Analysis of Characteristics of Snow Accumulation and Its Meteorological Influencing Factors during a Snowstorm Process in Ulanqab City  

作　　者：Nan ZHAO Xinyu CHEN 

机构地区：[1]Ulanqab Meteorological Bureau,Ulanqab 012000,China

出　　处：《Meteorological and Environmental Research》2024年第2期10-13,21,共5页气象与环境研究（英文版）

摘　　要：Based on the data of national observation stations of CMISS system,artificial encrypted observation data of snow depth,ERA5 reanalysis data,the snowfall process in Ulanqab City from March 17 to 19,2022 was analyzed.It is found that the influencing system of the snowfall process was upper-air trough combined with ground inverted trough.Snowfall was not proportional to snow depth,and the relationship between the maximum snow depth and total snowfall varied in different value intervals.A large intensity of snowfall was a necessary condition for the formation of abundant accumulated snow when ground temperature was higher than 0℃.After the formation of accumulated snow,ground temperature changed less,and it was easy to produce accumulated snow as ground temperature was lower.The lower the temperature,the more conducive to the generation of accumulated snow.

关 键 词：SNOWSTORM Accumulated snow Snow-to-liquid ratio Influencing factors 

分 类 号：P425.55[天文地球—大气科学及气象学]