KEGS Seminar - Dr. Alexander Braun

   

Gravimetry revisited: 

nGal, multi-scale fusion, gradiometry, reservoir monitoring



Professor Alexander Braun 
Queen's University, Department of Geological Sciences and Geological Engineering 


Tuesday, November 17th
4:30 p.m.  

Gamble Hall
Geological Survey of Canada
615 Booth Street

 

Abstract

Gravimetry surveys are conducted from satellite, airborne and terrestrial platforms with sensitivities ranging from mGal to nGal, and targets from oil and gas as well as mineral resources. More often than not, a single survey using only one technique/instrument/platform is insufficient for characterizing a target. This talk will discuss three different examples of gravimetry surveys, i) satellite gravimetry for Earth systems observation, ii) fusion of satellite, airborne and terrestrial gravimetry in North America, and iii) time-lapse superconducting gravimetry for reservoir monitoring. Solutions for overcoming and mitigating challenges posed by each platform/instrument/target will be discussed. 

 

Biography

Alexander Braun is a geophysicist (Dr. phil. nat., Johann Wolfgang Goethe University, Frankfurt/Main, 1999) with expertise in theoretical seismology, geodynamics, potential fields and satellite geophysics. He is internationally known for his research using satellite altimetry, Synthetic Aperture Radar and space gravimetry to characterize and monitor Earth systems processes including glacial isostatic adjustment, vertical crustal motion, sea level, sea ice and glaciers. He is an Associate Professor of Applied Geophysics at Queen’s University, Department of Geological Science and Geological Engineering and previously held positions at GeoForschungsZentrum Potsdam, Ohio State University, University of Calgary and University of Texas at Dallas. His current research focuses on UAV magnetometry, superconducting gravimetry, and satellite geophysics.