Pub Date : 2023-10-25DOI: 10.1080/1573062x.2023.2263435
Daniel Miller-Moran, Nemanja Trifunović, Maria Kennedy, Zoran Kapelan
Water distribution networks (WDNs) require large capital investment and ongoing operational costs, resulting in their optimisation being a highly researched field. Despite the benefits tanks bring to networks, most optimisation models omit them as decision variables due to the complexity they can introduce to heuristic approaches. This paper addresses the least-cost optimisation of WDN design and operation through the development and application of the Small-network Configurator for Optimising Pump Energy consumption (SCOPE). The SCOPE algorithm incorporates pipes, pumps and tanks as decision variables and solves the optimisation problem through an iterative approach that pairs EPANET simulation results with subsequent hydraulic calculations to converge on the pumping and storage configuration which yields the lowest energy consumption. The SCOPE output can then be used to seed further optimisation techniques. This approach has been tested on the synthetic Nametown and real-life Dili networks and demonstrated annual cost savings of 10% and 25%, respectively.
{"title":"Optimisation of pumping and storage design through iterative hydraulic adjustment for minimum energy consumption","authors":"Daniel Miller-Moran, Nemanja Trifunović, Maria Kennedy, Zoran Kapelan","doi":"10.1080/1573062x.2023.2263435","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2263435","url":null,"abstract":"Water distribution networks (WDNs) require large capital investment and ongoing operational costs, resulting in their optimisation being a highly researched field. Despite the benefits tanks bring to networks, most optimisation models omit them as decision variables due to the complexity they can introduce to heuristic approaches. This paper addresses the least-cost optimisation of WDN design and operation through the development and application of the Small-network Configurator for Optimising Pump Energy consumption (SCOPE). The SCOPE algorithm incorporates pipes, pumps and tanks as decision variables and solves the optimisation problem through an iterative approach that pairs EPANET simulation results with subsequent hydraulic calculations to converge on the pumping and storage configuration which yields the lowest energy consumption. The SCOPE output can then be used to seed further optimisation techniques. This approach has been tested on the synthetic Nametown and real-life Dili networks and demonstrated annual cost savings of 10% and 25%, respectively.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134973912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-16DOI: 10.1080/1573062X.2023.2266635
Nilo Nascimento, Neil Armitage, Juan Pablo Rodriguez Sanches, J. P. Leitao
{"title":"Editorial: UWJ special edition on water management in developing countries","authors":"Nilo Nascimento, Neil Armitage, Juan Pablo Rodriguez Sanches, J. P. Leitao","doi":"10.1080/1573062X.2023.2266635","DOIUrl":"https://doi.org/10.1080/1573062X.2023.2266635","url":null,"abstract":"","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"5 1","pages":"1231 - 1236"},"PeriodicalIF":2.7,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139318606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-10DOI: 10.1080/1573062x.2023.2263430
Anabella Montico, Paula Andrea Zapperi, Verónica Gil
ABSTRACTThis work aims to evaluate the water regulation ecosystem service in a peri-urban sector of Bahía Blanca, an intermediate city of Argentina. Variations in the level of provision are analyzed within the framework of an urbanization scenario. For this purpose, we used the tool ‘Retention of excess precipitation by vegetation cover’, included in the ECOSER protocol, which is based on the Curve Number method.Future urbanization in Bahía Blanca peri-urban area would decrease the level of provision of the water regulation ecosystem service between 0.5 and 2.5%. The best response in rainfall retention was observed for the shrubland land cover. Likewise, the provision level of the ecosystem service decreases regarding the Antecedent Runoff Conditions and the amount of rainfall. This study contributes to generating knowledge to understand the dynamics of a particularly important ecosystem service in cities, given its direct relationship with stormwater management.KEYWORDS: Ecosystem Serviceswater regulationurban Planningperi-urbanstormwater managementArgentina Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementNon-digital data supporting this study are curated at Universidad Nacional del Sur, ArgentinaAdditional informationFundingThis study was funded by the research project ‘“Physical Geography Applied to the study of the interaction between society and nature. Environmental problems at various tempo-spatial scales”’ (Grant number 24/G092) subsidized by the General Secretary of Science and Technology of the Universidad Nacional del Sur.
