DOI: 10.1002/grl.50716
论文题名: The new ESA satellite-only gravity field model via the direct approach
作者: Bruinsma S.L. ; Förste C. ; Abrikosov O. ; Marty J.-C. ; Rio M.-H. ; Mulet S. ; Bonvalot S.
刊名: Geophysical Research Letters
ISSN: 0094-8800
EISSN: 1944-8531
出版年: 2013
卷: 40, 期: 14 起始页码: 3607
结束页码: 3612
语种: 英语
英文关键词: geostrophic ocean circulation
; GOCE
; satellite-only gravity field model
Scopus关键词: GOCE
; Gravitational model
; Gravity anomalies
; Gravity field model
; Gravity recovery and climate experiments
; Mission objectives
; Ocean circulation
; Orbit determination
; Geodetic satellites
; Oceanography
; Climate models
; geodynamics
; GOCE
; GPS
; gravity field
; numerical model
; oceanic circulation
; oceanography
; resolution
; satellite imagery
; steady-state equilibrium
英文摘要: Reprocessed Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) gravity gradient data were combined with data from Laser Geodynamics Satellite (LAGEOS) 1/2 and Gravity Recovery and Climate Experiment (GRACE) to generate a satellite-only gravity field model to degree 260 using the direct approach, named DIR-R4. When compared to Earth Gravitational Model 2008 (EGM2008), it is more accurate at low to medium resolution thanks to GOCE and GRACE data. When compared to earlier releases of ESA GOCE models, it is more accurate at high degrees owing to the larger amount of data ingested. It is also slightly more accurate than ESA's fourth release of the time-wise model (TIM-R4), as demonstrated by GPS/leveling, orbit determination tests, and an oceanographic evaluation. According to the formal, probably too optimistic by a factor of 2-2.5, cumulated geoid (1.3 cm) and gravity anomaly (0.4 mGal) errors at 100 km resolution, the GOCE mission objectives have been reached. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880602118&doi=10.1002%2fgrl.50716&partnerID=40&md5=5101f3dcb4a62ec81e0cbb7e175dd70d
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6064
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Centre National d'Etudes Spatiales, FR-31400 Toulouse, France
Recommended Citation:
Bruinsma S.L.,Förste C.,Abrikosov O.,et al. The new ESA satellite-only gravity field model via the direct approach[J]. Geophysical Research Letters,2013-01-01,40(14).