Improvement of regional quasi-geoid in Qomolangma(Mt. Everest) and determination of orthometric elevation

被引：0

作者：

Guo Chun-Xi ^{[1
,2
]}

Ning Jin-Sheng ^{[2
]}

Chen Jun-Yong ^{[3
]}

Wang Bin ^{[1
]}

Lu Yang ^{[4
]}

Sun Feng-Hua ^{[5
]}

机构：

[1] State Bur Surveying & Mapping, Geodet Data Proc Ctr, Xian 710054, Peoples R China

[2] Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430079, Peoples R China

[3] State Bur Surveying & Mapping, Beijing 100830, Peoples R China

[4] Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China

[5] Xian Techn Cent Stn Surveying & Mapping, Xian 710054, Peoples R China

来源：

CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2008年 / 51卷 / 01期

关键词：

pike of Qomolangma mountain; earth gravity field model; isostasy model; quasi-geoid; GPS levelling; remove-restore technology;

D O I：

暂无

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In the paper the Qomolangma local quasi-geoid with 2.5' x 2.5' high resolution and 9 cm high precision is for the first time determined by using the gravity data and SRTM3, 1: 50000 DEM, GTOPO30 topography data based on EGM96, WDM94, IGG05B, DQM2000D and CG03C of the reference gravity field models, as well as 44 GPS levelling control points in the Qomolangma mountain area. The remove-restore technology is used for the determination of the local quasi-geoid. According to the local quasi-geoid the height anomaly of the pike of Qomolangma mountain has been computed. In addition, the conversion of normal height into orthometric height of the pike of Qomolangma mountain is completed by using the new observed gravity data along the mountain-climbing way and topography data in the Qomolangma mountain area on the basis of the rigorous theory of the gravity reduction and the remove-restore technology.

引用

页码：101 / 107

页数：7

共 7 条

[1] BIAN SF, 1999, 90 BIRTHD CHEN AC
[2] GUAN Z, 1981, EARTHS SHAPE GRAVITY, P249
[3] GUAN ZL, 1997, THEORY METHOD LOCAL, P78
[4] [郭春喜 Guo Chunxi], 2002, [测绘学报, Acta Geodetica et Cartographica Sinica], V31, P201
[5] GUO CX, 2000, B SURVEYING MAPPING, V9, P3
[6] Li J., 2003, THEORY EARTH GRAVITY, P148
[7] LU ZL, 1996, THEORY METHOD EARTH, P265

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