{"title":"Water regulation ecosystem service facing cities growth. Evaluation of the effects of an urbanization scenario in an intermediate city, Argentina","authors":"Anabella Montico, Paula Andrea Zapperi, Verónica Gil","doi":"10.1080/1573062x.2023.2263430","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2263430","url":null,"abstract":"ABSTRACTThis work aims to evaluate the water regulation ecosystem service in a peri-urban sector of Bahía Blanca, an intermediate city of Argentina. Variations in the level of provision are analyzed within the framework of an urbanization scenario. For this purpose, we used the tool ‘Retention of excess precipitation by vegetation cover’, included in the ECOSER protocol, which is based on the Curve Number method.Future urbanization in Bahía Blanca peri-urban area would decrease the level of provision of the water regulation ecosystem service between 0.5 and 2.5%. The best response in rainfall retention was observed for the shrubland land cover. Likewise, the provision level of the ecosystem service decreases regarding the Antecedent Runoff Conditions and the amount of rainfall. This study contributes to generating knowledge to understand the dynamics of a particularly important ecosystem service in cities, given its direct relationship with stormwater management.KEYWORDS: Ecosystem Serviceswater regulationurban Planningperi-urbanstormwater managementArgentina Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementNon-digital data supporting this study are curated at Universidad Nacional del Sur, ArgentinaAdditional informationFundingThis study was funded by the research project ‘“Physical Geography Applied to the study of the interaction between society and nature. Environmental problems at various tempo-spatial scales”’ (Grant number 24/G092) subsidized by the General Secretary of Science and Technology of the Universidad Nacional del Sur.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136352554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-10DOI: 10.1080/1573062x.2023.2263429
Woosuk Choi
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.
{"title":"Weather condition and Urban infrastructure for sustainable water supply protection from water meter frost: the case of Seoul","authors":"Woosuk Choi","doi":"10.1080/1573062x.2023.2263429","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2263429","url":null,"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.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136353508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-05DOI: 10.1080/1573062x.2023.2254748
Noha Kamal, Mahmoud S. Ali
ABSTRACTThe overlap of different fields has made it easy to introduce a real development of new technologies. New techniques used in the water sector are introduced; the importance of integration with each other will be increased to work as one unit with more efficiency and effectiveness. Integrating the real-time control of a supervisory control and data acquisition system (SCADA) and the data management and analysis capabilities of a geographic information system (GIS) can assist operators and decision-makers in disaster response and better system control. The objective of this paper is to evaluate the potential use of SCADA in conjunction with GIS to control and manage a water desalination plant network. The aid of the developed integrated system in the management of a water desalination system can be accessed on an interactive single dashboard for the network to simulate real situations through the data collected at each site that can be provided in real-time by SCADA, in addition to the results of analysis of these data that help to take the right decision and deliver the instructions thereon directly to the field devices to deal with any case of emergencies. In addition, this paper introduces an implementation approach of a new category of decision-support tools based on the integration of GIS and SCADA in implemented water desalination plants at the National Water Research Center (NWRC). A general review of both systems including their potentials in water desalination systems and the possibility of integration with each other has been introduced. This study demonstrates how integrating GIS and SCADA into a single dashboard can aid in data acquisition and provide a better understanding of the communication between the various sites and systems’ facility administration, despite the fact that such integration is uncommon because both systems use different IT platforms.KEYWORDS: GISSCADAwater desalinationdashboardgeodatabase AbbreviationsGIS=Geographic Information SystemSCADA=Supervisory Control and Data Acquisition systemNWRC=National Water Research CenterGPS=Global Positioning SystemH&H=Hydrological and Hydraulic modeling systemRO=Reverse OsmosisRTUs=Remote Terminal UnitsPLC=Programmable Logic ControllerIT=Information TechnologyDisclosure statementNo potential conflict of interest was reported by the author(s).Data availability statement‘Due to the nature of the research, due to commercial supporting data is not available’.
