Collaborative Research: The Dark Energy Survey Data Management System

合作研究：暗能量勘测数据管理系统

• 批准号: 0813575
• 负责人: Joshua Frieman
• 金额: $ 9.96万
• 依托单位: Fermi Research Alliance, LLC
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-15 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0813575&HistoricalAwards=false
• 关键词: Collaborative; Research; Dark; Energy; Survey

AST-0813534/0812790/0813575Mohr/Jarvis/PeoplesThe Dark Energy Survey (DES) is an intermediate term survey, in the years 2011-2016, that will address the nature of dark energy using four independent and complementary techniques: (1) a galaxy cluster survey in collaboration with NSF's South Pole Telescope Sunyaev-Zel'dovich Effect mapping experiment, (2) a cosmic shear measurement, (3) a galaxy angular clustering measurement within redshift shells to z=1.35, and (4) distance measurements to approximately 2000 type 1a supernovae (SNe Ia). The DES will produce about 170Tb of raw data, processed into science-ready images and catalogs and co-added into deeper, higher quality images and catalogs. In total, the DES dataset will approach 2Pb. This data volume and the survey duration require a new type of data management system with a high degree of automation and robustness, including integrated quality assurance testing. The present collaborative project will build the DES Data Management (DESDM) system. DESDM has been designed and tested, using both simulated data and real data from the Mosaic2 camera. The project team has created working prototypes of many elements of DESDM and will now transform those prototypes into the production version of the DESDM system.DES is a complex international, multi-agency project, with far-reaching foreign and domestic impacts. It is organized into DESDM and two other themes. These are the Dark Energy Camera (DECam), to be installed at the 4-meter Blanco telescope of the Cerro Tololo Interamerican Observatory (CTIO), and the facilities improvement and integration project at the CTIO (CTIOFP). The CTIOFP is supported by CTIO, a component of NSF's National Optical Astronomy Observatory, and DECam is supported by the Department of Energy (DoE) and by international and institutional partners. DESDM is supported by NSF and also by the project partners.The DESDM project is working collaboratively with other large scale imaging projects to develop common solutions, and will be making all produced software available to the community. Students will play important role, developing expertise in aspects of scientific data management, high performance computing, and the development of science analysis tools. The DESDM system will archive the DES data, enabling public access and science analyses (after a one year proprietary period) through a provided scientific analysis interface that will use high performance computing resources at the NSF's National Center for Supercomputing Applications (NCSA), operated by the University of Illinois. A separate part of the project not covered by this award is a DECam Reduction Portal, supporting non-DES users of the DECam to reduce their own data.

AST-0813534/0812790/0813575Mohr/Jarvis/Peoples暗能量调查 (DES) 是一项中期调查，将于 2011-2016 年进行，将使用四种独立且互补的技术来解决暗能量的本质：(1) 星系与 NSF 南极望远镜 Sunyaev-Zel'dovich 合作进行的聚类调查 效应绘图实验，(2) 宇宙剪切测量，(3) 红移壳层内 z=1.35 的星系角聚类测量，以及 (4) 大约 2000 个 1a 型超新星 (SNe Ia) 的距离测量。 DES 将产生约 170Tb 的原始数据，处理成科学就绪的图像和目录，并共同添加到更深、更高质量的图像和目录中。 总的来说，DES 数据集将接近 2Pb。 这样的数据量和调查持续时间需要一种具有高度自动化和稳健性的新型数据管理系统，包括集成的质量保证测试。 目前的合作项目将构建 DES 数据管理（DESDM）系统。 DESDM 已使用来自 Mosaic2 相机的模拟数据和真实数据进行设计和测试。 项目团队已经创建了 DESDM 的许多要素的工作原型，现在将把这些原型转化为 DESDM 系统的生产版本。DES 是一个复杂的国际、多机构项目，在国内外都有深远的影响。 它分为 DESDM 和其他两个主题。 这些是暗能量相机（DECam），将安装在托洛洛山美洲天文台（CTIO）的4米布兰科望远镜上，以及CTIO的设施改进和集成项目（CTIOFP）。 CTIOFP 得到 CTIO（NSF 国家光学天文台的组成部分）的支持，DECam 得到能源部 (DoE) 以及国际和机构合作伙伴的支持。 DESDM 得到了 NSF 和项目合作伙伴的支持。DESDM 项目正在与其他大型成像项目合作开发通用解决方案，并将向社区提供所有生产的软件。 学生将发挥重要作用，发展科学数据管理、高性能计算和科学分析工具开发方面的专业知识。 DESDM 系统将归档 DES 数据，通过提供的科学分析界面实现公众访问和科学分析（经过一年的专有期），该界面将使用 NSF 国家超级计算应用中心 (NCSA) 的高性能计算资源，该中心由伊利诺伊大学。 该奖项未涵盖的项目的一个单独部分是 DECam Reduction Portal，支持 DECam 的非 DES 用户减少自己的数据。