2013 UNAVCO Community & Facility Bridge Proposal: Geodesy Revealing the Earth in Action

1255679米勒NSF和UNAVCO， Inc.之间的合作协议（CA）支持国家地球科学全球定位系统（GPS）和大地测量技术支持设施(？联阿援助团设施？)。支持的活动包括GPS和大地测量技术领域项目的规划和工程支持、持续运行的GPS网络的主动管理、战役GPS项目和地面激光扫描（TLS）项目支持、技术开发和测试、数据服务以及教育和社区参与活动。所有这些活动都是联阿援助团代表地球镜板块边界观测站管理的活动之外的活动，这些活动目前由EAR/地球镜方案管理的合作协定单独资助。对该CA的支持包括美国国家科学基金会地球科学和极地计划分部的资金以及美国国家航空航天局（NASA）的支持。UNAVCO, Inc.是一家非营利性公司，其董事会由UNAVCO成员选举产生，主要由在大地测量学方面有积极研究项目的美国学术机构组成。目前有100多个成员机构和近80个准成员（无投票权成员），其中包括外国大学，国际政府天文台，学院和机构。值得注意的是，自2007年提交上一份融资支持提案以来，该联盟成员已增长了约53%。在CA下支持的具体活动包括：1)维护一个最先进的GPS池（目前在设施池中有350个接收器）和安装便携式三脚架？地面激光扫描仪？（TLS；目前6）提供给nsf支持的科学家；2)继续支持维护、遥测和覆盖全球的半永久连续GPS站观测资料的最终存档（目前有2,200个cCPS站向联阿援助团设施存档提供数据，不包括组成PBO的约1,110个cGPS站）；3)提供专门从事NSF和NASA资助的GPS和TLS项目规划、后勤和现场工程支持的人员（每年支持约60-70个非极地地区项目，每年支持30-40个极地项目，每年支持约30-40个TLS项目，后者快速增长）；4)维护和运行NASA全球GPS网络（GGN）中的61个站点，GGN是国际GPS网络（IGS）的一个子集，为国际地球自转和参考系统服务（IERS）提供国际地面参考框架（ITRF）解决方案所需的关键数据；5)开发和维护GPS数据档案(目前接近39tb的存储空间，并且由于近100个cGPS站点的发展而快速增长，这些站点现在以高速率记录观测，1hz或更高，以及基于web的访问工具；6)维护和开发用于干涉测量（InSAR）研究与构造、火山、地震和地下流体动力学相关的连续变形场的合成孔径雷达（SAR）场景的存档和分发系统（存档包含来自欧洲航天局ERS 1、ERS2、EnviSAT、加拿大RadarSAT和德国TerraSAR X SAR卫星的数千个星载SAR图像场景）；约20万亿美元)；7)规划和协调各种大地测量社区活动（如科学研讨会、指导委员会会议）；8)开发、评估和测试新的商业GPS和大地测量技术（例如，天线相位中心校准，半永久性cGPS和同址环境传感器站的新型功率和遥测解决方案，测试能够记录新的美国GPS、欧洲伽利略和俄罗斯GLONASS载波频率的新型GNSS接收器）；9)使用精密大地测量技术，确保代表美国学术研究界的代表性和响应性的治理过程；10)向学生和公众提供关于精确大地测量学研究应用、地球科学和联安援助团的教育和外联材料以及基于网络的工具。

1255679MillerThis Cooperative Agreement (CA) between NSF and UNAVCO, Inc. supports continued management and operation of the national Earth sciences Global Positioning System (GPS) and geodetic technology support facility (?the UNAVCO Facility?). Activities supported include planning and engineering support for GPS and geodetic technology field projects, active management of continuously operated GPS networks, campaign GPS project and terrestrial laser scanning (TLS) project support, technology development and testing, data services and education and community engagement activities. All these activities are external to activities UNAVCO manages on behalf of the EarthScope Plate Boundary Observatory (PBO) and which are currently and separately funded via a Cooperative Agreement managed by the EAR/EarthScope Program. Support for this CA includes NSF Division of Earth Sciences and Polar Programs funding as well as support from the National Aeronautics and Space Agency (NASA). UNAVCO, Inc. is a non-profit corporation governed by a Board of Directors elected by the UNAVCO membership comprised predominantly of U.S. academic institutions with active research programs in geodesy. There are currently over 100 member institutions and nearly 80 associate (non-voting members) which including foreign universities, international government observatories, academies, and agencies. It is noteworthy that the consortium membership has grown by some 53% since the time of submission of the last Facility support proposal in 2007. Specific activities to be supported under the CA include: 1) maintenance of a pool of state-of-the-art GPS (currently 350 receivers in the Facility pool) and portable tripod mounted ?terrestrial laser scanners? (TLS; currently 6) available to NSF-supported scientists;2) continuing support for maintenance, telemetry and ultimate archival of semi-permanent continuous GPS station observations with station locations spanning the globe (currently 2,200 cCPS stations provide data to the UNAVCO Facility archive, not counting the ca. 1,110 cGPS station that comprise PBO);3) provision of personnel dedicated to NSF and NASA funded GPS and TLS project planning, logistics and field engineering support (ca. 60-70 non-Polar region projects supported each year and 30-40 Polar projects per year and ca. 30-40 TLS projects supported each year with rapid growth in the latter);4) maintenance and operations of the 61 stations in the NASA Global GPS Network (GGN), a subset of the International GPS Network (IGS) that provides crucial data to the International Earth Rotation and Reference Systems Service (IERS) needed for International Terrestrial Reference Frame (ITRF) solutions;5) development and maintenance of a GPS data archive (now approaching 39 Tb of storage with rapid growth forced by the evolution of near 100 cGPS stations that now record observation at high rate , 1 Hz or greater, and web-based access tools;6) maintenance and development of an archive and distribution system for synthetic aperture radar (SAR) scenes used for interferometric (InSAR) study of the continuum deformation fields associated with tectonic, volcanic, seismic and subsurface fluid dynamics over spatial scales of 100s of kilometers (the archive contains thousands of scenes of spaceborne SAR imagery from the European Space Agency ERS 1, ERS2, EnviSAT, Canadian RadarSAT and German TerraSAR X SAR satellites; some 20 Tb of holdings);7) planning and coordination of various geodetic community activities (e.g., scientific workshops, steering committee meetings);8) development, evaluation and testing of new commercial GPS and geodetic technologies (e.g., antenna phase center calibrations, novel power and telemetry solutions for semi-permanent cGPS and co-located environmental sensor stations, testing of new GNSS capable receivers that are capable of recording new U.S. GPS, European Galileo and Russian GLONASS carrier frequencies);9) ensuring a representative and responsive governance process on behalf of the U.S. academic research community using precision geodetic techniques; and10) provision of education and outreach materials and web-based tools to students and the public about precision geodetic research applications, the Earth sciences, and UNAVCO.