Water Security最新文献

Predictive mapping of harmful algal blooms with Sentinel-2 imagery and random forest modelling 利用Sentinel-2图像和随机森林模型预测有害藻华

IF 4.3

Water Security Pub Date : 2026-04-01 Epub Date: 2025-12-27 DOI: 10.1016/j.wasec.2025.100194

Carolina Acuña-Alonso , Diego Barba-Barragáns , Joaquín Martínez-Sánchez , Xana Álvarez

{"title":"Predictive mapping of harmful algal blooms with Sentinel-2 imagery and random forest modelling","authors":"Carolina Acuña-Alonso , Diego Barba-Barragáns , Joaquín Martínez-Sánchez , Xana Álvarez","doi":"10.1016/j.wasec.2025.100194","DOIUrl":"10.1016/j.wasec.2025.100194","url":null,"abstract":"<div><div>Climate change and anthropogenic nutrient enrichment are driving the proliferation of algal blooms worldwide, posing a significant threat to aquatic ecosystems, including urban reservoirs. As water security in these systems is critical, inadequate monitoring continues to contribute to water quality deterioration and the loss of vital ecosystem services. This study aims to develop early detection tools for harmful algal blooms using Sentinel-2 multispectral imagery, the Random Forest algorithm, and in situ data. Model performance was evaluated for Trophic State Index (TSI), Chlorophyll-a (Chl-a), and surface water temperature in urban reservoirs, with initial calibration and validation on the A Baxe reservoir, followed by external validation in As Forcadas (northwest Spain). Spectral indices – such as the Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Brightness Index (BI) – and specific bands were derived using Google Earth Engine (GEE). The developed models demonstrated high accuracy, with coefficients of determination (R<sup>2</sup>) of 0.97 for Chl-a, > 0.80 for TSI, and > 0.70 for temperature. The TSI model’s relevance is underscored by its integration of various physicochemical parameters (N<sub>total</sub>, P<sub>total</sub>, Secchi Disk, Chl-a), and the BI index showed strong performance in estimating temperature despite Sentinel-2′s lack of a thermal band. This study proposes transferable methodologies for any reservoir, delivering an effective tool for the early detection of harmful algal blooms in stagnant waters, and contributing significantly to improved water resource management and the protection of aquatic ecosystems.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"27 ","pages":"Article 100194"},"PeriodicalIF":4.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841501","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

Frost depth increase under a nuclear winter scenario projected to sever piped-water access in the Northern Hemisphere 在核冬天的情景下，霜冻深度的增加预计将切断北半球的管道供水

IF 4.3

Water Security Pub Date : 2026-04-01 Epub Date: 2025-12-09 DOI: 10.1016/j.wasec.2025.100193

Juan Esteban Lamilla Cuellar , Rachel Palm , David C. Denkenberger , Florian Ulrich Jehn

{"title":"Frost depth increase under a nuclear winter scenario projected to sever piped-water access in the Northern Hemisphere","authors":"Juan Esteban Lamilla Cuellar , Rachel Palm , David C. Denkenberger , Florian Ulrich Jehn","doi":"10.1016/j.wasec.2025.100193","DOIUrl":"10.1016/j.wasec.2025.100193","url":null,"abstract":"<div><div>The continuous functioning of the underground water supply networks is essential for many aspects of modern civilization. Therefore, it is essential to keep such critical infrastructure safe from disasters. However, existing risk assessment studies often assume relatively stable climate conditions. Abrupt sunlight reduction scenarios, such as those caused by a nuclear war, a large volcanic eruption, or an asteroid impact, could cool the planet by up to 10 °C and thus frost-damage water pipes. This study investigates such vulnerability of the global underground water supply network in urban areas, in a nuclear winter – one such abrupt climate shift resulting from a nuclear war. We use climate modeling data simulating a nuclear exchange between Russia and the United States of America, in combination with predictions of the network location and density derived from nighttime light and artificial impervious surface data. By considering an increase in maximum frost depth under nuclear winter conditions, we identify areas where such networks are most vulnerable to disruption, and predict the length of the potentially affected pipelines using population-size-based and street-network-length-based models. As estimated, a total of ∼ 5–9 million kilometers of this critical infrastructure in 92 countries is at risk of freezing, potentially impacting the primary water source of over 2 billion individuals. Our findings highlight the need to expand the scope of climate resilience assessments in water risk research to include a broader range of climate scenarios, including sudden cold shifts.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"27 ","pages":"Article 100193"},"PeriodicalIF":4.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145697940","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

