气象研究与应用2011,Vol.32Issue(4):6-12,I0001,8.
玉林夏季高温天气气候特征与环流形势分析
Analysis on Climatic Characteristics and Weather Patterns of Summer High Temperature Weather in Yulin City
刘金裕 1林确略 1陆丽安 2孙素琴3
作者信息
- 1. 玉林市气象局,广西玉林537000
- 2. 南宁市气象局,广西南宁530022
- 3. 江西省气象局,江西南昌310000
- 折叠
摘要
Abstract
Based on the observation data of surface temperature, wind, relative humidity and solar radiation of Yulin station in recent 50 years (1961-2010) , the historical weather maps and NCEP/ NCAR reanalysis data, the climatic characteristics of high temperature summer weather were statistically analyzed and its general circulation features are discussed. The results showes that 1) the hot days usually occurred in June to September and the cases, which last at least 3 hot days, mainly happened in July to August. The days of hot varied greatly between years. There are small daily mean wind speed, high daily mean relative humidity and temperature, as well as greater monthly mean sunlight hours during hot weather process. 2) There are three types of large-scale circulation, which would cause the hot weather: the subtropical high controlling type, tropical cyclone periphery type and the subtropical high coinciding with tropical cyclone type. The lasting time of high temperature weather was closely related to the intensity of subtropical high. While the subtropical high was strong, expanded more wests and covered the South China, there were usually appearing the hot weather; when the downward flow of tropical cyclone affected Yulin, the extreme heat days often happened; when the subtropical high affected Yulin associated with the tropical cyclone, the heat days persist and the temperature would be higher.关键词
玉林/夏季高温/气候特征/平均风速/相对湿度/副高/环流形势Key words
Yulin/summer high temperature/climatic characteristics/average wind speed/relative humidity/subtropical high/weather patterns分类
天文与地球科学引用本文复制引用
刘金裕,林确略,陆丽安,孙素琴..玉林夏季高温天气气候特征与环流形势分析[J].气象研究与应用,2011,32(4):6-12,I0001,8.