宁夏人工观测与自动观测能见度的对比评估

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Abstract The visibility data of 3 weather stations from January 2014 to March 2015 were used to evaluate the visibility by automatic and manual observations in parallel. The results show that the average relative error between manual and automatic visibility values is 18.1%,and the 69.2%of automatic observation is smaller. The differences on increasing order is 14:00,17:00,11:00,20:00 and 08:00,with obvious seasonal changes,which are larger in winter and the minimum in summer. The visibility at different time observed by automatic way would be close to that by manual way with the enhancement of visibility values. The visibility value observed by Huayun visibility sensor is close to the manual way,but their difference values are more discrete than that by Anhui. For visibility in different order of magnitude,the difference values of Huayun is smaller. The visibility difference between Huayun and Anhui sensor gradually become smaller with the decrease in visibility.

Key words： manual observation automatic observation visibility comparative evaluation

Received: 13 November 2015

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	Articles by authors
	Xue Zhengzheng
	Zhang Lei
	Zuo Xiangwen
	Huang Yuxue
	Shen Yuande
	Sun Jianan

Cite this article:

Xue Zhengzheng,Zhang Lei,Zuo Xiangwen等. Comparative evaluation on manual and automatic observation of visibility in Ningxia[J]. Meteorological Hydrological and Marine Instrument, 2016, 33(3): 100-104.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2016/V33/I3/100

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