{"title":"Improving the operational efficiency of water desalination systems through the integration of GIS-SCADA","authors":"Noha Kamal, Mahmoud S. Ali","doi":"10.1080/1573062x.2023.2254748","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2254748","url":null,"abstract":"ABSTRACTThe overlap of different fields has made it easy to introduce a real development of new technologies. New techniques used in the water sector are introduced; the importance of integration with each other will be increased to work as one unit with more efficiency and effectiveness. Integrating the real-time control of a supervisory control and data acquisition system (SCADA) and the data management and analysis capabilities of a geographic information system (GIS) can assist operators and decision-makers in disaster response and better system control. The objective of this paper is to evaluate the potential use of SCADA in conjunction with GIS to control and manage a water desalination plant network. The aid of the developed integrated system in the management of a water desalination system can be accessed on an interactive single dashboard for the network to simulate real situations through the data collected at each site that can be provided in real-time by SCADA, in addition to the results of analysis of these data that help to take the right decision and deliver the instructions thereon directly to the field devices to deal with any case of emergencies. In addition, this paper introduces an implementation approach of a new category of decision-support tools based on the integration of GIS and SCADA in implemented water desalination plants at the National Water Research Center (NWRC). A general review of both systems including their potentials in water desalination systems and the possibility of integration with each other has been introduced. This study demonstrates how integrating GIS and SCADA into a single dashboard can aid in data acquisition and provide a better understanding of the communication between the various sites and systems’ facility administration, despite the fact that such integration is uncommon because both systems use different IT platforms.KEYWORDS: GISSCADAwater desalinationdashboardgeodatabase AbbreviationsGIS=Geographic Information SystemSCADA=Supervisory Control and Data Acquisition systemNWRC=National Water Research CenterGPS=Global Positioning SystemH&H=Hydrological and Hydraulic modeling systemRO=Reverse OsmosisRTUs=Remote Terminal UnitsPLC=Programmable Logic ControllerIT=Information TechnologyDisclosure statementNo potential conflict of interest was reported by the author(s).Data availability statement‘Due to the nature of the research, due to commercial supporting data is not available’.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134975208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.1080/1573062x.2023.2263424
Niuosha Hedaiaty Marzouny, Mohammadreza Jalili Ghazizadeh, Iman Moslehi, Mahdi Komeily
ABSTRACTAdvanced pressure control facilitates the smart management of water distribution networks (WDNs). In this study, an optimization-based method is proposed to develop a time-based schedule for pressure reducing valves (PRVs). For this purpose, a single-objective optimization problem is initially delineated, seeking to minimize spatiotemporal variations in the nodal pressures. Then, the application of PRVs is addressed in two scenarios, viz. individual (i.e. employing PRVs) and hybrid (i.e. the combined use of PRVs and throttle control valves [TCVs]). The proposed scenarios are subsequently applied to the hydraulic model of synthetic and real WDNs. A set of hydraulic evaluation indices, including variation index (VI), are further measured to spot the optimal pressure management scenario. The study results establish that the hybrid scenario leads to a larger decrease in the VI along with more efficient pressure control (namely, 39.9% and 11.8% in the synthetic and real WDNs, respectively), compared with the individual one.KEYWORDS: Pressure managementpressure reducing valvethrottle control valvesimulation-optimization modelGenetic algorithm AcknowledgementsThe authors would like to extend their appreciation to Mashhad Water and Wastewater Company for providing the required data associated with the water distribution network examined, which made this study possible.Disclosure statementNo potential conflict of interest was reported by the author(s).Availability of dataThe data that support the findings of this study are available from the corresponding author (Jalili Ghazizadeh, M.) upon reasonable request.
