甘肃省碌曲气象站迁站前后气象资料对比分析

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Abstract Based on the accumulated historical observation data of the new and old sites of Luqu meteorological station in Gansu and the parallel comparative observation data in 2014,the difference of meteorological elements before and after relocation of the station is studied by comparative analysis and two T-test methods.The results show that the relocation site has the greatest impact on the wind,the wind direction coincidence rate is low,the wind speed magnitude difference is large,and the new site has frequent gale weather phenomena.The second is the impact on summer precipitation,with the maximum negative difference in July and the maximum positive difference in August.The difference of temperature in spring and autumn is the largest,and the difference in daytime is greater than that in nighttime.The relative humidity is basically flat before and after station relocation.The two T-tests show that the difference of 2-min mean wind speed is extremely significant,while precipitation and relative humidity has no significant difference.The paired sample T-test shows that there is significant difference in temperature in all months,and independent sample T-test only shows significant difference in May and June.

Key words： Luqu meteorological station relocation comparative observation T-test

Received: 08 April 2021

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	Wang Yaping
	Han Haitao
	Jin Hongmei

Cite this article:

Wang Yaping,Han Haitao,Jin Hongmei. Comparative analysis of meteorological data before and after relocation of Luqu meteorological station in Gansu[J]. Meteorological Hydrological and Marine Instrument, 2022, 39(1): 1-4.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2022/V39/I1/1

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