CALCULATION AND FORMULA DEDUCTION OF MAGNETIC DECLINATION AND GEOMAGNETIC INCLINATION
Wang Jiexian 1,2) ; and Li Haojun 1)
1)Department of Surveying and Geomatics, Tongji University, Shanghai 200092
2)Key Laboratory of Modern Engineering Surveying, State Bureau of Surveying and Mapping, Shanghai 200092
Abstract Magnetic declination is the angle between magnetic north and true north, the angle will change with the variation of latitude, longitude and height. The relation between magnetic meridian azimuth and true azimuth is discussed, and the calculation formula of magnetic declination and geomagentic inclination are deduced when the latitude,longitude and height are known.At the same time,the magnetic declination and geomagentic inclination in China are calculated, and their variation rules with the variation of latitude, longitude and height are analyzed.
Key words ：
magnetic declination
geomagentic inclination
true azimuth
geodetic coordinate
spherical harmonic function
Received: 01 January 1900
Corresponding Authors:
Wang Jiexian
Cite this article:
Wang Jiexian,and Li Haojun . CALCULATION AND FORMULA DEDUCTION OF MAGNETIC DECLINATION AND GEOMAGNETIC INCLINATION[J]. , 2009, 29(3): 88-90.
Wang Jiexian,and Li Haojun . CALCULATION AND FORMULA DEDUCTION OF MAGNETIC DECLINATION AND GEOMAGNETIC INCLINATION[J]. jgg, 2009, 29(3): 88-90.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I3/88
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