| dc.description.abstract | Taiwan, being located at the subtropical zone in western Pacific Ocean, suffers the damage to typhoon events frequently. The weather in Taiwan is the typical island climate, with its characteristics such as high intensity precipitation and disproportionate distribution. For this reason, serious disasters in Taiwan are often occurred during typhoon events. This study focuses not only to identify the precipitation patterns in typhoon events, but also provide insights for engineering design.
The precipitation record of typhoon events from 1971 to 1991, based on the Central Weather Bureau, is used for analysis. To study the regional characteristics, the island is divided into four geographical areas, namely, the northern, the central, the southern, and the eastern part of Taiwan. The precipitation data of each of the typhoon events is analyzed by taking its duration, rainfall pattern, typhoon path, total precipitation and precipitation intensity. Furthermore, comparisons are performed among the four areas. It is found that the mean duration of the event is about 24 hours with roughly a standard variation of 12 hours. The central concentrated pattern is identified as the most common one. Therefore, a design approach using the central concentrated precipitation pattern with duration of 24 hours is suggested in engineering practices. Furthermore, the different path causes dissimilar influence in four areas. From the data, it can be shown that the heavy rainfall region is in the eastern part of Taiwa | en_US |