2005—2019年自动站与人工站降水量观测资料对比分析

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Abstract In order to investigate the differences in historical precipitation data sequences between automatic and manual stations,and to test the accuracy of the two data and the reasons for excessive or insufficient precipitation.The article uses daily,monthly,and annual automatic and manual observation precipitation data from Changchun National Reference Climate Station from January 1,2005 to December 31,2019,and analyzes the differences in the percentage of systematic errors between daily and monthly precipitation.The results show that the proportion of automatic and manual stations with a daily precipitation of ≤ 10.0 mm in the summer and winter half of the year that meets the standard is 90％ to 93％,indicating that the accuracy of the tipping bucket rainfall sensor is high during light rain.The measurement data of the double tipping bucket rain sensor is closer to the true value than that of the single tipping bucket rain sensor.The measurement date of the weighing type precipitation sensor has a large error in freezing rain and sleet weather.By comparing the data from automatic and manual stations,the reasons for the differences between the two and the degree of closeness to the true values were verified,which can provide a basis for data research.

Key words： precipitation data automatic station artificial station comparative analysis

Received: 15 November 2023

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	Articles by authors
	Zhang Junru
	Fu Yanyan
	Zhang Wenzhe
	An Hongshan
	Yuan Jinhua

Cite this article:

Zhang Junru,Fu Yanyan,Zhang Wenzhe等. Comparative analysis of precipitation observation data between automatic and artificial stations from 2005 to 2019[J]. Meteorological Hydrological and Marine Instrument, 2024, 41(6): 16-19.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2024/V41/I6/16

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