摘要
利用上海地区11个气象站雷暴资料,从时间和空间2方面分析了上海雷暴的气候特征和变化规律。结果表明,1960～2008年期间,上海年平均雷暴日数总体上减少,其中秋季雷暴日数减少最为显著。在近30 a,雷暴日数更多地从9月向8月转移。空间上,全年雷暴日数在上海的西北、西南和东南方向减少较多,春季雷暴日数在西部和南部减少较多,夏季雷暴日数在西北部减少最多,秋季雷暴日数在南部减少最多。在本世纪初,上海徐家汇雷暴初日提早,终日没有明显变化,雷暴的初日、终日之间的日数总体上表现为增加。
Based on the thunderstorm data of 11 meteorological stations in Shanghai, the temporal and spatial climatic characteristics of thunderstorm in recent 50 years were analyzed. The results indicated that the annual total thunderstorm days presented decreasing trend from 1960 to 2008, and especially obvious in autumn. In recent 30 years, thunderstorm days in August were more than that of Septenber. In the whole year, the decrease of thunderstorm days was more in the northwestern, southwestern and southeastern part of Shanghai, and in spring, summer and autumn, the decrease of thunderstorm days was more in the western and southern part, the northwestern part, and the southern part of Shanghai, respectively. In the first 8 years of 21 st century, the first day of thunderstorm was earlier but the last day changed insignificantly at Xujiahui station.
出处
《干旱气象》
2010年第1期54-58,64,共6页
Journal of Arid Meteorology
基金
国家"十一五"科技支撑计划重点项目(2007BAC29B05)
国家自然科学基金(40901031)
上海市自然科学基金(09ZR1428800)
上海市气象局研究型业务专项(YJ200805
YJ200803)
国家863计划项目(2006AA12Z104)共同资助
关键词
雷暴
气候特征
时空变化
上海
thunderstorm
climatic characteristics
spatial and temporal change
Shanghai
作者简介
靳利梅（1964-），女，陕西西安人，工程师，主要从事气候监测和应用气象服务．E—mail：jinlm@climate．sh．cn
