HydroResearch最新文献

{"title":"Potentialities and development of groundwater resources applying machine learning models in the extended section of Manbhum-Singhbhum Plateau, India","authors":"Arijit Ghosh,&nbsp;Biswajit Bera","doi":"10.1016/j.hydres.2023.11.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.11.002","url":null,"abstract":"<div><p>Groundwater is essential for living earth including ecosystem functioning and development of society worldwide. In recent times, demand and pressure on groundwater resources are progressively increasing over time. Thus, the assessment and management of groundwater resources particularly in semi-arid region are very much crucial. Therefore, the principal objective of the present study is to categorize the groundwater potential areas using advanced machine learning (ML) approaches. In this study, random forest (RF), support vector machine (SVM), and extreme gradient boosting (XGBoost) algorithms have been applied. The accuracy of each model has been estimated using the receiver operating characteristics (ROC) curve. About 60.63%, 65.39%, and 53.75% of areas come under moderate to very low groundwater potential. XGBoost indicates the highest predictive capacity (AUC 0.97). The innovation of this study lies in the combination of hydrological, topographical and geological datasets into machine learning platform. This research will support water resource management worldwide.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"7 ","pages":"Pages 1-14"},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S258975782300032X/pdfft?md5=d1eb7fa7eb87a5a54b53400f9ff4c01d&pid=1-s2.0-S258975782300032X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138474841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of bivariate approaches for flood susceptibility mapping: a district level study in Eastern India","authors":"Madhurima Dutta ,&nbsp;Sunil Saha ,&nbsp;Nur Islam Saikh ,&nbsp;Debabrata Sarkar ,&nbsp;Prolay Mondal","doi":"10.1016/j.hydres.2023.02.004","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.02.004","url":null,"abstract":"<div><p>The main objective of this present study is to prepare flood susceptibility mapping using bivariate approaches considering parameters such as rainfall, geomorphology, geology, soil, elevation, ground slope, curvature of the land, flow directions, stream density, distance from road, distance from river, land use land cover, topographic wetness index, normalized differentiate vegetation index and water index. Bivariate methods like Shannon's Entropy Index (SEI) and Weight of Evidence (WofE-IV) models have been used in conjunction with remote sensing and geographical information system and it was found that 17.77% (SEI) and 11.20% (WofE-IV) area of the district categorized as highly susceptible to flood especially found in the adjoining area of Tangon, Punarbhaba, and Atreyee rivers. Around 26–35% of the total area is safe from flood especially located in the Tapan and Banshihari block. The area under curve values (SEI = 0.954, WofE-IV = 0.913) shows that both models are performing well for flood susceptibility mapping.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 108-121"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the impacts of climate variabilities and land use change on hydrological responses of Awash River basin, Ethiopia","authors":"Addisalem Bitew Mitiku,&nbsp;Gebreyohannes Abrha Meresa,&nbsp;Tewodros Mulu,&nbsp;Abel Tadesse Woldemichael","doi":"10.1016/j.hydres.2022.12.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2022.12.002","url":null,"abstract":"<div><p>Environment and climate changes have been posing pressure on the quality and quantity of water resources. The research examined the hydrological response of upper Awash River basin under the influences of environmental and climate changes. The climate change results up to 77.5% and 100.5% increament in annual and wet season monthly river flow, respectively when using projected climate data of RCP4.5. Whereas, the land use change alterss river flow in a one digit percentile increment/ decrement. It was observed that effects of both climate and land use changes will likely to increase the river flow and possibly cause flooding in the upper Awash River basin. The land use change impact can be alleviated by implementing appropriate land use management practices. The climate change mitigation needs long term process; as a result climate change adaptation mechanisms are recommended for the short term while employing climate mitigation options in the long run.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 16-28"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49879466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum regarding missing Declaration of Competing Interest statements in previously published articles","authors":"","doi":"10.1016/j.hydres.2023.03.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.03.003","url":null,"abstract":"","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Page 293"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757823000112/pdfft?md5=f256a07cbb4527a9a58ef3f53b7d9519&pid=1-s2.0-S2589757823000112-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109127442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The removal of ciprofloxacin from synthetic wastewater in constructed wetland","authors":"Petro Karungamye ,&nbsp;Anita Rugaika ,&nbsp;Kelvin Mtei ,&nbsp;Revocatus Machunda","doi":"10.1016/j.hydres.2023.04.001","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.04.001","url":null,"abstract":"<div><p>Considering the health effects of antibiotics in the environment, effective monitoring and treatment technologies are needed to mitigate social and environmental impacts. The present study was carried out to investigate