{"title":"Application of pressure reducing and throttle control valves for optimal pressure management in water distribution networks","authors":"Niuosha Hedaiaty Marzouny, Mohammadreza Jalili Ghazizadeh, Iman Moslehi, Mahdi Komeily","doi":"10.1080/1573062x.2023.2263424","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2263424","url":null,"abstract":"ABSTRACTAdvanced pressure control facilitates the smart management of water distribution networks (WDNs). In this study, an optimization-based method is proposed to develop a time-based schedule for pressure reducing valves (PRVs). For this purpose, a single-objective optimization problem is initially delineated, seeking to minimize spatiotemporal variations in the nodal pressures. Then, the application of PRVs is addressed in two scenarios, viz. individual (i.e. employing PRVs) and hybrid (i.e. the combined use of PRVs and throttle control valves [TCVs]). The proposed scenarios are subsequently applied to the hydraulic model of synthetic and real WDNs. A set of hydraulic evaluation indices, including variation index (VI), are further measured to spot the optimal pressure management scenario. The study results establish that the hybrid scenario leads to a larger decrease in the VI along with more efficient pressure control (namely, 39.9% and 11.8% in the synthetic and real WDNs, respectively), compared with the individual one.KEYWORDS: Pressure managementpressure reducing valvethrottle control valvesimulation-optimization modelGenetic algorithm AcknowledgementsThe authors would like to extend their appreciation to Mashhad Water and Wastewater Company for providing the required data associated with the water distribution network examined, which made this study possible.Disclosure statementNo potential conflict of interest was reported by the author(s).Availability of dataThe data that support the findings of this study are available from the corresponding author (Jalili Ghazizadeh, M.) upon reasonable request.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-28DOI: 10.1080/1573062x.2023.2263426
Bini Kiron, Ram Kailash Prasad
ABSTRACTIntermittent water supply (IWS) system refers to a system of water supply that delivers water to consumers for a fixed period (2 hours, 3 hours, 4 hours, etc.), which is less than 24 hours a day. Literature shows that the issue of inequity has been a major concern in IWS. In this study, an attempt has been made to simulate a new way of operation of IWS by including volume of nodal demand, such that, the flow becomes uncontrolled volume-driven pressure dependent. The novel methodology presented makes use of a pressure sustaining valve (PSV), which rearranges the flow within the network, thus improving the equity in IWS. Further, the study aims to quantify the equity in IWS by formulating two different approaches: uncontrolled pressure-dependent analysis (UC-PDA) and uncontrolled volume-driven pressure-dependent analysis (UC-VDPDA). Both approaches have been applied to three different water distribution networks. Results show that UC-VDPDA provides a more equitable supply in terms of getting a fair share of water to the consumers.KEYWORDS: Intermittent water supplyuncontrolled pressure-dependent analysisuncontrolled volume-driven pressure-dependent analysiswater distribution networksequity Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementSome or all data, models or codes that support the findings of the study are available from the corresponding author upon reasonable request.Important Notation AP=Artificial pipeAR=Artificial reservoirAT=Artificial tankCV=Check valveDDA=Demand-driven analysisDN=Demand nodeFN=Fictitious nodeIWS=Intermittent water supplyPDA=Pressure-dependent analysisPSV=Pressure-sustaining valveQj=Demand at node jQjavai=Actual available outflow at node jQjreq=Required demand at node jSN=Source nodeUC-PDA=Uncontrolled pressure-dependent analysisUC-VDPDA=Uncontrolled volume-driven pressure-dependent analysisVDA=Volume-driven analysis
{"title":"Simulating equity in intermittent water supply using pressure sustaining valve in EPANET 2.2","authors":"Bini Kiron, Ram Kailash Prasad","doi":"10.1080/1573062x.2023.2263426","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2263426","url":null,"abstract":"ABSTRACTIntermittent water supply (IWS) system refers to a system of water supply that delivers water to consumers for a fixed period (2 hours, 3 hours, 4 hours, etc.), which is less than 24 hours a day. Literature shows that the issue of inequity has been a major concern in IWS. In this study, an attempt has been made to simulate a new way of operation of IWS by including volume of nodal demand, such that, the flow becomes uncontrolled volume-driven pressure dependent. The novel methodology presented makes use of a pressure sustaining valve (PSV), which rearranges the flow within the network, thus improving the equity in IWS. Further, the study aims to quantify the equity in IWS by formulating two different approaches: uncontrolled pressure-dependent analysis (UC-PDA) and uncontrolled volume-driven pressure-dependent analysis (UC-VDPDA). Both approaches have been applied to three different water distribution networks. Results show that UC-VDPDA provides a more equitable supply in terms of getting a fair share of water to the consumers.KEYWORDS: Intermittent water supplyuncontrolled pressure-dependent analysisuncontrolled volume-driven pressure-dependent analysiswater distribution networksequity Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementSome or all data, models or codes that support the findings of the study are available from the corresponding author upon reasonable request.Important Notation AP=Artificial pipeAR=Artificial reservoirAT=Artificial tankCV=Check valveDDA=Demand-driven analysisDN=Demand nodeFN=Fictitious nodeIWS=Intermittent water supplyPDA=Pressure-dependent analysisPSV=Pressure-sustaining valveQj=Demand at node jQjavai=Actual available outflow at node jQjreq=Required demand at node jSN=Source