scholarly journals A Study on Implementation of Low Impact Development as an Urban Stormwater Management Technique in Srinagar City: Current Trends, Issues and Challenges

2021 ◽  
Vol 9 (8) ◽  
pp. 2629-2636
Author(s):  
Basrah Bilal
Keyword(s):  
Climate Change ◽  
Stormwater Management ◽  
Low Impact Development ◽  
Urban Stormwater ◽  
Urban Floods ◽  
Urban Flood ◽  
Urban Stormwater Management ◽  
Flood Impacts ◽  
The World ◽  
Srinagar City

Abstract: The Severity as well as the frequency of short-duration, but damaging, urban area floods have increased in recent years across the world. Alteration to the urban micro-climate due to global climate change impacts may also exacerbate the situation in the near future. The events of floods have increased in Srinagar city as well over the past decades. Sustainable urban stormwater management using low impact development (LID) techniques, along with conventional urban stormwater management systems, can be implemented to mitigate climate-change-induced flood impacts in Srinagar. In this study, the supposed effectiveness of LIDs in the mitigation of urban flood in Srinagar city is analysed keeping in view their limitations at the same time. A critical research on the success of these techniques in urban flood mitigation planning in Srinagar city is also recommended. On summarising different LID approaches in the world, the results revealed that LIDs can be an efficient method for mitigating urban flood impacts. Most of the LID devices developed so far, however, are found to be effective only for small flood peaks. The major challenges include identification of the best LID practices for the region of interest, efficiency improvements in technical areas, and site-specific optimization of LID parameters. Research and improvements in these areas will allow better mitigation of climate-change-induced urban floods in a cost-effective manner and will also assist in the achievement of sustainable development goals for Srinagar city and will help us to tackle the increasing problems of water logging and floods in the summer capital of Jammu and Kashmir. Keywords: Climate change, Urban floods, stormwater management, Low Impact Development, Srinagar city, Drainage in Srinagar, Pluvial flooding.

scholarly journals Impacts of future climate change on urban flood risks: benefits of climate mitigation and adaptations

2016 ◽  
Author(s):  
Qianqian Zhou ◽  
Guoyong Leng ◽  
Maoyi Huang
Keyword(s):  
Climate Change ◽  
Low Impact Development ◽  
Future Climate ◽  
Future Climate Change ◽  
Climate Mitigation ◽  
Regular Feature ◽  
Urban Floods ◽  
Urban Flood ◽  
Flood Risks ◽  
Adaptation Scenarios

Abstract. As China is urbanized, flooding has become a regular feature in major cities. Assessing potential urban flood risks under climate change has become crucial for better managing such risks given the severity of the devastating disasters (e.g., the current 2016 flooding across China). Although the impacts of future climate change on urban flood risks have been investigated in many existing studies, the effects of both climate mitigation and adaptations have rarely been accounted for in a consistent framework. In this study, we assess the benefits of (1) avoided greenhouse gas (GHG) emissions and (2) adapting drainage systems on urban flood risks within the context of global warming through a case study in the Northern China. The urban drainage model, Storm Water Management Model (SWMM), was employed to simulate urban floods under current conditions and two feasible adaptation scenarios (i.e., pipe enlargement and low impact development), driven by bias-corrected meteorological forcing from five general circulation models (GCMs) in the Coupled Model Intercomparison Project Phase 5 (CMIP5) archive Based on the results, the volume of urban floods is projected to increase by 52 % in the period of 2020–2040 when compared to that in 1971–2000 under the business-as-usual scenario (i.e., Representative Concentration Pathways (RCP) 8.5). The magnitudes of urban floods are found to increase nonlinearly with changes in precipitation intensity, and highest risks associated with floods with smaller return periods below 10 years are identified. Despite the high level of uncertainty, it is obvious that avoided greenhouse emissions will be beneficial in terms of reducing risks associated with urban floods. On average, the magnitude of projected urban floods under RCP 2.6 is 13 % less than that under RCP8.5, demonstrating the importance of global-scale efforts on GHG emission reduction in regulating local to regional hydrometeorological responses. Moreover, the two feasible adaptation scenarios are shown to be able to further reduce risk associated with floods effectively. This study highlights the importance of accounting for local climate adaptation efforts in assessing urban flood risks under a changing climate.

