| 英文摘要
| Taiwanu0027s special geographical location and topography results caused to many typhoon flooding problems, with the high density of population and highly development of economics, and frequent weather disasters caused huge financial losses for the public to afford. To reduce the financial burden caused by the floods, flood insurance can be considered in high-risk areas.
Among all countries implemented flood insurance, United States, Japan are relatively well developed. existing typhoon flood insurance in Taiwan is an additional insurance of the residential fire insurance, which is not a sound flood insurance, so that flood areas and flood losses need to be discussed. Figures of flood potentials is made without carefully thinking about rainfall duration, as the figures provide the flooding depth of 24h and 48h ,but lack of the information of which rainfall duration causes the maximum flooding volume. On the other hand, the figures provide the areas of the city, as there are no data to quantify flood damages, flood insurance is difficult to implement.
To assess the flood situation more accurately, first this study produced a Rainfall duration– Intensity-Flood volume chart with three kinds of outflow calendar line, including the triangle calendar line, SCS calendar line, and the PRF calendar line. Then based on the flood potential maps (24h,48h) of the New Taipei City provided by NCDR, using Arcgis software and the relationship of flood damages and flood depth, calculate the amount of flood damages and losses of each neighborhood area, taking Sanchong District as an example. According to this practice, this study expects to suggest a framework to construct flood map, on the purpose of utilizing them for issuance application. |
