Francisco da Silva Costa

As cheias do rio Tâmega. : O caso da área urbana de Amarante

EnglishFloods of Tâmega river (northern Portugal) are introduced in comparison with the regional climate characteristics and defined by some hydrometric variables. Flooding areas in the town of Amarante are shown too. portuguesAs cheias do Rio Tâmega (Norte de Portugal) sao relacionadas com as caracteristicas climaticas regionais e definidas atraves de algumas variaveis hidrometricas. Mostram-se, tambem, as areas de inundacao na cidade de Amarante.

As inundações do rio Douro em 1909: um contributo para o seu estudo a partir dos arquivos históricos da agência portuguesa do ambiente

Between 17 and 25 December 1909, the population of the city of Porto and Gaia watched helplessly the destruction of their riverside areas, by the flood of the Douro River. The flood caused immense losses on both banks of the Douro, forcing the intervention of various state agencies for their subsequent rehabilitation. From a set of documents of the authorship of the 1a Direcao dos Servicos Fluviais e Maritimos was possible to identify the interventions that were planned, as well as the progress of work, and, from there, also identify the areas affected by this catastrophic event and the real extent of their effects on riverside areas of Porto and Gaia.

A IMPORTÂNCIA DAS FONTES HISTÓRICAS PARA O CONHECIMENTO DOS CURSOS DE ÁGUA: O CASO DO RIO AVE (NOROESTE DE PORTUGAL)

The Portuguese Environment Agency holds an important archive resulting from the century-old activity of the Water Services in charge of water management and water resources planning, which should be studied and made public. The documental and technical collections of the former Douro Water Services (SHD) represent an opportunity to understand a public institution, where water and its use profoundly mark social relationships and economic activities. The archive tell of case studies on the uses of public water for different purposes and the modalities of its use. Thus, several areas of scientific interest are taken into account in the analysis of these processes, as well as the problems, impacts and limitations of human activities on the management of the Public Waterways Domain. This article presents case studies of particular interest in historical terms related to the Ave River basin, located on the coastal region of northwest Portugal and the evolution of its watercourses’ morphometric features.

As inundações de 1967 na região de Lisboa: uma catástrofe com diferentes leituras

On the nights of 25 and 26 November 1967, heavy rains swept over the area of Lisbon (Lisboa, Loures, Odivelas, Vila Franca de Xira and Alenquer), with flooding causing a high number of deaths, thousands of homeless and countless homes destroyed. Despite the impacts originated the episode remains poorly evoked. The theoretical and academic approaches to the subject have focused more on the weather phenomenon and the effects produced in the territory and less on the social consequences and the observation of the impacts of a political nature. Based on consultation and analysis of hundreds of documentary sources, we have tried to document some social and political events that marked the post-flood crisis in 1967 in the Lisbon region.