HydroResearch最新文献_第2页

Relationships between hydrological connectivity and river-lake ecospace in urban-rural areas 城乡区域水文连通性与江湖生态空间的关系

HydroResearch Pub Date : 2025-01-01 DOI: 10.1016/j.hydres.2025.04.001

Jinyang Zhou , Huihui Yin , Yeling Liu , Baoshan Cui , Qing Wang

{"title":"Relationships between hydrological connectivity and river-lake ecospace in urban-rural areas","authors":"Jinyang Zhou , Huihui Yin , Yeling Liu , Baoshan Cui , Qing Wang","doi":"10.1016/j.hydres.2025.04.001","DOIUrl":"10.1016/j.hydres.2025.04.001","url":null,"abstract":"<div><div>Hydrological connectivity refers to a water-mediated transfer of matter, energy, and organisms in the hydrological cycle and plays a key role in shaping river-lake ecospace and their relevant functions. However, the river-lake ecospace is usually used to indicate static land units such as rivers, lakes, and riparian zones, which lack deep exploration of their relationships and connotations. As a functional space, the river-lake ecospace correlate with variations in hydrological connectivity in terms of structural and functional diversity along the unban-rural gradient. To better understand the relationship between hydrological connectivity and the river-lake ecospace, we first analyzed the characteristics and driving factors of hydrological connectivity in urban-rural areas and then summarized the distribution and functions of the river-lake ecospace. Based on these, we discussed the relationship between the variations in both of them in river-lake system from the aspects of structure, process, and function. Finally, we propose implications for regulating and optimizing the river-lake connectivity to expand the ecospace and enhance its functions.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 374-383"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869434","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}

引用次数: 0

Contamination of urban waterways: A mini-review of water pollution in the rivers of East Africa's major cities 城市水道污染：对东非主要城市河流水污染的简要回顾

HydroResearch Pub Date : 2025-01-01 DOI: 10.1016/j.hydres.2024.11.004

Meserecordias Wilfred Lema

{"title":"Contamination of urban waterways: A mini-review of water pollution in the rivers of East Africa's major cities","authors":"Meserecordias Wilfred Lema","doi":"10.1016/j.hydres.2024.11.004","DOIUrl":"10.1016/j.hydres.2024.11.004","url":null,"abstract":"<div><div>This study performs a mini-review, and provides sustainable solutions for water pollution challenges affecting major rivers flowing through urban areas in East Africa. Through a synthesis of 100 peer-reviewed publications between 2010 and 2023, the research examines deteriorating water quality in rivers; Tana, Nakivubo, Kafue, Ruaha, Ruvu and Mara from untreated municipal and industrial wastewater discharges from expanding cities. Results show that BOD, COD, nutrients, heavy metals and bacteria levels exceed national and international standards, degrading riverine environments and posing public health risks. Key constraints to effective pollution management are identified as overlapping governance responsibilities, outdated legal frameworks, lack of clear discharge standards, weak monitoring and compliance, and financing shortfalls. A suite of integrated solutions is proposed, emphasizing upgraded wastewater infrastructure, industrial effluent controls, and enabling policy reforms with strong multi-stakeholder coordination. The study aims to highlight urban river pollution challenges to guide evidence-based mitigation by East African water managers and policymakers.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 307-315"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154700","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}

引用次数: 0

Morphological changes in the offshore islands of Meghna estuary: Analysis of the erosion and accretion dynamics 梅克纳河口近海岛屿的形态变化：侵蚀和吸积动力学分析

HydroResearch Pub Date : 2025-01-01 DOI: 10.1016/j.hydres.2024.12.006

Fariha Khatun, Ovi Ranjan Saha, Naila Matin

{"title":"Morphological changes in the offshore islands of Meghna estuary: Analysis of the erosion and accretion dynamics","authors":"Fariha Khatun, Ovi Ranjan Saha, Naila Matin","doi":"10.1016/j.hydres.2024.12.006","DOIUrl":"10.1016/j.hydres.2024.12.006","url":null,"abstract":"<div><div>This study examines the morphological changes of ten offshore islands in the Meghna estuary of Bangladesh over thirty years, from 1989 to 2019, utilizing remote sensing and Geographic Information System (GIS) techniques. The study area, characterized by ever-changing hydrodynamic conditions due to the substantial discharge from the Ganges, Jamuna, and Meghna rivers, experiences significant sediment deposition and erosion. Our findings highlight a complex interplay between erosion and accretion processes across the estuary. Despite 1100 km<sup>2</sup> of land being eroded, accretion processes were slightly more predominant, totaling 1210 km<sup>2</sup>, resulting in a net increase of 110 km<sup>2</sup> in land area. Notably, islands like Swarna Dwip and Moulovi Char exhibited substantial land gains, while Manpura and the eastern part of Bhola experienced significant reductions, underlining the urgent need for targeted erosion mitigation strategies. The study also identifies significant sediment deposition near tidal confluence zones around Sandwip, Jahazer Char, and Urir Char, suggesting that these are key areas for conservation efforts. The research contributes valuable insights into the geomorphological dynamics within the Meghna estuary. It offers foundational knowledge for informed coastal management and sustainable development planning in one of the world's most dynamically evolving coastal environments.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 294-306"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154669","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}

