拉萨市东部一次强降雪天气诊断分析

Abstract
Figure/Table
References
Related Citation (5)

Download: HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to analyze the characteristics of heavy snowfall weather in Lhasa,a diagnostic analysis was conducted on the heavy snowfall weather in the eastern part of Lhasa from March 20,2021 to 22,using European Center reanalysis data,MICAPS routine observation data,ground satellite data,and other data.The results indicate that the split shortwave trough in the westerly trough provides a strong triggering mechanism for precipitation weather in Lhasa city.The strong divergent suction effect at 200 hPa altitude is significant.The southern to central regions of the plateau are located on the right rear side of the jet stream inflow zone,which is conducive to the uplift of large-scale systems.The invasion of strong cold air is conducive to forcing uplift and coordinating with the eastward movement of mesoscale systems.In addition,the strong convergence center in the central to eastern part of the plateau is conducive to maintaining atmospheric upward movement,and the upward movement zone extends vertically to around 250 hPa.Strong upward movement is very beneficial for blizzard weather.The research results provide reference for the forecasting of heavy snowfall weather in Lhasa city.

Key words： jet stream water vapor conditions westerly trough upward motion

Received: 26 March 2025

ZTFLH:

P458.1

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Luosang Zhuoga
	Ci Zhen
	Bianba Jiangcun
	Suolang Ciren

Cite this article:

Luosang Zhuoga,Ci Zhen,Bianba Jiangcun等. Weather diagnosis and analysis of a heavy snowfall in the eastern Lhasa City[J]. Meteorological Hydrological and Marine Instrument, 2025, 42(4): 96-98.

URL:

http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2025/V42/I4/96

[1]	章雯,吴芳,周红根.泰州市夏季高温特征及2022年异常高温成因分析 [J].气象水文海洋仪器,2024,41(6):51-54.
[2]	郑卡妮.2023年乐平港边极端短时强降水事件分析 [J].气象水文海洋仪器,2024,41(3):76-79,83.
[3]	石涛,廖超伦,谭睿,等.南城县气候变化与极端天气研究 [J].气象水文海洋仪器,2021,38(1):45-47.
[4]	邹进上,曹彩珠.影响青藏高原降雪的若干因子研究[J].水科学进展,1991(1):42-49.
[5]	于媛慧,杨士恒,张安然,等.基于多源数据融合的青藏高原降雪变化特征研究 [J].中国农村水利水电,2025(1):117-123.
[6]	张帅,崔景林,徐爽,等.2017年2月2122日沈阳地区暴雪过程分析 [J].安徽农学通报,2018,24(增刊1):95-97.
[7]	杨苑,钱倩霞,白春燕.中卫降雪天气过程成因诊断分析:以2017年2月20日降雪天气过程为例[J].农业与技术,2020,40(13):92-97.
[8]	于晓东.长白山机场2012年2月22日强降雪天气过程分析[J].商,2015(33):238,168.