American Society of Civil Engineers


Hydraulic Impacts on Urban Drainage Systems due to Changes in Rainfall Caused by Climatic Change


by Karolina Berggren, (corresponding author), (Div. of Architecture and Infrastructure, Luleå Univ. of Technology, S-971 87 Luleå, Sweden. E-mail: Karolina.Berggren@ltu.se), Mats Olofsson, (Div. of Architecture and Infrastructure, Luleå Univ. of Technology, S-971 87 Luleå, Sweden.), Maria Viklander, (Div. of Architecture and Infrastructure, Luleå Univ. of Technology, S-971 87 Luleå, Sweden.), Gilbert Svensson, (Div. of Architecture and Infrastructure, Luleå Univ. of Technology, S-971 87 Luleå, Sweden; and Urban Water Management AB, Chalmers Teknikpark, S-412 88 Göteborg, Sweden.), and Anna-Maria Gustafsson, (Div. of Architecture and Infrastructure, Luleå Univ. of Technology, S-971 87 Luleå, Sweden.)

Journal of Hydrologic Engineering, Vol. 17, No. 1, January 2012, pp. 92-98, (doi:  http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000406)

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Document type: Journal Paper
Abstract: Changes in climate were a growing concern during the last decade and will be even greater in the coming years. When investigating the impact from changes in the climate on urban drainage systems, two challenges are (1) what type of input rainfall data to use and (2) what parameters to use to measure the impacts. The overall objective of this study is to investigate the hydraulic performance of urban drainage systems related to changes in rainfall, and through these hydraulic parameters describe the impact of climate change. Input rainfall data represent today’s climate and three future time periods (2011–2040, 2041–2070, and 2071–2100). The hydraulic parameters used were water levels in nodes (e.g., as the number of floods, and frequency and duration of floods) and pipe flow ratio. For the study area, the number of flooded nodes and the geographical distribution of floods will increase in the future, as will both the flooding frequency and the duration of floods.


ASCE Subject Headings:
Urban areas
Drainage
Rainfall
Climate change
Parameters
Simulation
Stormwater management

Author Keywords:
Urban drainage
Stormwater management
Climate change
Hydraulic parameters
Model simulations