HR: 1400h
AN: G33B-04    [Abstracts]
TI: Regional Geoid Modeling Compared to Ocean Surface Observations
AU: * Roman, D R
EM: dan.roman@noaa.gov
AF: NOAA's National Geodetic Survey, SSMC3, N/NGS6 1315 East-West Highway, Silver Spring, MD 20910, United States
AU: Saleh, J
EM: jarir.saleh@noaa.gov
AF: Earth Resource Technologies, SSMC3, N/NGS6 1315 East-West Highway, Silver Spring, MD 20910, United States
AU: Wang, Y M
EM: yan.wang@noaa.gov
AF: NOAA's National Geodetic Survey, SSMC3, N/NGS6 1315 East-West Highway, Silver Spring, MD 20910, United States
AB: Aerogravity over a limited coastal region of the northern Gulf of Mexico enhanced and rectified the local gravity field signal. In turn, these data improved the derived geoid height model based on comparison with dynamic ocean topography (DOT) and tide gage information at eleven stations. Additionally, lidar observations were analyzed along nearly 50 profiles to estimate the reliability of these models into the offshore region. The overall comparison shows dm-level agreement between the various geoid and DOT models and ocean surface observations. An approximate 30 cm bias must still be explained; however, the results of this study point to the potential for further cooperative studies between oceanographers and geodesists.
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
SC: Geodesy [G]
MN: 2007 Joint Assembly