Impacts of the anthropogenic use of floodplains on the flood runoff
Using the River Inn as an example
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Worldwide, floodplains of rivers are under strong pressure due to ongoing development of settlement, commercial, industrial and traffic areas. In the context of integrated flood risk management this trend implicates various adverse consequences, since firstly natural flood storage volume is reduced (thus leading to accelerated and increased flood peaks further downstream) and secondly since flood risk is magnified in these newly developed areas due to the accumulation of high-valuable goods. Therefore, in this work, the change of land use along the Tyrolean Inn was examined. The last 60 years,...
Worldwide, floodplains of rivers are under strong pressure due to ongoing development of settlement, commercial, industrial and traffic areas. In the context of integrated flood risk management this trend implicates various adverse consequences, since firstly natural flood storage volume is reduced (thus leading to accelerated and increased flood peaks further downstream) and secondly since flood risk is magnified in these newly developed areas due to the accumulation of high-valuable goods. Therefore, in this work, the change of land use along the Tyrolean Inn was examined. The last 60 years, from 1950 to 2010 were investigated quantitatively with the help of ortho pictures, aerial photographs and the area zoning plan. For investigating historical changes, a qualitative analysis of morphological changes and settlement development was performed. Therefore, the three Landesaufnahmen from 1800, 1820 and 1880 were used. The aim was to detect if there is a change in flood discharge behavior due to the change of land use.
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