HR: 0800h
AN: G41A-0341    [Abstracts]
TI: Aerogravity and Lidar Data Over Southwestern Florida
AU: * Roman, D R
EM: dan.roman@noaa.gov
AF: National Geodetic Survey NOAA, 1315 East-West Highway, Silver Spring, MD 20910 United States
AU: Brozena, J M
EM: john.brozena@nrl.navy.mil
AF: Marine Physics Branch Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375 United States
AU: Childers, V A
EM: Vicki.childers@nrl.navy.mil
AF: Marine Physics Branch Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC 20375 United States
AU: Luthcke, S B
EM: Scott.B.Luthcke@nasa.gov
AF: Laser Remote Sensing Branch NASA, Goddard Space Flight Center, Greenbelt, MD 20771 United States
AB: Aerogravity and lidar information collected along the southwestern shoreline of Florida have been processed to provide insights into the geoid, mean dynamic topography, and the ocean surface. Data were collected at about 20 km track spacing at an altitude of about 8 km at airspeeds of about 280 knots in a Cessna Citation. The gravity data have been filtered along track also at 20 km wavelength. These data were then compared with both other upward continued gravity data and that predicted by an Earth Gravity Model incorporating GRACE results. These data have served to validate terrestrial and oceanic (shipborne and airborne) gravity data, to mitigate the previous gap in data in the littoral regions, and to provide a better estimate of the geoid heights at the shoreline. These heights, in turn, were compared to leveled heights at tidal bench marks above the NAVD 88 vertical datum. The lidar data were separately processed and used to derive profiles where the mean dynamic topography has been estimated. Along some near shore profiles, the geoid and MDT models are seen to compare favorably with the actual observed ocean heights at tidal bench marks.
DE: 1204 Control surveys
DE: 1214 Geopotential theory and determination (0903)
DE: 1222 Ocean monitoring with geodetic techniques (1225, 1641, 3010, 4532, 4556, 4560, 6959)
DE: 1229 Reference systems
DE: 4594 Instruments and techniques
SC: Geodesy [G]
MN: Fall Meeting 2005