陕西暖季雷暴的主模态及其可能的影响机制
张宏芳1, 潘留杰2, 侯建忠2, 李明娟2

The Major Mode of the Shaanxi Thunderstorm and Possible Influence Mechanism
Zhang Hongfang1, Pan Liujie2, Hou Jianzhong2, Li Mingjuan2
图1 1960—2010年陕西雷暴的年际、季节变化 a雷暴的年际变化, 折线：76个台站平均, 粗曲线：11年滑动平均；b雷暴的月际变化, 折线：76个台站平均。图中阴影表示76个台站雷暴变化的离散度
Fig.1 Interannual and seasonal variation of Shaanxi thunderstorm over Shaanxi province for the period 1960 to 2010 a The interannual variation of thunderstorm, the thin and thick curve indicate mean and 11-years running mean of 76 stations；b The seasonal variation of thunderstorm, the thin curve denotes the average thunderstorms of 76 stations. The shaded areas indicate the discrete degree of thunderstorm variation at 76 stations