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| Analysis of influence factors and calculation of error propagation of single-theodolite wind measurement |
| Huang Hua1, Guo Gao2, Yang Xiaojun2 |
1.Beijing Institute of Applied Meteorology,Beijing 100029;
2.Xi'an Institute of Optics and Precision Mechanics of CAS,Xi'an 710119 |
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Abstract In order to reduce the error and meet the needs of the engineering application,this paper analyzes the influence factors of the single-theodolite method in pibal observation.The calculation formulas of the upper wind vector and mathematical models of the error propagation are established.Taking the American 30g balloon as the typical research object,based on GJB 6556.3-2008 and GJB 6076-2007,according to USA federal meteorological handbook Rawinsonde and Pibal Observation,the system and random error of wind measurement are classified and calculated.Reducing the error of balloon tracking can effectively reduce the random error of wind measurement,which deserves our more attention.
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Received: 09 April 2018
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2018, Vol. 35 