Transforming collapsing arid river systems: Moving from deterministic approaches to complex adaptive governance 转变崩溃的干旱河流系统：从确定性方法到复杂的适应性治理

IF 4.3

Water Security Pub Date : 2025-12-01 Epub Date: 2025-10-31 DOI: 10.1016/j.wasec.2025.100192

Jaishri Srinivasan

引用次数: 0

Water security in the agriculture and cattle grazing activities: A systematic review 农业和畜牧业中的水安全：系统综述

IF 4.3

Water Security Pub Date : 2025-12-01 Epub Date: 2025-08-20 DOI: 10.1016/j.wasec.2025.100191

Fernando António Leal Pacheco , Teresa Cristina Tarlé Pissarra

{"title":"Water security in the agriculture and cattle grazing activities: A systematic review","authors":"Fernando António Leal Pacheco , Teresa Cristina Tarlé Pissarra","doi":"10.1016/j.wasec.2025.100191","DOIUrl":"10.1016/j.wasec.2025.100191","url":null,"abstract":"<div><div>This study reviewed water security issues related to agriculture and cattle grazing activities, based on the findings of 171 articles published in the past two decades, namely 23% before 2020 and 77% between 2020 and 2025. The reviewed studies represented contributions from all continents, with a larger share from Asian, European and American countries. The key results, (<em>a</em>) exposed supply–demand challenges related to increasing irrigation needs, allocation scales and regimes, and environmental flow insurance; (<em>b</em>) elected rainwater harvesting, drip irrigation and soil moisture sensors as prime water conservation measures, and conjunctive use of conventional and non-conventional water sources as strategic conservation pathway; (<em>c</em>) indicated the preservation of riparian forests and wetlands, coupled with agriculture and livestock management practices, as fundamental measures of surface water pollution control; (<em>d</em>) highlighted the need of coupling contamination risk programs with management initiatives and prioritization of action, to effectively protect groundwater resources; (<em>e</em>) brought attention to the need of optimizing the use of floodplain recession water as irrigation source in arid regions; (<em>f</em>) showed how governance is in the core of a water-secure river basin, especially if the principle of trust and engagement is broadly implemented at all institutional levels; (<em>g</em>) and finally, transported into the discussion the role of payments for water services as pathway to aid governance, bringing watersheds towards more resilient levels of water security. As whole, the current review shed light over key challenges of today’s water security in the rural environment recommending solutions to overcome them.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"26 ","pages":"Article 100191"},"PeriodicalIF":4.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711745","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

Impact of flooding on the social and mental health of older adults- A scoping review 洪水对老年人社会和心理健康的影响——范围综述

IF 4.3

Water Security Pub Date : 2025-08-01 Epub Date: 2025-04-01 DOI: 10.1016/j.wasec.2025.100190

Chen Song, Funda Atun, Justine I. Blanford, Carmen Anthonj

{"title":"Impact of flooding on the social and mental health of older adults- A scoping review","authors":"Chen Song, Funda Atun, Justine I. Blanford, Carmen Anthonj","doi":"10.1016/j.wasec.2025.100190","DOIUrl":"10.1016/j.wasec.2025.100190","url":null,"abstract":"<div><div>Flood disasters have a profound impact on the social and mental health of older adults. However, research on these effects remains limited, and a comprehensive understanding of their implications is lacking. This study addresses this gap through a scoping review of peer-reviewed literature, using the Disaster Pressure and Release model to analyze the vulnerabilities and risks older adults face during floods. Following PRISMA guidelines, we searched Web of Science, Scopus, and MEDLINE/PubMed in September 2022 and July 2024, identifying 6,492 studies. After screening and full-text review, 11 studies were included. The findings indicate that floods contribute to increased social isolation and limited social network support, and relatively fewer issues with a sense of place and belonging. Older adults also experience high levels of depression, anxiety, and PTSD, though sleep problems appear less common. With the low number of reviewed papers, findings highlight regional differences as significant gaps in current research. The study shows the need for better disaster preparedness strategies, stronger mental health support, and improved social help to mitigate the long-term effects of flooding on older adults. More research in different regions is important to create more effective policies and plans that meet the needs of older adults.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"25 ","pages":"Article 100190"},"PeriodicalIF":4.3,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738656","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

Water and food insecurity & quality of life for deaf Nigerians: A community-based cross sectional study 水和粮食不安全&生活质量为聋人尼日利亚：以社区为基础的横断面研究

