Portal de Periódicos da CAPES

Impact of the rains on the city of Fortaleza in the years 2013, 2014 and 2015

2017; Coimbra University Press; Issue: 25 Linguagem: Inglês

10.14195/1647-7723_25_3

1647-7723

P. Poseiro, C. J. E. M. Fortes, M. T. Reis, R. Reis,

Geography and Environmental Studies

The HIDRALERTA is a forecast, warning and risk assessment system for overtopping/flooding of coastal and port areas which uses sea-wave measurements/estimates of sea-waves to evaluate overtopping/flooding in those areas. The calculation of the mean overtopping discharge over a maritime structure is made through neural network based tools and/or empirical formulas, which are unable to define the spatial distribution of the flow behind the structure. This paper presents the application to the harbour/bay of Praia da Vitória, Azores, of a fast method that uses a GIS tool to model such spatial distribution. A relationship was established between inundation level and wave overtopping volume, using a digital terrain model. This work represents a first step for developing a risk map associated to wave overtopping.