Analysis of the Effects of Climate Change on Urban Storm Water Runoff Using Statistically Downscaled Precipitation Data and a Change Factor Approach

Impacts of future climate change on urban flood volumes in Hohhot in northern China: benefits of climate change mitigation and adaptations

“…The hydrological component requires inputs of precipitation and subcatchment properties including drainage area, subcatchment width, and imperviousness. The pipe network requires inputs from manholes, pipelines, outfalls, and connections to sub-catchments (Zahmatkesh et al, 2015;Chang et al, 2013). Basic flow-routing models include steady flow, kinematic, and dynamic wave methods.…”

“…Urban drainage systems have been constructed to provide carrying and conveyance capacities at a desired frequency to prevent urban flooding. However, the design of drainage systems is often based on historical precipitation statistics for a certain period of time, without considering the potential changes in precipitation extremes for the designed return periods (Yazdanfar and Sharma, 2015;Peng et al, 2015;Zahmatkesh et al, 2015). It is likely that drainage systems would be over-whelmed by additional runoff induced by climate change, which may lead to increased flood frequency and magnitude, disruption of transportation systems, and increased health risks (Chang et al, 2013;Abdellatif et al, 2015).…”

“…Several studies have also investigated the role of climate change mitigation or adaptation in reducing urban flood damages and risks under climate change scenarios (Alfieri et al, 2016;ArnbjergNielsen et al, 2015;Moore et al, 2016;Poussin et al, 2012). The relationship between changes in precipitation intensity and flood volume has also been well explored, providing additional insights into drainage design strategies (Olsson et al, 2009;Willems et al, 2012;Zahmatkesh et al, 2015). However, previous studies on the effects of climate change mitigation and adaptation are typically conducted separately, and it is unclear which strategy is more effective at reducing urban floods.…”

Watershed Response to Bias-Corrected Improved Skilled Precipitation and Temperature under Future Climate - A Case Study on Spencer Creek Watershed, Ontario, Canada

“…Q 95 and Q 10 are the flow values that are equaled or exceeded 95% and 10% of the time, respectively. Q 95 and Q 10 are used for analysis of low flow and high flow, respectively [49]. As illustrated in Figures 10 and 11, the low flow decreased for all RCM+GCM pairs with the highest decrease (28.6%) exhibited by WRFG+CCSM model and lowest decrease (3.4%) exhibited by RCM3+CGCM3, and the calculated average low flow value for eight models indicates a decrease by 16.7% under future climate condition.…”

Preface

“…The increase in precipitation amount, intensity, and frequency in urban areas is expected to produce an increase in the peak and volume of storm runoff (Rawlins et al 2015;Zahmatkesh et al 2014), transporting a high quantity of sediments and pollutants to water bodies. To mitigate the impacts of climate change in urban areas, it is important to reduce soil surface sealing, limit urban sprawl, favor the development of green infrastructure, and favor policies that promote compact cities and green roof implementation (Pereira et al 2014).…”