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Wave Heights During Hurricane Katrina: An Evaluation Of Ppp And Ppk Measurements Of The Vertical Displacement Of The Gps Antenna, Stephan D. Howden, David Dodd, Leslie C. Bender Iii, Norman Guinasso, Josh Kohut

Faculty Publications

In August 2005 the eye of Hurricane Katrina passed 49 n mi to the west of a 3-m discus buoy operated by the Central Gulf of Mexico Ocean Observing System (CenGOOS). Buoy motions were measured with a strapped-down 6 degrees of freedom accelerometer, a three-axis magnetometer, and a survey-grade GPS receiver. The significant wave heights were computed from the buoy's accelerometer record and from the dual-frequency GPS measurements that were processed in two different ways. The first method was postprocessed kinematic (PPK) GPS, which requires another GPS receiver at a fixed known location, and the other was precise point positioning …