SE32A:
Gravity and Gravity Gradiometry:  Instrumentation and Applications

Submit an Abstract to this Session

Session ID#: 6195

Session Description:
Local variations in gravity and gravity gradient provide clues to understand sub-surface geology critical for many earth science applications.  Relative gravimeters measure spatial changes in gravity acceleration within a survey area.  Absolute gravimeters provide the actual gravity acceleration at a measurement point on the earth's surface.  Dynamic gravimeters are used for continuous relative measurements of gravity from an airplane or a ship.  Borehole gravimeters are deployed to obtain relative gravity measurements in small diameter boreholes to depths of several kilometres.  Gravity gradiometers mounted in aircraft provide continuous full tensor measurements of the gravity gradient.  Gravity and gravity gradient measurements are modeled to help interpret density distribution, excess mass and tonnage.  Permanently installed gravimeters and repeated absolute gravity surveys provide time lapse data for monitoring ongoing changes in near surface densities, which are often caused by human activity, allowing opportunities for appropriate and timely remedial actions to be implemented.
Primary Convener:  Chris Nind, Self Employed, Washington, DC, United States
Convener:  Peter Diorio, CGU, Toronto, ON, Canada
Chairs:  Chris Nind, CGU, Toronto, ON, Canada and Peter Diorio, CGU, Toronto, ON, Canada
OSPA Liaison:  Chris Nind, Self Employed, Washington, DC, United States
Index Terms:

0920 Gravity methods [EXPLORATION GEOPHYSICS]
0994 Instruments and techniques [EXPLORATION GEOPHYSICS]
1217 Time variable gravity [GEODESY AND GRAVITY]
1219 Gravity anomalies and Earth structure [GEODESY AND GRAVITY]

Abstracts Submitted to this Session:

SE32A-01
Borehole Gravity Mining Applications Case Studies (34389)
Roman Wasylechko, KEGS, Toronto, ON, Canada
SE32A-02
The Walferdange Underground Laboratory for Geodynamics in Luxembourg (Invited) (33786)
Olivier Francis, University of Luxembourg, Luxembourg, Luxembourg
SE32A-03
Using Airborne Gravimetry to Develop a Geoid-based Vertical Datum for the U.S. with the Redefinition of the American Vertical Datum (GRAV-D) Project (Invited) (33802)
Monica Youngman1, Vicki A Childers1, Theresa Damiani1, Sandra A Preaux2, Simon A Holmes3 and Carly Weil2, (1)NOAA, National Geodetic Survey, Silver Spring, MD, United States, (2)DST, Silver Spring, MD, United States, (3)SGT inc., Greenbelt, MD, United States
SE32A-04
Gravitational Wave Astronomy: Listening To The Universe (Invited) (35317)
Giles Hammond, University of Glasgow, Physics and Astronomy, Glasgow, United Kingdom
SE32A-05
Recent Advances in the FG5 Absolute Gravity Meter, Dynamic Gravity Meters, the Gphone, and Borehole Gravity (Invited) (36095)
Timothy M Niebauer1, Andrew Hugill2, Ryan Billson1, Fred Klopping1 and Patricia MacQueen3, (1)Micro-g LaCoste, Inc., R&D, Lafayette, CO, United States, (2)Scintrex Ltd., Gravity, Toronto, ON, Canada, (3)Cornell University, Earth and Atmospheric Sciences, Ithaca, NY, United States
SE32A-06
Gravity and Gravity Gradient Monitoring of Fluid Migration in SAGD Reservoirs: A modeling study (34646)
Alexander Braun, Queens University, Geological Sciences and Geological Engineering, Kingston, ON, Canada and E Judith Elliott, Queens University, Geological Science and Geological Engineering, Kingston, ON, Canada
SE32A-07
Using Airborne Gravity Data to De-Risk Petroleum Exploration in Frontier Areas: An Example from the Cauca-Patia Basin of Colombia (34440)
Malcolm Argyle, Sander Geophysics Ltd., Ottawa, ON, Canada and David Westlund, Gran Tierra Energy Inc., Bogota, Colombia
SE32A-08
Kauring Test Range Airborne Gravity Comparisons using AIRGrav Data Incorporating Measured Horizontal Components (34418)
Stefan Elieff and Stephen Ferguson, Sander Geophysics Ltd, Ottawa, ON, Canada
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