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

1255679米勒本合作协议（CA）之间的NSF和UNAVCO，Inc.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（？联合国志愿人员组织设施？ 所支助的活动包括为全球定位系统和大地测量技术实地项目提供规划和工程支助，积极管理连续运行的全球定位系统网络，全球定位系统运动项目和地面激光扫描项目支助，技术开发和测试，数据服务以及教育和社区参与活动。 所有这些活动都不属于联合国安哥拉核查团代表地球镜板块边界观测站管理的活动，这些活动目前通过地球镜/地球镜方案管理的一项合作协定单独供资。 对该CA的支持包括NSF地球科学和极地计划部门的资金以及美国国家航空航天局（NASA）的支持。 联合国志愿人员组织是一个非盈利性公司，由UNAVCO成员选出的董事会管理，主要由美国学术机构组成，在大地测量学方面有积极的研究计划。 目前有100多个成员机构和近80个准（无表决权成员），其中包括外国大学，国际政府观察站，学院和机构。 值得注意的是，自2007年提交上一份基金支助提案以来，联合体成员增加了约53%。 在合作协议下支持的具体活动包括：1）维护一批最先进的全球定位系统（目前在设施池中有350个接收器）和安装的便携式三脚架？地面激光扫描仪(TLS 2）继续支持对覆盖地球仪的半永久性连续GPS观测站进行维护、遥测和最终存档（目前有2，200个cCPS观测站向UNAVCO设施档案馆提供数据，不包括CA。1，110个cGPS站，包括PBO）;3）提供专门用于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30-40个TLS项目，后者增长迅速;4）维护和运营美国航天局全球全球定位系统网络（GGN）的61个台站，该网络是国际全球定位系统网络（IGS）的一个子集，为国际地球自转和参考系统服务（IERS）提供解决国际地球参考框架（ITRF）问题所需的关键数据; 5）建立和维护全球定位系统数据档案（目前存储量接近39 Tb，由于近100个cGPS台站的发展，这些台站现在以1 Hz或更高的速率记录观测数据，并使用基于网络的访问工具，因此存储量迅速增长; 6）维护和开发一个合成孔径雷达图像档案和分发系统，用于对与构造、火山、100公里空间尺度上的地震和地下流体动力学（档案包含来自欧洲航天局ERS 1、ERS 2、EnviSAT、加拿大RadarSAT和德国TerraSAR X SAR卫星的数千幅星载SAR图像;大约20 Tb的馆藏）;7）各种大地测量社群活动的规划和协调（例如，科学讲习班、指导委员会会议）;8）开发、评估和测试新的商用全球定位系统和大地测量技术（例如，天线相位中心校准，半永久性cGPS和共址环境传感器站的新型电源和遥测解决方案，能够记录新的美国GPS、欧洲伽利略和俄罗斯GLONASS载波频率的新的具有GNSS能力的接收器的测试;9）使用精确大地测量技术，代表美国学术研究界确保具有代表性和响应性的管理过程;以及10）向学生和公众提供关于精密大地测量研究应用、地球科学和联合国志愿人员组织的教育和宣传材料以及网络工具。

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.