nodeUC-PDA=Uncontrolled pressure-dependent analysisUC-VDPDA=Uncontrolled volume-driven pressure-dependent analysisVDA=Volume-driven analysis","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135386861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTLand use/cover (LULC) changes significantly impact various environmental and social factors. In this study, we used a hybrid model that integrates Multi-Layer Perceptron-Markov Chain Analysis to forecast changes in LULC of Chennai city and its surrounding area until the year 2101. We also evaluated the impact of these changes on groundwater recharge potential zones (RPZ) and suggested policy recommendations for better urban planning. Our results indicate a rapid increase in built-up areas (238 km2/decade) and a corresponding decrease in agricultural lands (167 km2/decade), with a continuous reduction in the area occupied by the waterbodies (15 km2/decade). Furthermore, the estimated changes in RPZ demonstrate a decline in high recharge potential areas, emphasizing the need for effective policies to enhance groundwater recharge. The study provides insights into sustainable urban development. We recommended policies for promoting green urban spaces to mitigate LULC impacts on groundwater recharge.KEYWORDS: LULCurbanizationweighed overlay analysisrecharge potentialANNMLP-MCA AcknowledgementsWe thank the Department of Science and Technology, Government of India (Grand No: DST/TM/WTI/WIC/2K17/82(G)) for financial support. We also thank WRIS, India for providing LULC data.Disclosure statementNo potential conflict of interest was reported by the author(s).Author’s contributionLE: conceptualized the idea of this study. PVRS: collected, analyzed and interpreted the data. MRK: interpreted LULC changes. LK: interpreted RPZ changes. All authors were involved in writing and approval of the final manuscript.Availability of data and materialsAll data collected, generated, and analyzed in this study are available upon request per ethical guidelines and permission of the funding agency.Additional informationFundingThe authors thank the Department of Science and Technology, Government of India [Grand No: DST/TM/WTI/WIC/2K17/82(G)] for financial support.
{"title":"Forecasting land use/cover changes and their influence on groundwater recharge in Chennai, India: Recommendations for sustainable urban development","authors":"Puthan Veettil Razi Sadath, Lakshmanan Elango, Mariappan Rinisha Kartheeshwari, Lingaiah Keerthan","doi":"10.1080/1573062x.2023.2258858","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2258858","url":null,"abstract":"ABSTRACTLand use/cover (LULC) changes significantly impact various environmental and social factors. In this study, we used a hybrid model that integrates Multi-Layer Perceptron-Markov Chain Analysis to forecast changes in LULC of Chennai city and its surrounding area until the year 2101. We also evaluated the impact of these changes on groundwater recharge potential zones (RPZ) and suggested policy recommendations for better urban planning. Our results indicate a rapid increase in built-up areas (238 km2/decade) and a corresponding decrease in agricultural lands (167 km2/decade), with a continuous reduction in the area occupied by the waterbodies (15 km2/decade). Furthermore, the estimated changes in RPZ demonstrate a decline in high recharge potential areas, emphasizing the need for effective policies to enhance groundwater recharge. The study provides insights into sustainable urban development. We recommended policies for promoting green urban spaces to mitigate LULC impacts on groundwater recharge.KEYWORDS: LULCurbanizationweighed overlay analysisrecharge potentialANNMLP-MCA AcknowledgementsWe thank the Department of Science and Technology, Government of India (Grand No: DST/TM/WTI/WIC/2K17/82(G)) for financial support. We also thank WRIS, India for providing LULC data.Disclosure statementNo potential conflict of interest was reported by the author(s).Author’s contributionLE: conceptualized the idea of this study. PVRS: collected, analyzed and interpreted the data. MRK: interpreted LULC changes. LK: interpreted RPZ changes. All authors were involved in writing and approval of the final manuscript.Availability of data and materialsAll data collected, generated, and analyzed in this study are available upon request per ethical guidelines and permission of the funding agency.Additional informationFundingThe authors thank the Department of Science and Technology, Government of India [Grand No: DST/TM/WTI/WIC/2K17/82(G)] for financial support.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-19DOI: 10.1080/1573062x.2023.2255168
Sovan Sankalp, Sanat Nalini Sahoo
ABSTRACTDetermination of total impervious area (TIA) or effective impervious area (EIA) is mandatory for hydrological modelling of water quantity and quality in urban areas. In this study, a multilayer deep learning model Convolutional Neural Network (CNN) is implemented for estimating TIA. A more realistic automated method is suggested to determine EIA by integrating the remote sensing data, the digital format of the drainage network, and a digital elevation model (DEM). A graphical user interface (GUI) called EIA estimator is developed for automatic creation of EIA maps. An effort is made to derive a relationship between TIA and EIA. Several power relationships are obtained for easily measurable TIA and hydraulically relevant EIA in urban catchments of India. These relationships would aid planners and decision-makers with quick initial estimates for surface water quantity and quality problems.KEYWORDS: TIAEIARSGISurbanimperviousness Disclosure statementThe authors declare that they don’t have any conflict of interest.Availability of data and materialPart of data may be available on request.Additional informationFundingThe authors would like to acknowledge the Science and Engineering Research Board (SERB), India for providing the financial support for this research program, project no. [ECR/2016/000057].
