Research in Geodesy at The Ohio State University's Department of Civil and Environmental Engineering and Geodetic Science include applications of Global Positioning System (GPS) satellites for engineering and scientific applications, such as airborne gravity measurement using INS, and GPS-Buoy sea level monitoring; maintanence and realization of the terrestrial reference frame, the study of Earth system dynamics and its role in global climate change by understanding the mechanisms of mass redistribution and angular momentum exchange using geophysical observables: Earth's gravity field and its changes, Earth's variable rotation, oceanic circulation, ice sheet and glacier mass balance, hydrological circulation, and air-sea interactions; precision orbit determination, instrument calibration/verification for satellite altimetric satellites and their applications such as determination of global sea level variations, El Nino/La Nina tracking, dynamic topography, ocean tides, mean sea surface, and bathymetry; and determination of local and global gravity field and its variations using advanced gravity field mapping mission (GRACE and CHAMP) and other satellite and in situ measurements.

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