Gravity field recovery from GOCE orbits using the energy conservation approach
The sum of the dissipative energy and energy constant of the GOCE satellite is found by a priori gravity field model at first, and the GOCE dissipative energy is obtained by computing the adjacent epoch difference via the differential method. Then, a gravity field model GOCE-ECP01, which up to the d...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2013-05-01
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| Series: | Geodesy and Geodynamics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674984715300732 |
| _version_ | 1830352613146624000 |
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| author | Su Yong Fan Dongming |
| author_facet | Su Yong Fan Dongming |
| author_sort | Su Yong |
| collection | DOAJ |
| description | The sum of the dissipative energy and energy constant of the GOCE satellite is found by a priori gravity field model at first, and the GOCE dissipative energy is obtained by computing the adjacent epoch difference via the differential method. Then, a gravity field model GOCE-ECP01, which up to the degree and order 80, is recovered by the energy conservation approach from the 103-day precise orbital data of the GOCE satellite collected from November 1, 2009 to January 12, 2010. Finally, the model is compared with existing models EGM96, ITG-CHAMP05S, EIGEN-GRACE2010S, EIGEN-6C and GO_CONS_GCF_2_DIR_R3. The results show that at the same order and degree, the accuracy of model GOCE-EBP01 is higher than those of models EGM96 and ITG-CHAMP05S, but lower than those of models EIGEN-GRACE2010S, EIGEN-6C and GO_CONS_GCF_2_DIR_R3, which is mainly caused by the pole gap. |
| first_indexed | 2024-12-20T00:59:50Z |
| format | Article |
| id | doaj.art-a599c8b303424f9989ad67204591ada3 |
| institution | Directory Open Access Journal |
| issn | 1674-9847 |
| language | English |
| last_indexed | 2024-12-20T00:59:50Z |
| publishDate | 2013-05-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Geodesy and Geodynamics |
| spelling | doaj.art-a599c8b303424f9989ad67204591ada32022-12-21T19:59:01ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472013-05-0142404610.3724/SP.J.1246.2013.02040Gravity field recovery from GOCE orbits using the energy conservation approachSu YongFan DongmingThe sum of the dissipative energy and energy constant of the GOCE satellite is found by a priori gravity field model at first, and the GOCE dissipative energy is obtained by computing the adjacent epoch difference via the differential method. Then, a gravity field model GOCE-ECP01, which up to the degree and order 80, is recovered by the energy conservation approach from the 103-day precise orbital data of the GOCE satellite collected from November 1, 2009 to January 12, 2010. Finally, the model is compared with existing models EGM96, ITG-CHAMP05S, EIGEN-GRACE2010S, EIGEN-6C and GO_CONS_GCF_2_DIR_R3. The results show that at the same order and degree, the accuracy of model GOCE-EBP01 is higher than those of models EGM96 and ITG-CHAMP05S, but lower than those of models EIGEN-GRACE2010S, EIGEN-6C and GO_CONS_GCF_2_DIR_R3, which is mainly caused by the pole gap.http://www.sciencedirect.com/science/article/pii/S1674984715300732energy conservation approachGOCE satellitegravity field modeldissipative energypotential coefficient |
| spellingShingle | Su Yong Fan Dongming Gravity field recovery from GOCE orbits using the energy conservation approach Geodesy and Geodynamics energy conservation approach GOCE satellite gravity field model dissipative energy potential coefficient |
| title | Gravity field recovery from GOCE orbits using the energy conservation approach |
| title_full | Gravity field recovery from GOCE orbits using the energy conservation approach |
| title_fullStr | Gravity field recovery from GOCE orbits using the energy conservation approach |
| title_full_unstemmed | Gravity field recovery from GOCE orbits using the energy conservation approach |
| title_short | Gravity field recovery from GOCE orbits using the energy conservation approach |
| title_sort | gravity field recovery from goce orbits using the energy conservation approach |
| topic | energy conservation approach GOCE satellite gravity field model dissipative energy potential coefficient |
| url | http://www.sciencedirect.com/science/article/pii/S1674984715300732 |
| work_keys_str_mv | AT suyong gravityfieldrecoveryfromgoceorbitsusingtheenergyconservationapproach AT fandongming gravityfieldrecoveryfromgoceorbitsusingtheenergyconservationapproach |