G008-0003
GGOS Bureau of Networks and Observations: Network Infrastructure and Related Activities
Thursday, 10 December 2020
Poster
Michael R Pearlman, Center for Astrophysics, Radio and Geoastronomy Division, Cambridge, MA, United States, Carey E Noll, NASA Goddard Space Flight Center, Code 61A, Greenbelt, MD, United States, Dirk Behrend, NVI, Inc./NASA GSFC, Greenbelt, MD, United States, Allison B Craddock, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, Erricos C Pavlis, Joint Center for Earth Systems Technology, Baltimore, MD, United States, Jérôme Saunier, IGN, Paris, France, Elizabeth Bradshaw, National Oceanography Center, BODC, Liverpool, United Kingdom, Riccardo Barzaghi, Politecnico di Milano, Milano, Italy, Daniela Thaller, BKG Federal Agency for Cartography and Geodesy, Leipzig, Germany, Benjamin Männel, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Ryan Hippenstiel, National Geodetic Survey, Silver Spring, MD, United States, Roland Pail, TU München, MüNchen, Germany, C.K. Shum, The Ohio State University, Division of Geodetic Science, School of Earth Sciences, Columbus, OH, United States and Nicholas Brown, Geoscience Australia, National Geodesy Section, Positioning and Community Safety Division, Geoscience Australia, Canberra, ACT, Australia
Abstract:
The GGOS Bureau of Networks and Observations works with the IAG Services (IVS, ILRS, IGS, IDS, IGFS, and PSMSL) to advocate for the expansion and upgrade of space geodesy networks for the maintenance and improvement of the reference frame and other applications, as well as for the integration with other techniques, including absolute gravity and sea level measurements from tide gauges. New sites are being established following the GGOS concept of “core” and co-location sites, and new technologies are being implemented.
The Bureau holds meetings frequently, providing the opportunity for representatives from the services to meet and share progress and plans, and to discuss issues of common interest. It also monitors the status and projects the evolution of the network based on information from the current and expected future participants. Of particular interest at the moment is the integration of gravity and tide gauge networks and the forthcoming establishment of the new absolute gravity reference frame.
The IAG Committees and Joint Working Groups play an essential role in the Bureau activity. The Standing Committee on Performance Simulations and Architectural Trade-offs (PLATO) uses simulation and analysis techniques to project future network capability and to examine trade-off options. The Committee on Data and Information is working on a strategy for a GGOS metadata system. The Committee on Satellite Missions is working to enhance communication with the space missions, to advocate for missions that support GGOS goals. The IERS Working Group on Site Survey and Co-location (also participating in the Bureau) is working to enhance standardization in procedures, outreach and to encourage new survey groups to participate.
We will give a brief update on the status and projection of the network infrastructure of the next several years, and the progress and plans of the Committees/Working Group in their critical role in enhancing data product quality and accessibility to the users.
