International Symposium
GGHS2020: Gravity, Geoid and Height Systems 2020
“EARTH’S GRAVITY FIELD AND THE NEXT DECADE”
GGHS2020: The 3rd joint meeting of the International Gravity Field Service and Commission 2 of the International Association of Geodesy will be held in Austin, Texas USA, Sep 15-18, 2020.
The science of the earth’s gravity field and its time changes are developing rapidly. From the classical disciplines of geoid determination, geodetic reference systems, navigation and satellite orbit determination, and geophysics and interior earth structure, the gravity field science has in the last decade provided unique data on cryosphere and hydrological changes, and general mass transports in the earth system, primarily due to GRACE satellite mission. At the same time global knowledge of the gravity field details have improved significantly due to the GOCE mission, large-scale airborne gravity campaigns, and the coverage of the oceans by satellite altimetry. New technologies such as cold atom interferometry, miniature gravity sensors, strapdown IMU gravity sensors, and new satellite mission concepts are on the verge of further advancing gravity field science.
The GGHS2020 symposium aims to bring together geodesists, geophysicists and space scientists who work with gravity field observations from space, airborne and surface, novel gravity field observation technologies, gravity field modelling, fundamental height systems, gravity networks, and gravity field change observations for climate change and hydrology.
The GGHS2020 is hosted by Center for Space Research, The University of Texas at Austin. The GGHS2020 follows the successful symposia GGHS2018 in Copenhagen, Denmark and GGHS2016 in Thessaloniki, Greece, and a long prior sequence of biennial International Association of Geodesy/International Gravity Field Service meetings since 2000.
The symposium sessions will be structured around several broad themes:
- Global gravity field modelling
- Local/regional gravity field modelling
- Absolute, Relative and Airborne Gravity – observations and methods
- Height systems and vertical datum unification
- Modern technologies for gravity field sensing – terrestrial, airborne, or spaceborne
- Current and future satellite gravity missions
- Satellite altimetry and applications
- Mass transport and climate-relevant processes
The GGHS2020 venue is the Thompson Conference Center on the University of Texas campus.