HR: 09:45h
AN: G31A-08    [PDF]
TI: Evaluating Available Mean Sea Surfaces and Geoid Models at High Latitudes Within the GOCINA Project.
AU: * Knudsen, P
EM: pk@kms.dk
AF: National survey - KMS, Rentemestervej 8, Copenhagen NV, 2400 Denmark
AB: A major goal of the EU project GOCINA (Geoid and Ocean Circulation in the North Atlantic Ocean) is to determine an accurate geoid in the region between Greenland and the UK and, thereby, create a platform for validation of future GOCE Level 2 data and higher order scientific products. The central quantity bridging the geoid and the ocean circulation is the mean dynamic topography, which is the difference between the mean sea surface and the geoid. The best available geoid models (EGM96, GRACE, CHAMP, GOCINA03) will be evaluated against present mean sea surface models (i.e. CLS01, GSFC00, KMS03) comparing the differences with state of the art Mean Dynamic Topography models. An extended comparison in the Arctic Ocean will also be presented to demonstrate the impact of improved geoid and mean sea surface modelling. Particularly using the GRACE derived geoid models, and the KMS03 mean sea surface
UR: http://www.gocina.dk
DE: 1200 GEODESY AND GRAVITY
DE: 1234 Regional and global gravity anomalies and Earth structure
DE: 1299 General or miscellaneous
DE: 1600 GLOBAL CHANGE (New category)
SC: Geodesy [G]
MN: 2003 Fall Meeting