Water Security Pub Date : 2025-04-01 Epub Date: 2025-03-06 DOI: 10.1016/j.wasec.2025.100188

Alina Engelman , Saminu Ismail , Jordan Fenlon , Emily Noschese , Lorne Farovitch

{"title":"Water and food insecurity & quality of life for deaf Nigerians: A community-based cross sectional study","authors":"Alina Engelman , Saminu Ismail , Jordan Fenlon , Emily Noschese , Lorne Farovitch","doi":"10.1016/j.wasec.2025.100188","DOIUrl":"10.1016/j.wasec.2025.100188","url":null,"abstract":"<div><div>Drought and flooding caused by climate change as well as regional and global conflicts mean that access to both water and food is becoming increasingly precarious worldwide, particularly in developing countries. Deaf and disabled people worldwide have historically struggled to access basic needs, including access to nutritious food, sanitation and clean, potable water. Access to clean water and food is a daily challenge for many Nigerians, particularly in the northern regions. Our first-of-its kind exploratory study of 150 deaf Nigerians reports findings from a cross-sectional survey involving deaf Nigerians about their access to these essential resources. Our study, led by a joint team of deaf American and deaf Nigerian scholars, sheds light on deaf Nigerians’ diverse experiences accessing food, sanitation and potable water. We applied two logistic regression models to our data with having enough food and access to clean water as separate outcomes. Findings indicate that quality of life with respect to physical health is associated both with having access to clean water and having enough to eat. We discuss these findings in the context of geopolitical and social hurdles that deaf Nigerians face, including a lack of educational and employment advantages.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"24 ","pages":"Article 100188"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552071","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

Wastewater treatment systems and terrorism 废水处理系统和恐怖主义

Water Security Pub Date : 2025-04-01 Epub Date: 2025-02-12 DOI: 10.1016/j.wasec.2025.100187

Gábor Szűcs , Dennis G. Barten , János Besenyő

引用次数: 0

The past, present, and future of Ghana’s WASH sector. An explorative analysis 加纳讲卫生运动的过去、现在和未来。探索性分析

Water Security Pub Date : 2024-12-01 Epub Date: 2024-11-17 DOI: 10.1016/j.wasec.2024.100185

Thelma Z. Abu , Meshack Achore , Mohammod Irfan , Ibrahim Musah , Tanko Yussif Azzika

引用次数: 0

Using managed aquifer recharge to address land subsidence: Insights from a global literature review 利用有管理的含水层补给解决土地沉降问题：全球文献综述的启示

Water Security Pub Date : 2024-12-01 Epub Date: 2024-10-17 DOI: 10.1016/j.wasec.2024.100184

Constantin Seidl , Declan Page , Sarah Ann Wheeler

{"title":"Using managed aquifer recharge to address land subsidence: Insights from a global literature review","authors":"Constantin Seidl , Declan Page , Sarah Ann Wheeler","doi":"10.1016/j.wasec.2024.100184","DOIUrl":"10.1016/j.wasec.2024.100184","url":null,"abstract":"<div><div>Managed aquifer recharge (MAR) – through mitigating groundwater over-extraction – has been used as a tool to mitigate land subsidence in many regions around the world. However, given that to date, MAR has not been used to its full potential as a water resource management tool, then subsequently MAR for land subsidence mitigation (MAR-LS) is also underutilized. This paper reviews the MAR and MAR-LS literature using three approaches. Firstly, we review a global case study database of 314 MAR schemes from 172 studies to examine whether non-trial MAR-LS schemes are different to other MAR schemes in technology, management, and effectiveness. To explore socio-economic and other influences on MAR-LS effectiveness, we complement this with a comparison of economic assessments of MAR and MAR-LS schemes to explore potential unique economic and financial characteristics and how they influence effectiveness. And finally, we undertake a detailed case study review of the effectiveness and issues with MAR-LS schemes in Shanghai, Las Vegas, and Mexico City, shedding light on aspects not captured by the previous two assessments. A range of relevant MAR insights and findings are provided to foster future successful MAR-LS implementation.</div></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"23 ","pages":"Article 100184"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445479","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

Land subsidence in the Mid-Atlantic United States: Creeping disaster threatens water, energy, and climate security 美国大西洋中部的土地沉降：不断蔓延的灾难威胁着水、能源和气候安全

Water Security Pub Date : 2024-12-01 Epub Date: 2024-10-04 DOI: 10.1016/j.wasec.2024.100183

Christopher A. Scott

引用次数: 0