2021-12-26江西雨雪天气回波特征分析

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Abstract In order to better carry out the fine monitoring and early warning of rain and snow weather at the city and county levels,the rain and snow weather in Jiangxi on December 26,2021 was analyzed by using the data of automatic weather station,MICAPS weather map and Jiangxi WebGIS radar puzzle.The results show that Jiangxi is in the west air flow in front of the 500 hPa trough,and there is an outflow area at 100 hPa,a northeast air flow at 850 hPa and in the weak wind area on the ground.The stratification in Nanchang tends to be stable.Under the weak warm advection environment,it is conducive to the formation of rain and snow weather.The echo of rain is in flocculent structure,and the CR intensity is 20～35 dBZ.The echo of snow is in flake structure,and the CR intensity is 10～25 dBZ.The echo top ET of snow is less than 6 km,and the echo top ET of rain is up to 9 km.The vertical integral liquid water content VIL of snow can hardly be observed,and the VIL of rain is less than 10 kg/m².The vertical height of rain and snow echo is low,and the top height of 20 dBZ echo is less than 5 km.These research results have been guiding significance for rain and snow weather monitoring,early warning and forecasting services at the city and county levels.

Key words： rain and snow weather monitoring and early warning echo system rain and snow characteristics

Received: 11 January 2022

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	Articles by authors
	Xie Wei
	Ma Zhongyuan
	Xiao Yun
	Ma Shangqin
	Li Huanhuan
	Li Xujie

Cite this article:

Xie Wei,Ma Zhongyuan,Xiao Yun等. Analysis of echo characteristics of rainy and snowy weather in Jiangxi on December 26,2021[J]. Meteorological Hydrological and Marine Instrument, 2022, 39(2): 31-34.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2022/V39/I2/31

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