The Track of Typhoon 9711 and the Concomitant Raingush effected Shandong Province
The Track of Typhoon 9711 and the concomitant raingush in Shandong region were analysed. The results showed that circulaton around the subtropical anticyclone acted as an apparent guidance during the typhoon moving period. The moving track of the typhoon and the rainfall area had strong correlaion with the axes of the positive vortex and of high energy. The distribution of the variable exnergy field in the mid troposphere had an apparent guidance to the typhoon track.