{"title":"An automated approach to establish relationship between total and effective impervious area for urban Indian catchments","authors":"Sovan Sankalp, Sanat Nalini Sahoo","doi":"10.1080/1573062x.2023.2255168","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2255168","url":null,"abstract":"ABSTRACTDetermination of total impervious area (TIA) or effective impervious area (EIA) is mandatory for hydrological modelling of water quantity and quality in urban areas. In this study, a multilayer deep learning model Convolutional Neural Network (CNN) is implemented for estimating TIA. A more realistic automated method is suggested to determine EIA by integrating the remote sensing data, the digital format of the drainage network, and a digital elevation model (DEM). A graphical user interface (GUI) called EIA estimator is developed for automatic creation of EIA maps. An effort is made to derive a relationship between TIA and EIA. Several power relationships are obtained for easily measurable TIA and hydraulically relevant EIA in urban catchments of India. These relationships would aid planners and decision-makers with quick initial estimates for surface water quantity and quality problems.KEYWORDS: TIAEIARSGISurbanimperviousness Disclosure statementThe authors declare that they don’t have any conflict of interest.Availability of data and materialPart of data may be available on request.Additional informationFundingThe authors would like to acknowledge the Science and Engineering Research Board (SERB), India for providing the financial support for this research program, project no. [ECR/2016/000057].","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-11DOI: 10.1080/1573062x.2023.2256722
Yahia Alwathaf, W. A. Abdel Kawy, Alhasan Ahmed Aljawzi, O. A. Eweys
Water security is crucial to mitigate human-induced and climate change-related impacts on water resources. Previous studies on Sana'a's domestic water supply have raised safety, administration, and scarcity issues. However, a comprehensive water security assessment has not yet been conducted. This study uses the proposed Integrated Urban Water Security Index (IUWSI) framework to assess Sana'a's urban water security using human and environmental factors Five distinct parameters have been used to calculate (IUWSI) as a decision-making tool to prioritize and distinguish indicators affecting the five dimensions of urban water security: water supply, sanitation and hygiene, water economy, ecosystems, and governance and society. The proposed framework for measuring (IUWSI) in Sana’a city has revealed a low level of water security, with an overall index value of 1.43. This disappointing result indicates water security issues like limited access to safe drinking water, poor sanitation, and high-water pollution. The IUWSI framework helps water-insecure cities improve water supply management through logical and evidence-based decision-making.
{"title":"Application of Integrated Urban Water Security Index (IUWSI) in Sana’a, Yemen (Case study)","authors":"Yahia Alwathaf, W. A. Abdel Kawy, Alhasan Ahmed Aljawzi, O. A. Eweys","doi":"10.1080/1573062x.2023.2256722","DOIUrl":"https://doi.org/10.1080/1573062x.2023.2256722","url":null,"abstract":"Water security is crucial to mitigate human-induced and climate change-related impacts on water resources. Previous studies on Sana'a's domestic water supply have raised safety, administration, and scarcity issues. However, a comprehensive water security assessment has not yet been conducted. This study uses the proposed Integrated Urban Water Security Index (IUWSI) framework to assess Sana'a's urban water security using human and environmental factors Five distinct parameters have been used to calculate (IUWSI) as a decision-making tool to prioritize and distinguish indicators affecting the five dimensions of urban water security: water supply, sanitation and hygiene, water economy, ecosystems, and governance and society. The proposed framework for measuring (IUWSI) in Sana’a city has revealed a low level of water security, with an overall index value of 1.43. This disappointing result indicates water security issues like limited access to safe drinking water, poor sanitation, and high-water pollution. The IUWSI framework helps water-insecure cities improve water supply management through logical and evidence-based decision-making.","PeriodicalId":49392,"journal":{"name":"Urban Water Journal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135980453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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