Abstract
The increase of extreme rainfall intensity and frequency as a result of climate change are predicted to put heavier pressures on existing sewer systems, which could result in urban flooding. By considering different possible levels of greenhouse gas emissions and through the development of sophisticated climate models, it is possible to predict what climate change might look like during the coming century. The broad objective of this chapter is to improve engineers, planners and designers’ appreciation of the potential risks associated with urban drainage systems. This work is applied to a selected site in the North West of England to predict future rainfall using a downscaling model of HadCM3 outputs. The methodology employs the estimated uplift for the future design storm to the existing combined drainage system which is designed according to the current UK standards. Thus the system should sustain rainfalls with a specific return period without detriment to the level of services. Results obtained from InfoWorks CS used in the simulation of the drainage system demonstrated that there is considerable change in the number of flooded manholes together with surcharge in some sewers for winter and summer seasons during the 2080s.
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Abbreviations
- ANN:
-
Artificial Neural Network
- A1FI:
-
High emissions scenario of greenhouse
- A2:
-
Medium-high emissions scenario of greenhouse
- B2:
-
Medium-low emissions scenario of greenhouse
- B1:
-
Low emissions scenario of greenhouse
- CSO:
-
Combined sewers over flow
- DWF:
-
Dry weather flow
- GPD:
-
Generalised Pareto Distribution
- GLM:
-
Generalised Linear Model
- HadCM3:
-
Hadley Centre Coupled Model, version 3
- HI:
-
High impact
- IPCC:
-
Intergovernmental Panel on Climate Change
- MI:
-
Medium impact
- NI:
-
No impact
- UKWIR:
-
United Kingdom Water Industry Research
- UU:
-
United Utilities
- VHI:
-
Very high impact
- WwTW:
-
Wastewater Treatment Works
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Acknowledgements
This work described in this chapter is carried out by Liverpool John Moore University. Special thanks are due United Utilities North West of England and MWH UK Ltd for their great support and Innovyze for providing us with the InfoWork CS software during all the research period.
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Abdellatif, M., Atherton, W., Alkhaddar, R. (2013). Future Challenges in Urban Drainage Systems Under Global Warming. In: Dincer, I., Colpan, C., Kadioglu, F. (eds) Causes, Impacts and Solutions to Global Warming. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7588-0_12
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DOI: https://doi.org/10.1007/978-1-4614-7588-0_12
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