the efficiency of the constructed wetland (CW) on the removal of Ciprofloxacin (CIP) from aqueous samples. Experiments were conducted in pilot scale CWs planted with single plants of <em>Cyperus alternifolius</em>, <em>Canna indica</em> and one planted with both plant species. Analysis of CIP concentrations in the influent and effluent samples was done using Cary 60 UV–Vis spectrophotometer, while physical-chemical parameters were monitored for the influent and effluent samples. The removal efficiency of physico-chemical parameters was ˃70% for Nitrate, ˃60% for Phosphate, ˃70% for BOD and ˃77% for COD. The maximum removal of CIP (77.1%) was observed in CW planted with <em>Cyperus alternifolius</em> during a 7 days hydraulic retention time (HRT). The results of this study show superior performance of <em>Cyperus alternifolius</em> than <em>Canna indica</em>. There was no significance difference (<em>p</em> &gt; 0.05) produced by mixing the two plants in a CW. However, mixing of plants especially ornamental plants in CWs brings good visual impression of the systems while treating the wastewater. This study demonstrate that CW can remove antibiotics from wastewater. The best performance depends on best selection and best combination of the plants.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 138-146"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Removal of arsenic in a sand filter coupled with zero valent iron","authors":"Daniel Edward ,&nbsp;Petro Karungamye ,&nbsp;Grite Nelson ,&nbsp;Juma Selemani ,&nbsp;Karoli N. Njau","doi":"10.1016/j.hydres.2023.06.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.06.002","url":null,"abstract":"<div><p>Arsenic (As) in wastewater has negative effects on the environment and human health, hence As containing wastes must be handled properly. Given the accessibility of metallic iron, studies investigating into the potential application of zerovalent iron in the removal of arsenic are promising. In this study, the performance of sand filter blended with several kinds of zero valent iron (Fe⁰), such as iron wool, iron fillings, and iron nails, were compared. These materials were combined in a sand filter column, and the efficiency was calculated using the As concentrations in the influent and effluent samples. Experiments were carried out in order to compare performance as a function of Fe⁰ dose and contact time. The outcome of this investigation showed that sand filter containing iron wool had a better removal efficiency of arsenic removal than iron filings and iron nails. The results in all columns showed that as dosage was increased, removal efficiency of arsenic increased significantly. In case of contact time the results revealed that arsenic can effectively be removed from water in the first 48 h. The early adsorption response is quick in all columns, but get slower as time goes on. The highest removal efficiency was 99.6% and the lowest removal efficiency was 82.7%.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 228-234"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrochemistry and assessment of heavy metals groundwater contamination in an industrialized city of sub-Saharan Africa (Douala, Cameroon). Implication on human health","authors":"S. Ngo Boum-Nkot ,&nbsp;B. Nlend ,&nbsp;D. Komba ,&nbsp;G.R. Nkoue Ndondo ,&nbsp;M. Bello ,&nbsp;E.J. Fongoh ,&nbsp;M.-J. Ntamak-Nida ,&nbsp;J. Etame","doi":"10.1016/j.hydres.2023.01.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.01.003","url":null,"abstract":"<div><p>Douala is one of the largest cities in sub-Saharan Africa where 80% of the population relies on groundwater without any control of their quality. In this context, this study evaluates the groundwater quality and the implications for human health. Water samples, including hand dugs wells, spring waters and borehole were collected. pH values are out of the WHO limit, with too much acidity for human consumption. Three water types are identified: Na–Cl (76.2%), Ca–Cl (14.3%) and Ca-Mg-Cl (9.5%) indicating significant anthropogenic fingerprint. Water Quality Index shows that 90.5% of the samples have “poor” to “unsuitable” quality for drinking purposes. Heavy metal Pollution Index and Heavy Metal Evaluation Index highlight that the groundwater are “lightly” to “moderately” polluted. Human Health Risk tool shows that heavy metal poses a non-carcinogenic risk by ingestion of water for child. These results highlight the necessity of groundwater monitoring to ensure a sustainable water supply.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 52-64"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate change impact on water availability in the Himalaya: Insights from Sunkoshi River basin, Nepal","authors":"Raghu Nath Prajapati ,&nbsp;Nurazim Ibrahim ,&nbsp;Bhesh Raj Thapa","doi":"10.1016/j.hydres.2023.10.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.10.002","url":null,"abstract":"<div><p>Changing streamflow is one of the most visible consequences of climate change. In this study, the Soil and Water Assessment Tool (SWAT) model was used to investigate the significant effects of climate change on streamflow in a Himalayan River. We incorporated information from several Global Climate Models (GCM), considering two climate scenarios: SSP 2.45 and SSP 5.85, which are part of Shared Socioeconomic Pathways (SSPs) for the future periods of 2022–2030 and 2031–2050. Substantial patterns in temperature and rainfall changes were identified using ensemble modeling. Under both SSPs 2.45 and 5.85, the results indicated a rising trend in temperatures from January to June, a decline from June to September, and a marginal increase from October to December. Additionally, annual rainfall, real evapotranspiration, and river flow are anticipated to rise by 17.67–21.79%, up to 0.93%, and 23–53%, respectively in the upper region of the study basin. Conversely, across the two future periods and scenarios, the lower region is depicted to have a decline in rainfall of 20.84–36.34%, evapotranspiration of up to 4.35%, and river flow of 38–65%. These findings will be invaluable for the design and construction of climate-resilient water resources related projects in the Himalayan regions, such as Nepal.