globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060027
论文题名:
GRGM900C: A degree 900 lunar gravity model from GRAIL primary and extended mission data
作者: Lemoine F.G.; Goossens S.; Sabaka T.J.; Nicholas J.B.; Mazarico E.; Rowlands D.D.; Loomis B.D.; Chinn D.S.; Neumann G.A.; Smith D.E.; Zuber M.T.
刊名: Geophysical Research Letters
ISSN: 0094-10041
EISSN: 1944-9772
出版年: 2014
卷: 41, 期:10
起始页码: 3382
结束页码: 3389
语种: 英语
英文关键词: GRAIL ; KBRR data ; lunar gravity ; Moon ; orbit determination ; planetary geodesy
Scopus关键词: Earth sciences ; Geophysics ; Moon ; Global correlation ; GRAIL ; Gravity field solution ; KBRR data ; Lunar gravity ; Orbit determination ; Polar Regions ; Spherical harmonics ; Moon bases ; data set ; geodesy ; gravity field ; Moon ; numerical model ; orbit determination ; power law ; satellite mission ; topographic mapping ; tracking
英文摘要: We have derived a gravity field solution in spherical harmonics to degree and order 900, GRGM900C, from the tracking data of the Gravity Recovery and Interior Laboratory (GRAIL) Primary (1 March to 29 May 2012) and Extended Missions (30 August to 14 December 2012). A power law constraint of 3.6 ×10-4/ℓ2 was applied only for degree ℓ greater than 600. The model produces global correlations of gravity, and gravity predicted from lunar topography of ≥ 0.98 through degree 638. The model's degree strength varies from a minimum of 575-675 over the central nearside and farside to 900 over the polar regions. The model fits the Extended Mission Ka-Band Range Rate data through 17 November 2012 at 0.13 μm/s RMS, whereas the last month of Ka-Band Range-Rate data obtained from altitudes of 2-10 km fit at 0.98 μm/s RMS, indicating that there is still signal inherent in the tracking data beyond degree 900.© 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901384203&doi=10.1002%2f2014GL060027&partnerID=40&md5=da795d547ae1645b71edbf6cf85f7549
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7305
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作者单位: NASA Goddard Space Flight Center, Greenbelt, MD, United States

Recommended Citation:
Lemoine F.G.,Goossens S.,Sabaka T.J.,et al. GRGM900C: A degree 900 lunar gravity model from GRAIL primary and extended mission data[J]. Geophysical Research Letters,2014-01-01,41(10).
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