Rivers, Matthew A.2012-08-242012-08-242012-06http://hdl.handle.net/1773/20475Senior thesis written for Oceanography 444[Author's Abstract] Geostrophic currents are a balance of a pressure gradient force and the Coriolis force (due to the Earth’s rotation). Scientists historically have used a variety of assumptions to reference geostrophic current profiles, often a particular depth or density. An alternative is to use directly measured currents from an Acoustic Doppler Current Profiler (ADCP), together with ship speed measured from GPS navigational fixes, to provide a reference for geostrophic currents. In this study the geostrophic currents are compared, using different reference depths, with the ADCP recorded currents.en-USOcean circulationAcoustic Doppler Current ProfilerOcean currents--Measurement--Eastern Tropical North Pacific OceanArticle