Publication Date:
2020-02-12
Description:
The main goal of the REAL-GOCE WP320 is the computation of a high-resolution gravity field model up to degree and order 720 or higher in terms of spherical harmonics with a global coverage and an outstanding quality. Compared to the recently available combined gravity field models like EIGEN-5C (Förste et al. 2008), EIGEN-51C (Bruisma et al 2010), EGM 2008 (Pavlis et al. 2008) or GGM03C (Tapley et al. 2007), such a combined model including GOCE data should benefit from the accuracy of the new GOCE satellite gradiometry data in the medium wavelength components (i.e. spatial resolution between about 70 and 100 km) of the Earth’s gravity field. Since July 2010 a first cycle (i.e. about two months) of GOCE gradiometry data is available. Additionally, the first GOCE-only global gravity field models were published by ESA. One of these first GOCE-only models has been computed by GFZ Potsdam and GRGS Toulouse within ESA’s GOCE High Level Processing Facility (GOCE-HPF) by using the so-called direct approach. This model is called GO_CONS_GCF_2_DIR (Bruinsma et al. 2010; Pail et al. 2010) and its data has been used by GFZ within the REAL-GOCE WP320 to compute a preliminary GRACE/GOCE combined satellite-only model. This is an important milestone for the further computation of a combined model including terrestrial data.
Language:
English
Type:
info:eu-repo/semantics/article
Format:
application/pdf
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