O U N

• Main Authors: O. C. D. Omang, D. Solheim, A. Hunegnaw, D. Lysaker, K. Ghazavi, H. Nahav
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: •EIGEN-GL04C – Combined Gravity Field Model; Arctic; Grav; Greenland; Knudsen; Iceland
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.581.8760; http://www.geology.osu.edu/~jekeli.1/iag-commission2/IUGG2007_files/posters/Omang_etal_11997.pdf

• A good quality geoid in addition to mean sea surface height (MSSH) and Mean Dynamic Topography (MDT) will serve as input to ocean circulation and transport studies in the polar region. • Improved determination of MDT will allow assessment of its im-pact on circulation studies and associated climate modeling. Objective • To create a high quality gravimetric geoid covering the OCTAS area. Gravity data •Marine, land and airborne gravity data were selected from the NKG gravity data base. • Land gravity data over Greenland, Iceland and Sval-bard were substituted with latest version of Arctic Grav-ity Project (ArcGP) data. •Marine gravity data has been error screened and ad-justed. •The KMS02 free-air anomalies Andersen and Knudsen (1998) were selected, over ocean areas only, where no other gravity data was available within 20 km. •The effect of the atmosphere on the gravity data has been removed.