The DTU12MDT global mean dynamic topography and ocean circulation model

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Abstract

The Gravity and Ocean Circulation Experiment - GOCE satellite mission measure the Earth gravity field with unprecedented accuracy leading to substantial improvements in the modelling of the ocean circulation and transport. In this study of the performance of GOCE, a newer gravity model has been combined with the DTU10MSS mean sea surface model to construct a global mean dynamic topography model named DTU10MDT. The results of analyses clearly demonstrated the value of the GOCE mission. Both the resolution and the estimation of the surface currents have been improved significantly compared to results obtained using pre-GOCE gravity field models. The results of this study show that geostrophic surface currents associated with the mean circulation have been further improved and that currents having speeds down to 5 cm/s have been recovered.
Original languageEnglish
Title of host publicationProceedings of ESA Living Planet Symposium
PublisherEuropean Space Agency
Publication date2013
Publication statusPublished - 2013
EventESA Living Planet Symposium — 2013 - Edinburgh, United Kingdom
Duration: 9 Sep 201313 Sep 2013

Conference

ConferenceESA Living Planet Symposium — 2013
CountryUnited Kingdom
CityEdinburgh
Period09/09/201313/09/2013

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