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The impacts of climate change and urbanisation on drainage in Helsingborg, Sweden: combined sewer system.

Semadeni Davies, Annette LU ; Hernebring, C.; Svensson, G. and Gustafsson, L-G (2008) In Journal of Hydrology 1-2(350). p.100-113
Abstract
Assessment of the potential impact of climate change on water systems has been an essential part of hydrological research over the last couple of decades. However, the notion that such assessments should also include technological, demographic and land use changes is relatively recent. In this study, the potential impacts of climate change and continued urbanisation on waste and stormwater flows in the combined sewer of central Helsingborg, South Sweden, have been assessed using a series of DHI MOUSE simulations run with present conditions as well as two climate change scenarios and three progressive urbanisation storylines. At present, overflows of untreated wastewater following heavy rainfalls are a major source of pollution to the... (More)
Assessment of the potential impact of climate change on water systems has been an essential part of hydrological research over the last couple of decades. However, the notion that such assessments should also include technological, demographic and land use changes is relatively recent. In this study, the potential impacts of climate change and continued urbanisation on waste and stormwater flows in the combined sewer of central Helsingborg, South Sweden, have been assessed using a series of DHI MOUSE simulations run with present conditions as well as two climate change scenarios and three progressive urbanisation storylines. At present, overflows of untreated wastewater following heavy rainfalls are a major source of pollution to the coastal receiving waters and there is a worry that increased rainfall could exacerbate the problem. Sewer flows resulting from different urbanisation storylines were simulated for two 10-year periods corresponding to present (1994-2003) and future climates (nominally 2081-2090). In all, 12 simulations were made. Climate change was simulated by altering a high-resolution rainfall record according to the climate-change signal derived from a regional climate model. Urbanisation was simulated by altering model parameters to reflect current trends in demographics and water management. It was found that city growth and projected increases in precipitation, both together and alone, are set to worsen the current drainage problems. Conversely, system renovation and installation of sustainable urban drainage systems (SUDS) has a positive effect on the urban environment in general and can largely allay the adverse impacts of both urbanisation and climate change. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Combined sewer overflow (CSO), Climate change, Development, Sustainable urban drainage systems (SUDS), Best management practices (BMPS), Waste water, Stormwater
in
Journal of Hydrology
volume
1-2
issue
350
pages
100 - 113
publisher
Elsevier
external identifiers
  • wos:000253600200009
  • scopus:38649101016
ISSN
0022-1694
DOI
10.1016/j.jhydrol.2007.05.028
language
English
LU publication?
no
id
e005a7b1-4ff7-46ad-af9f-d78a00b75ee2 (old id 1002220)
date added to LUP
2008-04-25 16:14:45
date last changed
2017-11-05 03:57:47
@article{e005a7b1-4ff7-46ad-af9f-d78a00b75ee2,
  abstract     = {Assessment of the potential impact of climate change on water systems has been an essential part of hydrological research over the last couple of decades. However, the notion that such assessments should also include technological, demographic and land use changes is relatively recent. In this study, the potential impacts of climate change and continued urbanisation on waste and stormwater flows in the combined sewer of central Helsingborg, South Sweden, have been assessed using a series of DHI MOUSE simulations run with present conditions as well as two climate change scenarios and three progressive urbanisation storylines. At present, overflows of untreated wastewater following heavy rainfalls are a major source of pollution to the coastal receiving waters and there is a worry that increased rainfall could exacerbate the problem. Sewer flows resulting from different urbanisation storylines were simulated for two 10-year periods corresponding to present (1994-2003) and future climates (nominally 2081-2090). In all, 12 simulations were made. Climate change was simulated by altering a high-resolution rainfall record according to the climate-change signal derived from a regional climate model. Urbanisation was simulated by altering model parameters to reflect current trends in demographics and water management. It was found that city growth and projected increases in precipitation, both together and alone, are set to worsen the current drainage problems. Conversely, system renovation and installation of sustainable urban drainage systems (SUDS) has a positive effect on the urban environment in general and can largely allay the adverse impacts of both urbanisation and climate change.},
  author       = {Semadeni Davies, Annette and Hernebring, C. and Svensson, G. and Gustafsson, L-G},
  issn         = {0022-1694},
  keyword      = {Combined sewer overflow (CSO),Climate change,Development,Sustainable urban drainage systems (SUDS),Best management practices (BMPS),Waste water,Stormwater},
  language     = {eng},
  number       = {350},
  pages        = {100--113},
  publisher    = {Elsevier},
  series       = {Journal of Hydrology},
  title        = {The impacts of climate change and urbanisation on drainage in Helsingborg, Sweden: combined sewer system.},
  url          = {http://dx.doi.org/10.1016/j.jhydrol.2007.05.028},
  volume       = {1-2},
  year         = {2008},
}