Applied Water Science最新文献

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Geospatial analysis and AHP for flood risk mapping in Quetta, Pakistan: a tool for disaster management and mitigation 绘制巴基斯坦奎达洪水风险图的地理空间分析和 AHP:灾害管理和减灾工具
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-15 DOI: 10.1007/s13201-024-02293-1
Niamat Ullah, Aqil Tariq, Said Qasim, Sanaullah Panezai, Md. Galal Uddin, M. Abdullah-Al-Wadud, Sajid Ullah
{"title":"Geospatial analysis and AHP for flood risk mapping in Quetta, Pakistan: a tool for disaster management and mitigation","authors":"Niamat Ullah,&nbsp;Aqil Tariq,&nbsp;Said Qasim,&nbsp;Sanaullah Panezai,&nbsp;Md. Galal Uddin,&nbsp;M. Abdullah-Al-Wadud,&nbsp;Sajid Ullah","doi":"10.1007/s13201-024-02293-1","DOIUrl":"10.1007/s13201-024-02293-1","url":null,"abstract":"<div><p>The 2022 flood events in Quetta, Pakistan, caused severe damage to the economy, properties, and lives. Therefore, flood risk mapping to identify flood-prone areas is essential for planners and decision-makers to take critical protective measures to control the effects of flooding. This study focuses on mapping flood-prone regions in the Quetta district of Pakistan using an analytical hierarchy process (AHP) and a geographic information system (GIS). The factors influencing flood used in the present study were topographic witness index (TWI), elevation, slope, land use, land cover, precipitation, stream distance, drainage density, and soil type. Weights and ranks were allocated separately to all factors through AHP and were interpreted in a GIS environment. The produced flood hazard model of the study area depicted four zones. These zones ranged from low (19.49%), moderate (43.34%), high (28.30%), to very high (8.87%). The model was further validated through previous flood events in the study area. Around 90% of flood hazard events in the past took place mainly in the produced model's very high and high zones, which is why the current model is reliable. Finally, integrating geospatial approaches with AHP in flood hazard mapping is a quick, reliable, and affordable method that may be utilized in the area.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 11","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02293-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reservoir-based flood forecasting and warning: deep learning versus machine learning 基于水库的洪水预报和预警:深度学习与机器学习
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-15 DOI: 10.1007/s13201-024-02298-w
Sooyeon Yi, Jaeeung Yi
{"title":"Reservoir-based flood forecasting and warning: deep learning versus machine learning","authors":"Sooyeon Yi,&nbsp;Jaeeung Yi","doi":"10.1007/s13201-024-02298-w","DOIUrl":"10.1007/s13201-024-02298-w","url":null,"abstract":"<div><p>In response to increasing flood risks driven by the climate crisis, urban areas require advanced forecasting and informed decision-making to support sustainable development. This study seeks to improve the reliability of reservoir-based flood forecasting and ensure adequate lead time for effective response measures. The main objectives are to predict hourly downstream flood discharge at a reference point, compare discharge predictions from a single reservoir with a four-hour lead time against those from three reservoirs with a seven-hour lead time, and evaluate the accuracy of data-driven approaches. The study takes place in the Han River Basin, located in Seoul, South Korea. Approaches include two non-deep learning (NDL) (random forest (RF), support vector regression (SVR)) and two deep learning (DL) (long short-term memory (LSTM), gated recurrent unit (GRU)). Scenario 1 incorporates data from three reservoirs, while Scenario 2 focuses solely on Paldang reservoir. Results show that RF performed 4.03% (in <i>R</i><sup>2</sup>) better than SVR, while GRU performed 4.69% (in <i>R</i><sup>2</sup>) better than LSTM in Scenario 1. In Scenario 2, none of the models showed any outstanding performance. Based on these findings, we propose a two-step reservoir-based approach: Initial predictions should utilize models for three upstream reservoirs with long lead time, while closer to the event, the model should focus on a single reservoir with more accurate prediction. This work stands as a significant contribution, making accurate and well-timed predictions for the local administrations to issue flood warnings and execute evacuations to mitigate flood damage and casualties in urban areas.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 11","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02298-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a water resources utilization model and optimization of the patterns of rice genotypes with system dynamics approach 利用系统动力学方法开发水资源利用模型和优化水稻基因型模式
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-14 DOI: 10.1007/s13201-024-02295-z
Meysam Motahari, Abbas Sotoodehnia, Bijan Nazari, Mohamadreza Yazdani
