摘要
总结了近50 a来新疆北部强降雪的主要研究成果,从大尺度环流背景、天气尺度和中尺度系统、水汽特征及地形对强降雪增幅作用等进行了分类概述。提出了待解决的问题:造成新疆北部强降雪的各种尺度系统和短期环流异常、变化规律及其相互作用;不同区域强降雪及暖区和冷锋暴雪的区别及地形对各区域暴雪作用;不同区域强降雪的水汽源汇结构、远距离接力输送和集中机制及高、中、低纬度水汽输送和循环异常状况;中尺度系统的特征及其发生、发展的物理机制。这些问题的研究对推进新疆暴雪短期和短时预报的发展,提高预报准确率,增强防灾减灾能力具有重要意义。
The main research results of the strong snowfall in northern Xinjiang in the past 50 years were summarized, including Large-scale circulation background, synoptic scale and mesoscale systems, water vapor characteristics and topography, and effects of all above on strong snowfall increase were sorted. Problems to be solved are pointed out as follows： various scale systems and circulations short term anomaly, variation and its interaction; the distinguished zones of different snow-storms, warm sector and cold front blizzard, and terrain effects on different regional snowstorms; the water vapor source structure, long distance relay and centralized mechanism with abnormal situation of water vapor transport and circulation in high, medium and low latitudes for strong snowfalls in different regions; physical mechanism of mesoscale system and its development.To solve the above-mentioned problems, it is very important for improving the weather forecast accuracy of snow-storms and enhancing the capabilities of disaster prevention and reduction.
出处
《沙漠与绿洲气象》
2016年第1期1-8,共8页
Desert and Oasis Meteorology
基金
科技部公益性行业(气象)科研专项"新疆北部致灾暴雪成因分析和预报技术研究"(GYHY201106007)
关键词
新疆北部
强降雪
中尺度系统
水汽
northern Xinjiang
snow-storm
mesoscale system
water vapor
