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《Surveying and Mapping of Geology and Mineral Resources》 2004-01
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Probe into Atmosphere Vertical Refraction Problem for Precision River-Crossing Leveling

ZHOU Xi-zhen, ZHANG Duo-Qiang(Sept. of Surveying and Mapping Engineering of Hehai University, Nanjing Jiangsu 210098, China)  
This paper aims at atmosphere vertical refraction coefficient calculation problem in river-crossing leveling to carry through the discussion and precision analysis. The test is based on a large number of vertical angle observation data for one grade river-crossing leveling. Via the calculation of the coefficient, the river-crossing leveling precision influenced by atmosphere vertical refraction is carried through brief discussion, and some useful conclusions are acquired.
【CateGory Index】: P421
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【References】
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【Co-references】
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【Secondary References】
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