文章基本信息

标题：Flood hazard, Santa Cruz do Bispo Sector, Leça River, Portugal: a methodological contribution to improve land use planning
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作者：Pedro Gonçalves ; Inês Marafuz ; Alberto Gomes 等
期刊名称：Journal of Maps
印刷版ISSN：1744-5647
出版年度：2015
卷号：11
期号：5
页码：760-771
DOI：10.1080/17445647.2014.974226
出版社：Journal of Maps
摘要：This paper presents a 1:4000 scale flood hazard map, covering 4,2 km 2 of a sector belonging to the Leça river watershed (Portugal), named the Santa Cruz do Bispo sector. The map is the outcome of the combination of several hydrodynamic parameters – velocity, water column height and flood-prone – defined for three return periods (T10, T50, T100), which were calculated. An intensity-probability matrix supports the hazard map which combines the modelling results as a base layer to classify flood hazard along the alluvial plain and to identify exposed elements located inside the T100 prone-flood area, notably roads, bridges and buildings. The hazard map is an important document to support land planning, assisting the definition of correct land use and occupation restrictions that should be applied along this floodplain.
关键词：flood hazard map; intensity-probability matrix; Hec-Ras software; Hec-GeoRas; flood-prone areas; exposed elements