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 279-292"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating groundwater potential in northeastern basement complexes: A Pulka case study using geospatial and geo-electrical techniques","authors":"Rowland Adewumi ,&nbsp;Okechukwu Agbasi ,&nbsp;Azeez Mayowa","doi":"10.1016/j.hydres.2023.02.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.02.003","url":null,"abstract":"<div><p>Groundwater is a crucial resource for communities and plays a significant role in the economy, especially in regions where surface water sources are limited or unreliable. Nigerian Northeastern basement complexes are unique geologic formations with specific hydrological characteristics that impact groundwater availability and quality. However, there is a lack of comprehensive information on groundwater potential in these areas, hindering effective resource management. To address this gap, this study focuses on the application of geospatial and electrical techniques to map and assess groundwater potential in Pulka, a northeastern basement complex in Nigeria. This research used geospatial methodology to delineate groundwater-prospective areas in Pulka, Northern Nigeria, with the aid of a VES technique that was integrated with the Schlumberger electrode configuration, the Shuttle Radar Topography Mission (SRTM), which were used as input datasets. Lineament and drainage density, lithology and slope, land use and land cover, and thematic maps were created as GIS input rasters. The value estimates were allotted based on a pair-wise examination of elements that appeared to be important in groundwater accumulation, retention, and transportation. The Analytical Hierarchy Process (AHP) was used in GIS software to incorporate five maps of components impacting the suitability of groundwater and movement using weighted layering. The hydraulic conductivity and longitudinal conductance of Pulka are greatest towards the west, with maximum values of 0.0665 m/day and 1.75 S, respectively. Transverse resistance and transmissivity are greatest in the eastern section of Pulka, with maximum values of 48.29 m2/day and 9000 m, respectively. Based on our research using SRTM, the most important elements for groundwater potential were soil type, which represented 43%; lineament density, which represented 33%; slope, with 13%; drainage density, with 7%; and land use and land cover, which accounted for the least (around 4% of overall contributions). Pulka has enormous groundwater development potential for sustainable and profitable extractions, according to analysis based on geospatial and geo-electrical techniques.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 73-88"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wetlands ecological security assessment in lower reaches of Taoerhe river connected with Nenjiang river using modified PSR model","authors":"Yanhong Zhang ,&nbsp;Peng Zang ,&nbsp;Huali Guo ,&nbsp;Guodong Yang","doi":"10.1016/j.hydres.2022.12.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2022.12.003","url":null,"abstract":"<div><p>Over the past two decades, with the implementation of a series of ecological restoration projects and the comprehensive improvement projects of agriculture, most of the ecological environments in Western area of Northeast region have been significantly improved. Therefore nearly all the wetlands have been significantly improved from the perspective of landscape and vegetation cover. In particular, China has just promulgated a Wetland protection law to further promote the concept of wetland protection into society. How safe the wetlands will be after the changes is a priority. The objective of this paper is to construct an improved comprehensive evaluation model to evaluate the wetland safety situation based on several types of data. In this paper, a typical wetland area situated in the Momoge National Protected Area is selected, based on pressure-state-response (PSR) model and the mathematical method of catastrophe progression theory, geographical information system (GIS) approach is involved to improve the model parameters, the ecological security situation within the study area is evaluated from 2000 to 2020. The results show: (i) the ecological security in study area varied nonlinearly, and has been turning worse from 2000 to 2009, while during 2009 to 2020 has been turning better; (ii) the ecological security levels in Momoge wetlands region were in moderate and primary warning during the past two decades, with higher value of ecological security comprehensive index in the middle region and lower value in the east and west region in the area; (iii) the area with lower value of eco-security index is corresponded with the distribution of settlements and river valleys where the the intensity of Land-Use and Land-Cover Change (LUCC) is much wider and deeper than the other area. From above, it is clearly that even within national protected areas, wetlands are mostly at a moderate ecological level and unevenly distributed in study area. Influenced by human factors, wetlands are at a lower security level. From that, wetlands protection only is in the initial stage, and wetlands protection and restoration still has a long way to go.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 156-165"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}