大理国家气候观象台不同观测系统的观测数据差异性分析

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Abstract Using the data of Dali planetary boundary layer observing system(PBL) from 2007 to 2008,two sets ground-based reference climate observing systems and automatic weather station observation,the observed meteorological elements were performed a statistic and evaluated. According to analyze consistency,difference,gross error rate,wind direction accordant rate,data gap of those data such as ground temperature,radiation,air temperature,barometric pressure,relative humidity,wind speed and direction,the possible causes of date differences in sets of observing systems are discussed. The results show that the data changing from several sets of observing systems are in a consistency and the differences among ground temperature,air temperature and relative humidity are small. The accuracy can meet the daily business. Wind speed and wind direction remains to be further validated and calibrated. The original observation data can still be used. Radiation and pressure date are in a great difference,so it needs to discuss and revise. There are several of reasons that caused the data differences such as different surface exploration environments,principles of observation instruments,sensor sensitivity,collection ways,non-standard observational instruments installation,unstable observation system,high failure rate and missing data.

Key words： meteorological observation system observation data differences comparative and analysis

Received: 09 April 2016

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	Articles by authors
	Yang Yanjun
	Fu Zhijia
	Wang Xiaobin
	Zhao Xiaohong

Cite this article:

Yang Yanjun,Fu Zhijia,Wang Xiaobin等. Difference analysis on meteorological observation data from different observation systems in Dali National Climate Observatory[J]. Meteorological Hydrological and Marine Instrument, 2016, 33(3): 13-20.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2016/V33/I3/13

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