引用次数: 0

Hydrogeochemical characterization and human health risks associated with groundwater nitrate concentrations in the Saiss basin, Morocco 摩洛哥Saiss盆地与地下水硝酸盐浓度有关的水文地球化学特征和人类健康风险

HydroResearch Pub Date : 2025-01-01 DOI: 10.1016/j.hydres.2024.11.006

Abdelhakim Lahjouj , Abdellah El Hmaidi , Hafid Achtak , Chafik Nakhcha , Karima Bouhafa

{"title":"Hydrogeochemical characterization and human health risks associated with groundwater nitrate concentrations in the Saiss basin, Morocco","authors":"Abdelhakim Lahjouj , Abdellah El Hmaidi , Hafid Achtak , Chafik Nakhcha , Karima Bouhafa","doi":"10.1016/j.hydres.2024.11.006","DOIUrl":"10.1016/j.hydres.2024.11.006","url":null,"abstract":"<div><div>Groundwater has been facing not only prolonged climate change-induced groundwater shortage but also severe deterioration of groundwater quality from natural and/or anthropogenic sources. This study aims to determine the hydrogeochemical processes controlling groundwater chemistry in the Saiss basin, Morocco, and to assess seasonal changes in groundwater quality using the entropy-weighted water quality index (EWQI). In addition, human health risks associated with groundwater nitrate (NO<sub>3</sub><sup>−</sup>) contamination/pollution were investigated using the hazard quotient (HQ). Groundwater chemistry in the Saiss basin was mainly controlled by mineral dissolution/precipitation and direct cation exchange, with slight seasonal variations in the saturation indices (SIs). The EWQI suggested slight groundwater quality deterioration in the dry season due to increased NO<sub>3</sub><sup>−</sup> concentrations. In fact, children were over two times exposed to non-carcinogenic issues associated with groundwater NO<sub>3</sub><sup>−</sup> concentrations when compared with adults. The current study provides further insights into the hydrogeochemical characteristics of groundwater to ensure safe regional water supplies.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 223-236"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143154656","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}

引用次数: 0

A multi-method and multi-duration trend analysis of temperature and precipitation in Istanbul, Turkey, by using meteorological records, MERRA-2 reanalysis, and IMERG estimations 利用气象记录、MERRA-2 再分析和 IMERG 估计数据，对土耳其伊斯坦布尔的气温和降水进行多方法和多时段趋势分析

HydroResearch Pub Date : 2024-11-19 DOI: 10.1016/j.hydres.2024.11.005

Sina Sam, Mehmet Özger

{"title":"A multi-method and multi-duration trend analysis of temperature and precipitation in Istanbul, Turkey, by using meteorological records, MERRA-2 reanalysis, and IMERG estimations","authors":"Sina Sam, Mehmet Özger","doi":"10.1016/j.hydres.2024.11.005","DOIUrl":"10.1016/j.hydres.2024.11.005","url":null,"abstract":"<div><div>In this study, temperature and precipitation trends in Istanbul were analyzed using data from a ground-based station for the 1960–2019 interval, Integrated Multi-SatellitE Retrievals for Global Precipitation Measurement (GPM IMERG) for 2000–2019, and Modern-Era Retrospective Analysis for Research and Applications (MERRA-2) temperature reanalysis for 1980–2019. Single-duration analysis revealed significant increasing temperature trends with minor downward and major upward tendencies in precipitation. Multi-duration analysis resulted with dominant decreasing and increasing temperature trends, respectively, in 1980–1999 and 2000–2019, alongside decreasing precipitation trends in 1980–1999 winter and 2000–2019 spring, which were undetected in the single-duration analysis. As a novel attempt, trends based on MERRA-2 and IMERG data were compared with ground-based records in Istanbul and revealed better compatibility in MERRA-2, especially in 2000–2019 compared to IMERG data. By comparing various statistical methods and data sources, this study offers valuable insights into hydrometeorological trend analysis and aids transition from conventional to novel data sources.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 209-222"},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701658","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}

引用次数: 0

Application of electrical resistivity tomography for groundwater evaluation in Yirgacheffe Town and its environs, Main Ethiopian Rift 应用电阻率层析成像技术评估埃塞俄比亚大裂谷地区伊尔加切夫镇及其周边地区的地下水

