VERTICAL FREE-AIR CORRECTION IN MARINE MAGNETIC SURVEY
Yu Bo 1) ;Zhai Guojun 2) ; Liu Yanchun 1) ; Bian Gang 1) ; and Bian Guanglang 1)
1)Dept. of hydrography and Mapping, Dalian Naval Academy, Dalian 1160182)Institute of Hydrographic Surveying and Charting , Tianjin 300061
Abstract The new concept of spatial correction of sensor has been brought out.The spherical magnetic field is simulated on the undulating observation surface, vertical freeair correction is computed from harmonic series. The mean square error of crossingpoint discrepancy is also computed. It is concluded that the mean square error of crossingpoint is improved about 10 nT after the vertical freeair correction.
Key words ：
marine magnetic survey
vertical free-air correction
crossingpoint discrepancy
mean square error
surveying accuracy
Received: 01 January 1900
Corresponding Authors:
Yu Bo
Cite this article:
Yu Bo ,Zhai Guojun ,Liu Yanchun et al. VERTICAL FREE-AIR CORRECTION IN MARINE MAGNETIC SURVEY[J]. , 2008, 28(1): 123-126.
Yu Bo ,Zhai Guojun ,Liu Yanchun et al. VERTICAL FREE-AIR CORRECTION IN MARINE MAGNETIC SURVEY[J]. jgg, 2008, 28(1): 123-126.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I1/123
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