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- Title
中天山北坡冬季降雪变化及其影响因子分析.
- Authors
苗运玲; 于永波; 霍达; 潘存良; 李如琦
- Abstract
Based on the observation data of daily precipitation and temperature elements in winter from 1978 to 2020 from 17 national meteorological stations, the spatial-temporal variation characteristics of winter snowfall and its relationship with meteorological factors in the economic belt on the north slope of the middle Tianshan Mountains were analyzed by using various statistical methods. The results show that: The regional distribution of snowfall days and snowfall amount is similar, showing the distribution characteristics of ‘more urban areas, less mountainous areas’. The decrease of light snow days is the direct reason for the decrease of total snow days, while the significant increase of moderate snow and blizzard is the main reason for the increase of total snowfall. The precipitation process lasting for 1 day is the main snowfall process in winter. With the increase of the duration, the precipitation process decreases significantly, and the precipitation process ≥ 5 days only accounts for 2.8%; In the past 43 years, the climate on the north slope of Tianshan Mountains has shown an obvious warming and humidifying trend. In 1987 and 1994, the amount of snowfall changed from less to more and the average temperature changed from lower to higher; The amount of snowfall is significantly and positively correlated with the annual precipitation, the average minimum temperature in winter, and the number of snowfall days. The greater the annual precipitation, the lower the minimum temperature in winter, and the more snowfall days, the greater the amount of snowfall in winter, and vice versa.
- Subjects
METEOROLOGICAL stations; CITIES &; towns; LOW temperatures; ECONOMIC impact; WINTER; BLIZZARDS
- Publication
Arid Zone Research / Ganhanqu Yanjiu, 2023, Vol 40, Issue 1, p9
- ISSN
1001-4675
- Publication type
Article
- DOI
10.13866/j.azr.2023.01.02