民國六十八年戈登颱風及賀璞颱風之探討

張儀峰　謝維權

ABSTRACT

　　Two typhoons (Gordon and Hope) are discussed in this  report, since,
(1) they developed into typhoons almost in the same time；
(2)their tracks were very similar and they landed in the same area；
(3) they were the only two typhoons which influenced Taiwan area in 1979.
　　The tracks of Typhoon Gordon and Hope were affected by the high level cold core low which occured in the middle Pacific and were very significant on the 300mb charts. The low, with a accompanied trough, moved westward as the Pacific high ridge extended to the west. This formed a westward steering flow for the two typhoons. We used mean charts of each layer during the considered period to prove such phenomenon.