Large scale ocean circulation from the GRACE GGM01 Geoid

摘要: [1] The GRACE Gravity Model 01 (GGM01), computed from 111 days of K-band ranging (KBR) data, is differenced a global mean sea surface (MSS) decade satellite altimetry to determine dynamic ocean topography (DOT). As test the GGM01 gravity model, large-scale zonal and meridional geostrophic currents are compared with those derived hydrographic surface. Reduction in residual RMS between two by 30–60% (and increased correlation) indicates that geoid represents dramatic improvement over older models, which were developed multiple tracking altimetry, measurements. For first time, all major current systems clearly observed DOT space-based