DocumentCode
1902347
Title
Notice of Retraction
The Formation and Analysis of the Earth Gravitation Model Based on Point Masses
Author
Jianqiang Wang ; Zhiqi Yu
Author_Institution
Sch. of Geodesy & Geomatics, Wuhan Univ., Wuhan, China
fYear
2010
fDate
25-26 Dec. 2010
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The theory of the point-mass model has been widely used to represent the local gravity field. In this paper, the approximation theory of point-mass model is briefly introduced, and the characteristics of the elements in the coefficient matrix for the model construction are analyzed by numerical calculation. The data of gravity anomaly is calculated by using EGM2008 with degree and order 720 in the region of 32°~34°N and 103°~105°N. The four-tier point-mass groups based on the geopotential model with degree and order 36 from low frequency to high frequency are applied to approximate the gravity field. The results of the tests show that the truncation error of gravity disturbance created by using the point-mass model is less than 2 mGal on the radial direction and there is an optimal truncation error for some certain spectrum gravity field in the space.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The theory of the point-mass model has been widely used to represent the local gravity field. In this paper, the approximation theory of point-mass model is briefly introduced, and the characteristics of the elements in the coefficient matrix for the model construction are analyzed by numerical calculation. The data of gravity anomaly is calculated by using EGM2008 with degree and order 720 in the region of 32°~34°N and 103°~105°N. The four-tier point-mass groups based on the geopotential model with degree and order 36 from low frequency to high frequency are applied to approximate the gravity field. The results of the tests show that the truncation error of gravity disturbance created by using the point-mass model is less than 2 mGal on the radial direction and there is an optimal truncation error for some certain spectrum gravity field in the space.
Keywords
boundary-value problems; gravity; numerical analysis; EGM2008; Earth gravitation model; coefficient matrix elements; geopotential model; gravity anomaly; gravity disturbance truncation error; gravity field approximation; local gravity field; numerical calculation; point mass groups; point mass model approximation theory; Analytical models; Approximation methods; Computational modeling; Earth; Finite wordlength effects; Gravity; Numerical models;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on
Conference_Location
Wuhan
ISSN
2156-7379
Print_ISBN
978-1-4244-7939-9
Type
conf
DOI
10.1109/ICIECS.2010.5678404
Filename
5678404
Link To Document