{"title":"Development of a water resources utilization model and optimization of the patterns of rice genotypes with system dynamics approach","authors":"Meysam Motahari,&nbsp;Abbas Sotoodehnia,&nbsp;Bijan Nazari,&nbsp;Mohamadreza Yazdani","doi":"10.1007/s13201-024-02295-z","DOIUrl":"10.1007/s13201-024-02295-z","url":null,"abstract":"<div><p>The system dynamics approach was conducted to optimize genotype patterns in various climatic and water availability scenarios, to address the water productivity improvement of the Sefidrood irrigation network. The studied cropping pattern scenarios were SD1 (the continuation of current trends), SD2 (the reduction in the cultivated area), SD3 (replacing modified crops on an annual basis), and SD4 (increasing the annual cultivated area of Hashemi type rice). Moreover, the impacts of irrigation efficiency improvements and water resources management strategies on the physical and economic water productivity indices were studied. The results indicated that the SD3 scenario has the most positive impact on water productivity with 0.45 kg/m<sup>3</sup> increases. However, a questionnaire survey revealed that this scenario that belongs to the increase in the modified genotype area cannot be recommended due to cooking quality and low prices. The Hashemi genotype was the favorite rice among farmers and experts. Also, analyzing the irrigation efficiency improvement scenario showed that this strategy has a limited impact on the physical and economic water productivity. Increasing the capacity of local rainwater storage pools, Ab-bandans, and increasing the drainage water reuse had the highest water productivity in the condition of river water reduction and uncertain water availability.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 11","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02295-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142431064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of biocidal efficacy of zinc oxide-zeolite nanocomposites as a novel water disinfectant against commercial disinfectants used in water purification 评估氧化锌-沸石纳米复合材料作为新型水消毒剂对用于水净化的商用消毒剂的杀菌效果
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-10 DOI: 10.1007/s13201-024-02266-4
Manar Bahaa El Din Mohamed, Fatma I. Abo El Ela, Rehab Mahmoud, Ahmed A. Farghali, Sarah I. Othman, Ahmed A. Allam, Sahar Abdel Aziz Abdel Aleem
{"title":"Assessment of biocidal efficacy of zinc oxide-zeolite nanocomposites as a novel water disinfectant against commercial disinfectants used in water purification","authors":"Manar Bahaa El Din Mohamed,&nbsp;Fatma I. Abo El Ela,&nbsp;Rehab Mahmoud,&nbsp;Ahmed A. Farghali,&nbsp;Sarah I. Othman,&nbsp;Ahmed A. Allam,&nbsp;Sahar Abdel Aziz Abdel Aleem","doi":"10.1007/s13201-024-02266-4","DOIUrl":"10.1007/s13201-024-02266-4","url":null,"abstract":"<div><p>Water microbial contamination is a serious issue that poses a risk to both animal and human health. One hundred and twenty water were samples collected from main water source and drinkers from a poultry farm. Different bacterial pathogens were isolated from water sources. <i>Escherichia </i>(<i>E</i>.)<i> coli</i>, <i>Pseudomonas </i>(<i>P</i>.)<i> aureoginosa</i>, (<i>Salmonella</i>) <i>Salmonella (s)</i>. Typhimurim, <i>Aeromonas </i>(<i>A</i>.)<i> hydrophila</i> at different percentages. Variable degree of bacterial resistance to some commercial disinfectants commonly used to disinfect water system (iodine, terminator and H<sub>2</sub>O<sub>2</sub>). Nanoparticles were used to control bacteria in water. About the safety investigation for the prepared nanomaterials, the work results demonstrated that zinc oxide (ZnO) nanoparticles (NPs) exhibit the highest safety profile among the manufactured materials. The median fatal dose (LD<sub>50</sub>) for ZnO NPs was determined to be 3709 mg/kg body weight. In comparison, the LD<sub>50</sub> values for zeolites and nanocomposites were 3251 mg/kg and 2658 mg/kg, respectively. Therapeutic dosages were estimated based on the LD<sub>50</sub>. Zeolite NPs, ZnO NPs and ZnO/zeolite NPs showing promising results in control of those bacteria. It was concluded that the escalating resistance of bacteria to disinfectants have led to a need to find alternative such as nanoparticles that proved promising results in control of pathogens, particularly it showed a safe effect on laboratory animals.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 11","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02266-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142397966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clays-based geopolymers: a sustainable application as adsorbent of cytostatic drugs for water purification 粘土基土工聚合物:作为细胞抑制药物吸附剂在水净化中的可持续应用
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-10 DOI: 10.1007/s13201-024-02273-5
Assia Ben Amor, Marina Arenas, Julia Martín, Abdelkader Ouakouak, Juan Luis Santos, Irene Aparicio, Esteban Alonso, Noureddine Hamdi
{"title":"Clays-based geopolymers: a sustainable application as adsorbent of cytostatic drugs for water purification","authors":"Assia Ben Amor,&nbsp;Marina Arenas,&nbsp;Julia Martín,&nbsp;Abdelkader Ouakouak,&nbsp;Juan Luis Santos,&nbsp;Irene Aparicio,&nbsp;Esteban Alonso,&nbsp;Noureddine Hamdi","doi":"10.1007/s13201-024-02273-5","DOIUrl":"10.1007/s13201-024-02273-5","url":null,"abstract":"<div><p>The administration of cytostatic drugs in chemotherapy is steadily increasing, triggering thus a risk to the environment. Identifying powerful ways to effectively remove these hazardous pollutants from hospital and effluent wastewater before they discharge into the aquatic environment remains a critical and challenging task. Adsorption is among the most effective ways to treat contaminated water due to the wide availability and selectivity of the adsorbents besides the simplicity and the low start-up