HydroResearch Pub Date : 2024-11-08 DOI: 10.1016/j.hydres.2024.11.003

Tariku Takele, Musa Husein, Dechasa Diriba, Getnet Assefa

引用次数: 0

Soil archaea response to the water table drawdown in freshwater wetlands in the Yellow River Estuary 黄河口淡水湿地土壤古细菌对地下水位下降的响应

HydroResearch Pub Date : 2024-11-03 DOI: 10.1016/j.hydres.2024.11.001

Qingqing Zhao, Yujie Huang, Wen Zhang, Fanyong Song, Tianyuan Li, Leilei Wang

引用次数: 0

Assessing watershed vulnerability to erosion and sedimentation: Integrating DEM and LULC data in Guyana's diverse landscapes 评估流域易受侵蚀和沉积影响的程度：整合圭亚那各种地貌的 DEM 和 LULC 数据

HydroResearch Pub Date : 2024-11-03 DOI: 10.1016/j.hydres.2024.11.002

Josephine Kawa Maximus

{"title":"Assessing watershed vulnerability to erosion and sedimentation: Integrating DEM and LULC data in Guyana's diverse landscapes","authors":"Josephine Kawa Maximus","doi":"10.1016/j.hydres.2024.11.002","DOIUrl":"10.1016/j.hydres.2024.11.002","url":null,"abstract":"<div><div>This study assesses watershed vulnerability to erosion and sedimentation in Guyana using Digital Elevation Model (DEM) and Land Use/Land Cover (LULC) classification. It aims to assess erosion risk by examining rainfall erosivity, soil types, and spatial variability. The integration of DEM-derived slope data with LULC and rainfall erosivity shows a strong correlation between high rainfall (20,809.02–31,262.35 mm) and erosivity (21,433.29–32,200.22 MJ mm ha<sup>−1</sup> h<sup>−1</sup> yr<sup>−1</sup>), indicating increased erosion potential, particularly in southwestern regions. Soil analysis reveals Plinthic Acrisols, with high clay content, are more prone to erosion, whereas Orthic Ferralsols are less vulnerable. Slope analysis suggests flat terrain (89.16 %) has low erosion risk, but steeper slopes require interventions. Conservation strategies like reforestation, sustainable agriculture, contour plowing, and terracing are recommended to reduce erosion impacts. This integrated assessment provides insights for prioritizing soil conservation and adaptive management to address erosion risks in Guyana.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 178-193"},"PeriodicalIF":0.0,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701657","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}

引用次数: 0

Riverine flood hazard map prediction by neural networks 利用神经网络预测河流洪水灾害图

HydroResearch Pub Date : 2024-10-28 DOI: 10.1016/j.hydres.2024.10.003

Zeda Yin, Arturo S. Leon

{"title":"Riverine flood hazard map prediction by neural networks","authors":"Zeda Yin, Arturo S. Leon","doi":"10.1016/j.hydres.2024.10.003","DOIUrl":"10.1016/j.hydres.2024.10.003","url":null,"abstract":"<div><div>Severe flooding can pose significant risks to human lives, result in substantial economic losses, and contribute to environmental problems such as soil salinization. An accurate early flood prediction system can effectively minimize these losses. Numerical method was the dominant approach for predicting flood inundation maps in the past decades. However, high-fidelity two-dimensional numerical methods are typically time-consuming. Machine learning methods have gained popularity in recent years, but generating a flood map directly with a small sample of boundary conditions remains challenging and largely unexplored. In this paper, we have developed a machine learning framework capable of directly predicting the maximum flood inundation map from boundary conditions. In our model, time-series boundary conditions are embedded into a higher-dimensional shape and then processed by a transformer encoder. The feature maps, post-processed by the transformer encoder, will be coupled with geophysical information such as a digital elevation map and Manning's coefficient map before being passed to the U-Net structure to obtain the final results. Our proposed model demonstrated notably high accuracy when tested with historical hurricane events. The mean absolute error of our proposed method on all test sets is 0.00717 ft., and the root mean squared error is 0.03974 ft. Furthermore, we conducted parametric studies on the model architecture and observed that they are not as sensitive as input features. Lastly, we provided explanations on why some certain geophysical features are necessary to accurately predict flood inundation maps in this paper.</div></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"8 ","pages":"Pages 139-151"},"PeriodicalIF":0.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142577849","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}

引用次数: 0

Flood susceptibility analysis to sustainable development using MCDA and support vector machine models by GIS in the selected area of the Teesta River floodplain, Bangladesh 利用 MCDA 和支持向量机模型，通过地理信息系统对孟加拉国 Teesta 河洪泛区选定地区的洪水易发性进行分析，以促进可持续发展

HydroResearch Pub Date : 2024-10-28 DOI: 10.1016/j.hydres.2024.10.004

Shapla Akhter , Md. Mostafizur Rahman , Md. Moniruzzaman Monir

引用次数: 0