Climatic Characteristics and Synoptic Situations of Regional Haze in Liaoning Province

[摘要] Based on the climatic statistical characteristics of haze data from 1961 to 2013 in Liaoning province, the results show that the number of days of haze weather in Liaoning province shows a rising trend year by year. The number of days increases obviously after the 1980s. It shows a steady trend of growth in the1990s. The growth trend in the early years of this century is obvious again, especially in the nearly 5 years. The changes of haze days coincide with the actual situation of industrial economy, rapid urban development and high energy consumption in Liaoning province in the last 30 years. There is the high incidence area of haze in the central cities in Liaoning. Winter (December to February) is the high incidence season of haze in a year, and haze days account for 30%-40%. During a day, haze weather mainly occurs between 2 a.m. to 8 a.m. accounting for 44.5%, 2 p.m. to 8 p.m. account for 25.9%, however other times less. Through comprehensive analysis of synoptic situations and meteorological factors of haze, five kinds of weather forecasting models for haze weather in Liaoning province are established, which provides basis for the forecast of haze weather.

[发布机构] Liaoning Province Meteorological Observatory, Shenyang; 110166, China^1;Institute of Shenyang Atmospheric Environment CMA, Shenyang; 110166, China^2

[效力级别] 经济学

[关键词] Comprehensive analysis;High energy consumption;High incidence;Liaoning Province;Meteorological factors;Rapid urban development;Statistical characteristics;Weather forecasting model