Conference Agenda
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Daily Overview |
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SES 1-4-1: Modelling of Blue-Green Infrastructure / NBS / SUDS / LID 3 Location: HSB0 Session Chair: Tone Muthanna Session Chair: Simon De-Ville | |
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5:30pm - 5:45pm
Model-based investigation of Blue-Green Infrastructure – Case Study in a Pilot Model Area in Astana, Kazakhstan. itwh GmbH, Hanover, Germany In this study, the applicability of blue-green infrastructure (BGI) is analysed regarding its influence on flooding and on the water balance under future climate changes in Astana, Kazakhstan using two different model approaches. Therefore, different scenarios with stepwise implementation of BGI in a) a coupled 1D/2D model and b) in a conceptual model approach are used. The coupled 1D/2D model is simulated using design storms. The water balance is first calculated on a historical time series and then on 2 different RCP climate projections. The results show that BGI reduces the extent of the flooded area under the selected boundary conditions and has a positive influence on the water balance. The highest implementation level of BGI can reduce the flooded area by up to 70%. In addition, this implementation level of BGI reduces the total runoff by up to 20% in one of the RCP projections. However, it also shows that the local climate is a crucial factor in the applicability of BGI. The present research is conducted under the TERESA project funded by the German Federal Ministry of Education and Research. | |