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Article

Weather Risk Assessment for Collective Water Supply and Sewerage Systems

1
Department of Water Supply and Sewerage Systems, Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 35-959 Rzeszow, Poland
2
Department of Water Supply and Sewerage Systems, Faculty of Environmental Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Katarzyna Pietrucha-Urbanik
Water 2021, 13(14), 1970; https://doi.org/10.3390/w13141970
Received: 9 June 2021 / Revised: 15 July 2021 / Accepted: 16 July 2021 / Published: 18 July 2021
(This article belongs to the Special Issue Failure Risk Assessment in Water Supply System)
The weather derivatives market as an instrument of effective weather risk management is still not flexible enough for many industries. The water supply and sewerage industry is sensitive primarily to heavy rainfalls and periods of high and low temperatures: days with heavy rainfall may cause a hydraulic overload of the sewerage systems; on hot days, the water demand increases significantly; on frost days, the risk of water pipe failure grows. The work aimed to summarise methods of weather risk management and propose indices that will help to protect the interests of the water supply and sewerage industry in Poland. Three indices were proposed: a daily precipitation index, frost day index, and hot day index. The frequency of reaching these indices in Poland was verified with the use of meteorological data from 1970–2019, for 19 locations. The non-parametric Mann-Kendall test was used to determine the climate change impact on the exceedance frequency of the proposed indicators. The results showed that the indexes were exceeded in the past once every 6 years, on average. The hot day index was exceeded the least often, but it was the only one with a clear (growing) trend observed. View Full-Text
Keywords: weather risk; rainwater; drainage; water supply; climate change weather risk; rainwater; drainage; water supply; climate change
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MDPI and ACS Style

Rak, J.R.; Wartalska, K.; Kaźmierczak, B. Weather Risk Assessment for Collective Water Supply and Sewerage Systems. Water 2021, 13, 1970. https://doi.org/10.3390/w13141970

AMA Style

Rak JR, Wartalska K, Kaźmierczak B. Weather Risk Assessment for Collective Water Supply and Sewerage Systems. Water. 2021; 13(14):1970. https://doi.org/10.3390/w13141970

Chicago/Turabian Style

Rak, Janusz R., Katarzyna Wartalska, and Bartosz Kaźmierczak. 2021. "Weather Risk Assessment for Collective Water Supply and Sewerage Systems" Water 13, no. 14: 1970. https://doi.org/10.3390/w13141970

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