地数字高程模型(DEM)将使用基于TIN的搜索空间最小化表面提取(SETSM)算法和Ames立体管道生成。这些产品没有地面控制时的预期精度为4米，使用地面控制时的精度为亚米级。PGC使命的一个关键组成部分是培训当今年轻的地理空间学生使用图像解决科学问题。PGC提供研讨会、在线教学材料和协作图像处理工作流程开发。S的目标是为促进极地科学提供快速和经济有效的地理空间数据访问和教育。