【摘要】 用安徽省黄山气象站地面观测气象资料、美国NCEP全球分析FNL资料,对2013年8月17日黄山莲花峰雷电灾害进行气象分析.主要结果如下:我国东北伸到长江下游为冷槽,测站受其影响;低层东伸的湿舌为测站提供了丰富的水汽.T-lnp图上对流有效位能为397J/kg,对大气对流具有重要作用.低空假相当位温随高度减小,表明存在潜在的对流性不稳定条件;受日射作用,测站中午前后低层空气被下垫面加热,使气层变得不稳定,均有利于对流天气的出现.黄山地形对气流的抬升作用,触发或加强对流天气产生.更多还原

【Abstract】 Based on the meteorological data in Huangshan of Anhui province,and NCEP FNL global analysis data,we did meteorological analysis on lightning disaster of Huangshan lotus peak on August 17,2013.Our results showed that it was the cold trough stretching to the lower reaches of the Yangtze River in Northeast China,and affected Huangshan.Wet tongue extended eastward in low layer,and provided abundant water vapor to Huangshan.Convective available potential energy was 397 J /kg in T-lnp diagram,and it played an important role in atmospheric convection.Low altitude potential pseudo-equivalent temperature decreaseed with height,which indicated the presence of potentially unstable convection conditions.Lower layer air of Mount Huangshan around noon was heated by underlying surface under solar radiation,and it made the atmosphere unstable.Both of them were favorable to the appearance of convection weather.The produce of convective weather was triggered or enhanced by Mount Huangshan terrain uplifting.更多还原