Assessment of the Hydraulic Performance of the Urban Drainage System due to Climate Change using DHI MIKE URBAN

Abstract

Changes in climate, waterlogging hazards and regional floods are more prominent in present context. The paper reviews potential of flood hazard in dense urban areas, using GIS-based 1-D hydrodynamic model (MIKE URBAN). The major factor contributing to the urban waterlogging in recent decades is the climatic variability and thus the long-term variations of precipitation and drainage system of an urban area were evaluated. MIKE URBAN (1-D) hydrodynamic model can be used to comprehensively simulate inundation processes. The model simulates the processes of rainfall and runoff, urban drainage, and flooding. MIKE URBAN can be used to appraise the potential immersion dangers of any planned drainage system. This paper reviews the increasingly urban flooding events expected in the future for the different cities across the globe. Thus, the surface runoff processes of cities need to examine the regional drainage system.

Ethiopian urban land allocation policy and its contribution to urban densification

“…Such a fast spatial expansion rate that results in low-density urban development is recognized as a negative sign of sustainable development because of its complex and unwelcome consequences [ 2 ]. Many individual case studies have verified that high rates of urban expansion over the last few decades have resulted in various unfavorable consequences [ [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] ]. Similarly, Ethiopia has also been bearing the burden of urban sprawl and its consequences for the last three decades [ [14] , [15] , [16] ].…”