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| Analysis of heavy to blizzard weather characteristics in the Changbai Mountain area from 2010 to 2020 |
| Li Yue1,2, Li Nan3, Wang Hua4, Fan Yuxin5, Ma Jihui6, Cui Jialong1, Qiu Yingqiang7 |
1. Jilin Institute of Meteorological Sciences,Changchun 130062;
2. Changbai Mountain Meteorological and Climate Change Key Laboratory of Jinlin Province,Changchun 130062;
3. Changbai Mountain Meteorological Bureau,Antu 133613;
4. Jilin Meteorological Service Center,Changchun 130062;
5. Jilin Provincial Meteorological Service Center,Changchun 130062;
6. Tonghua Meteorological Bureau,Tonghua 134100;
7. Tumen Meteorological Bureau,Yanbian 133100 |
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Abstract The article uses daily precipitation and temperature data from the northern and western districts of Changbaishan for the winter months of November to March from 2010 to 2020,as well as Micaps real-time data,a statistical analysis was conducted on the spatiotemporal distribution patterns of 25 precipitation events classified as heavy to blizzard-level and above.The study explored weather characteristics such as the configuration of high and low-altitude systems,water vapor sources,frontal intensity,and precipitation phase.The results indicate that,in terms of temporal distribution,the highest number of heavy to blizzard-level precipitation days occurs in late autumn and early spring (November and March),followed by December and February,with no such events in January.In terms of spatial distribution,the western district experiences more days and higher average snowfall compared to the northern district.Precipitation intensity is closely related to the influencing system,water vapor source,and frontal intensity.During the transition season between rain and snow,the intensity of cold and warm advection,as well as the start time of precipitation,can be used as key indicators to determine the precipitation phase.
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Received: 19 March 2025
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2025, Vol. 42 
