G14A:
Gravity, Geoid, and Height Systems Posters

Submit an Abstract to this Session

Session Title - en français: Gravité, Géoïde et Systèmes altimétriques

Session ID#: 6070

Session Description:
In 2013, Canada released a new height reference system that is defined by an equipotential surface and realized by a geoid model. This new vertical datum is compatible with today’s Global Navigation Satellite Systems, which provide efficiently accurate 3D positioning. Geoid-based datum is replacing the levelling-construct vertical datum.  USA and Mexico are also moving in the same direction.  USA is currently collecting a new set of gravity data by airborne technique throughout the continental USA, Alaska, Hawaii and territories in support to geoid modelling.

The session is to bring discussion on theoretical and practical development of regional geoid models, the collection and analysis of data required for the establishment of geoid-based datum, and roadmap towards a World Height System and height system unification. In addition, presentations on the application of geoid models or height systems in engineering, hydrographic and oceanographic projects are welcome.

OSPA Liaison:  Marc Veronneau, Natural Resources Canada, Ottawa, ON, Canada
Chairs:  Marc Veronneau, Natural Resources Canada, Ottawa, ON, Canada and Yan Ming Wang, NOAA, Boulder, CO, United States
Primary Convener:  Marc Veronneau, Canadian Geodetic Survey, SGB, Natural Resources Canada, Ottawa, ON, Canada
Convener:  Yan Ming Wang, National Geodetic Survey, NOAA, Silver Spring, United States
Index Terms:

1214 Geopotential theory and determination [GEODESY AND GRAVITY]
1219 Gravity anomalies and Earth structure [GEODESY AND GRAVITY]
1229 Reference systems [GEODESY AND GRAVITY]
1243 Space geodetic surveys [GEODESY AND GRAVITY]
Co-Sponsor(s):
  • ES - Earth Surface Processes
  • GR - Geomatics and Regional Geology
  • H - Hydrology
  • SE - Solid Earth

Abstracts Submitted to this Session:

 
G14A-0151
Assessment of discontinuities of Helmert’s gravity anomalies on the geoid (34847)
Ismael Foroughi, Petr Vanicek, Robert William Kingdon, Michael Sheng and Marcelo C Santos, Department of Geodesy and Geomatics Engineering, University of New Brunswick, Fredericton, NB, Canada
 
G14A-0152
Progress Update on the U.S. Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project and Lessons Learned for Geoid Modelling (35337)
Monica Youngman1, Vicki A Childers1 and Simon A Holmes2, (1)NOAA, National Geodetic Survey, Silver Spring, MD, United States, (2)SGT inc., Greenbelt, MD, United States
 
G14A-0153
Continuation of Surface Anomalies to the Geoid in Regions of Negative Heights (35407)
Robert W Kingdon, Fugro Airborne Surveys, Mississauga, ON, Canada; University of New Brunswick, Dept. Geodesy and Geomatics Engineering, Fredericton, NB, Canada and Petr Vanicek, University of New Brunswick, Fredericton, NB, Canada
 
G14A-0154
Determination of the spectral weights of satellite models, and terrestrial and airborne gravity data for local geoid computations – case studies from GSVS11 and GSVS14 area (35462)
Yan Ming Wang, NOAA/NOS/NGS/NGS6, Silver Spring, United States and Tao Jiang Sr, Chinese Academy of Surveying and Mapping, Beijing, China
 
G14A-0155
Geoid Determination from Airborne Vector Gravimetry: An Example Using AIRGrav Data from Tanzania (35529)
Stephen Ferguson, Sander Geophysics Ltd, Ottawa, ON, Canada and Rene Forsberg, Technical University of Denmark, Space, Kgs. Lyngby, Denmark
 
G14A-0157
Assessments of Recent GRACE and Release 5’s GOCE Global Geopotential Models in Canada (33578)
Jianliang Huang, Canadian Geodetic Survey, SGB, Natural Resources Canada, Ottawa, ON, Canada and Marc Veronneau, Geodetic Survey Division, Ottawa, ON, Canada
 
G14A-0158
Concerning the Roundabout Method to Downward Continuation and the Evaluation of the Far-zone (34315)
Michael Sheng1, Petr Vanicek1, Robert William Kingdon1, Ismael Foroughi1, Juraj Janak2 and Marcelo C Santos1, (1)University of New Brunswick, Department of Geodesy and Geomatics Engineering, Fredericton, NB, Canada, (2)Slovak University of Technology, Department of Theoretical Geodesy, Bratislava, Slovakia
See more of: Geodesy