NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Compilation of Published Estimates of Annual Geocenter Motions Using Space GeodesyThe definition of the term "geocenter motion" depends on the adopted origin of the reference frame. Common reference frames used in Space Geodesy include: the center of mass of the whole Earth (CM), the center of mass of the Solid Earth without mass load (CE), and the center of figure of the outer surface of the Solid Earth (CF). There are two established definitions of the term geocenter: one, the vector offset of CF relative to CM and, two, the reverse, the vector offset of CM relative to CF. Obviously, their amplitude is the same and their phase differs by 180 deg. Following Dong et al. [2003], we label the first X(sub CF, sup CM) and the second X(sup CF, sup CM) (i.e., the superscript represents the frame, the subscript represents any point in the frame).
Document ID
20050207344
Acquisition Source
Headquarters
Document Type
Other
Authors
Elosegui, P. (Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Date Acquired
September 7, 2013
Publication Date
May 30, 2005
Subject Category
Geosciences (General)
Funding Number(s)
CONTRACT_GRANT: NAG5-13748
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available