scholarly journals Advances in Urban Stormwater Management in Japan: A Review

2021 ◽  
Vol 16 (3) ◽  
pp. 310-320
Author(s):  
Yoshihiro Shibuo ◽  
Hiroaki Furumai ◽  
◽  
Keyword(s):  
Stormwater Management ◽  
Global Climate ◽  
Flood Modeling ◽  
Urban Stormwater ◽  
Modeling Framework ◽  
Spatiotemporal Resolution ◽  
Urban Flood ◽  
Urban Stormwater Management ◽  
Structural Measures ◽  
The Impact

The series of annual flood disasters that struck Japan in recent years pose challenges to urban stormwater management. Japan has been implementing nation-wide hydrometeorological observation through a dense network of rain gauges. Since the recent decade, ground radars have been deployed to observe heavy rainfall with high spatiotemporal resolution as a countermeasure. While commercial software is popular in designing stormwater drainage systems, several integrated urban flood models have been developed domestically and are applicable in stormwater management. A paradigm shift with the rise of Internet of Things (IoT) provides an inexperienced opportunity in hydrological observation, and has been implemented for monitoring sewer network conditions. Despite this broad scope of research works and technological innovations, such advancement is not internationally recognized yet. The present study aims to review the development and role of science and technology in stormwater management in Japan, focusing specifically on rainfall observation, integrated urban flood modelling, and emerging technologies for stormwater monitoring. In addition, the possible future direction of stormwater management is envisioned. Considering the series of record-breaking rainfall events that struck Japan, we will have to face more severe challenges in urban flood management alongside the impact of global climate change. As compared to structural measures, which are subject to budgetary constraints, the relative importance of non-structural measures is increasing; therefore, effective application of numerical modeling techniques is required. A common weakness of the urban flood modeling framework is the limited availability of observations in sewer networks, which can be relaxed by emerging IoT based observations. The fusion of IoT based observations with an integrated urban flood modeling technique appears to the emerging technology for stormwater management.

scholarly journals Future Scenarios Modeling of Urban Stormwater Management Response to Impacts of Climate Change and Urbanization

2017 ◽  
Vol 45 (10) ◽  
pp. 1700111 ◽  
Author(s):  
Mo Wang ◽  
Dong Q. Zhang ◽  
Jin Su ◽  
Antoine P. Trzcinski ◽  
Jian W. Dong ◽  
...  
Keyword(s):  
Climate Change ◽  
Stormwater Management ◽  
Future Scenarios ◽  
Urban Stormwater ◽  
Urban Stormwater Management ◽  
Impacts Of Climate Change

scholarly journals A review of the progress in Chinese Sponge City programme: challenges and opportunities for urban stormwater management

2021 ◽  
Author(s):  
Feiran Li ◽  
Jianfeng Zhang
Keyword(s):  
Stormwater Management ◽  
Environmental Changes ◽  
New Technology ◽  
Low Impact Development ◽  
Management Plan ◽  
Urban Stormwater ◽  
Sponge City ◽  
Urban Stormwater Management ◽  
Challenges And Opportunities ◽  
And Coping

Abstract Urbanization has been the main driving force for China's economic growth in recent years; however, the highly concentrated urbanized lifestyle has brought many environmental problems to residents, the most urgent of which is urban stormwater management. Some countries have proposed plans for urban stormwater management, such as Low Impact Development (LID), Water Sensitive Urban Design (WSUD), Sustainable Urban Drainage Systems (SUDS). As a country with relatively underdeveloped urban stormwater management, China's government proposed an ambitious urban stormwater management plan in 2014, called the Sponge City Programme, which means that a city is designed to act like a sponge, with good ‘resilience’ in adapting to environmental changes and coping with natural disasters. As of 2021, this programme has led to SCP projects in 30 pilot districts all over China, the Sponge City Programme construction impacts both urban development and resident's life. However, there are risks and challenges associated with these projects. Using government research documents as a framework, this paper carefully reviews the progress of the Sponge City Programme in recent years and shows the main challenges faced by Sponge City Programme in terms of connotation, investment, and technology. On this basis, the paper puts forward practical suggestions for the development of the Sponge City Programme and details potential opportunities of new technology, ideology, planning, and flexible investment.

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