Weather condition and Urban infrastructure for sustainable water supply protection from water meter frost: the case of Seoul

IF 1.6 3区 环境科学与生态学 Q3 WATER RESOURCES Urban Water Journal Pub Date : 2023-10-10 DOI:10.1080/1573062x.2023.2263429
Woosuk Choi
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Abstract

Wintertime water meter frost is a substantial threat to sustainable water supply. However, little is known about the social and environmental conditions associated with its occurrence. This study identifies characteristics of water meter frost in Seoul, South Korea, by examining natural and anthropogenic conditions, such as local weather and urban infrastructures. The deterministic threshold of seasonal water meter frosts is the number of cold days below −10°C. The wall-type water meter was the first to freeze during a cold surge, whereas the manhole-type water meter froze gradually, which increased after a persistent cold surge of more than three days. In addition, deteriorated buildings (older than 30 years), narrow pipes with diameters of 15–20 mm, and housing types such as townhouses and shopping malls were found to be vulnerable to frost. The critical thresholds proposed in this study are necessary for maintaining a stable water supply in megacities in cold regions, world-wide.
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天气条件和城市基础设施的可持续供水保护水表霜:以首尔为例
冬季水表结霜是对可持续供水的重大威胁。然而,人们对其发生的社会和环境条件知之甚少。这项研究通过考察当地天气和城市基础设施等自然和人为条件,确定了韩国首尔水表霜的特征。季节性水表霜的确定性阈值是低于−10°C的寒冷日数。在寒潮期间,壁式水表首先冻结,而井口式水表逐渐冻结,在持续三天以上的寒潮后,冻结率增加。此外,老化的建筑物(30年以上)、直径15 ~ 20毫米的狭窄管道、联排别墅和购物中心等住宅类型也容易发生霜冻。本研究提出的临界阈值对于维持全球寒冷地区特大城市的稳定供水是必要的。
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来源期刊
Urban Water Journal
Urban Water Journal WATER RESOURCES-
CiteScore
4.40
自引率
11.10%
发文量
101
审稿时长
3 months
期刊介绍: Urban Water Journal provides a forum for the research and professional communities dealing with water systems in the urban environment, directly contributing to the furtherance of sustainable development. Particular emphasis is placed on the analysis of interrelationships and interactions between the individual water systems, urban water bodies and the wider environment. The Journal encourages the adoption of an integrated approach, and system''s thinking to solve the numerous problems associated with sustainable urban water management. Urban Water Journal focuses on the water-related infrastructure in the city: namely potable water supply, treatment and distribution; wastewater collection, treatment and management, and environmental return; storm drainage and urban flood management. Specific topics of interest include: network design, optimisation, management, operation and rehabilitation; novel treatment processes for water and wastewater, resource recovery, treatment plant design and optimisation as well as treatment plants as part of the integrated urban water system; demand management and water efficiency, water recycling and source control; stormwater management, urban flood risk quantification and management; monitoring, utilisation and management of urban water bodies including groundwater; water-sensitive planning and design (including analysis of interactions of the urban water cycle with city planning and green infrastructure); resilience of the urban water system, long term scenarios to manage uncertainty, system stress testing; data needs, smart metering and sensors, advanced data analytics for knowledge discovery, quantification and management of uncertainty, smart technologies for urban water systems; decision-support and informatic tools;...
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