costs of the technique. In this work, a geopolymer, elaborated from an illito-kaolinitic clay (Douiret region of Tunisia) and industrial waste (silica fume and phosphogypsum), has been tested as promising decontamination of the cytostatic drugs paclitaxel (PCX) and irinotecan (IRI) from water samples. The foamed geopolymer was characterized using X-ray diffraction, Fourier transform infrared, scanning electron microscopy and thermogravimetric analysis before and after adsorption. Adsorption batch assays were performed using different concentrations of PCX and IRI, contact times and environmental conditions. The geopolymer had an excellent removal efficiency (almost 100% for PCX and 89% for IRI) using 20 mg of adsorbent and 2.5 mg/L of each drug concentration. The characterization results showed that cytostatic drugs were adsorbed to the geopolymer through physical interactions, pore filling, electrostatic attraction and hydrogen bonding. The specific surface area and pore volume of the geopolymer were 82.23 m<sup>2</sup>/g and 0.19 cm<sup>3</sup>/g, respectively. In addition to its cost-effective properties, the geopolymer demonstrated excellent efficiency in contaminated natural samples (including influent, effluent wastewater and surface water) denoting a great application for water purification.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 11","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02273-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142397970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation algorithm of greenhouse soil water movement based on cellular automata 基于细胞自动机的温室土壤水分运动模拟算法
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-04 DOI: 10.1007/s13201-024-02280-6
Jinjun Zhou, Tianyi Huang, Hao Wang, Ruirui Sun, Jiahong Liu, Meilin Zhou
{"title":"Simulation algorithm of greenhouse soil water movement based on cellular automata","authors":"Jinjun Zhou,&nbsp;Tianyi Huang,&nbsp;Hao Wang,&nbsp;Ruirui Sun,&nbsp;Jiahong Liu,&nbsp;Meilin Zhou","doi":"10.1007/s13201-024-02280-6","DOIUrl":"10.1007/s13201-024-02280-6","url":null,"abstract":"<div><p>Soil moisture movement reveals the hydrological environment and irrigation characteristics of plants, which is very important and basic hydrological problem. A soil moisture movement algorithm based on cellular automata suitable for greenhouse was proposed to simulate the lateral flow and vertical penetration of soil water in different soil layers. Artemisia annua was used as an experimental plant, and two numerical simulations were set up to determine the minimum water replenishment and the degree of upward soil modification. To verify the performance of the model, corn was used as an experimental plant for application simulation. The numerical simulation results show that the effect of only water for plant cells is superior to soil cells, and the disturbance behavior of the underlying soil layer should be minimized during the cultivation process. The average MAE/RMSE of all soil layers is 0.86/1.06 and in deep layer (50 cm and 60 cm) is 0.53/0.64. It shows the model has a certain prediction and simulation ability, especially in deep soil layers. The proposed algorithm can simply calculate soil flow, set the minimum water replenishment, and evaluate the water replenishment efficiency, which can provide a theoretical reference for the water replenishment and soil replacement scheme.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 10","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02280-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic adsorption–photocatalytic degradation of the emerging contaminant hydroxybenzotriazole by a 3D sponge-like easy separation polypyrrole/TiO2 composite 三维海绵状易分离聚吡咯/二氧化钛复合材料对新兴污染物羟基苯并三唑的协同吸附-光催化降解作用
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-04 DOI: 10.1007/s13201-024-02284-2
Rehab A. Omar, Emad K. Radwan, Said A. Salih, Gehad G. Mohamed
{"title":"Synergistic adsorption–photocatalytic degradation of the emerging contaminant hydroxybenzotriazole by a 3D sponge-like easy separation polypyrrole/TiO2 composite","authors":"Rehab A. Omar,&nbsp;Emad K. Radwan,&nbsp;Said A. Salih,&nbsp;Gehad G. Mohamed","doi":"10.1007/s13201-024-02284-2","DOIUrl":"10.1007/s13201-024-02284-2","url":null,"abstract":"<div><p>Herein, a 3D sponge-like polypyrrole/TiO<sub>2</sub> (Ppy-TiO<sub>2</sub>) composite aerogel was developed for the first time to remove hydroxybenzotriazole (HOBt) from water. Mesoporous TiO<sub>2</sub> was prepared via a sol–gel method, and then the Ppy-TiO<sub>2</sub> composite hydrogel was prepared by oxidative polymerization and converted to aerogel by freeze-drying. The morphological, compositional, and surface characteristics of the prepared materials were detailly characterized. The characterization studies revealed that pure anatase mesoporous TiO<sub>2</sub> nanoparticles were successfully prepared and incorporated into amorphous 3D Ppy with a porous chain-like network structure. Coupling Ppy and TiO<sub>2</sub> extended the light absorption to the visible region and decreased the electron/hole recombination rate. The performance studies revealed that the Ppy-TiO<sub>2</sub> composite has higher adsorption and photocatalytic activities than the sum of the individual components. Optimum performance was obtained at pH 5.3 using 0.25 g/L of the Ppy-TiO<sub>2</sub> composite with a Ppy: TiO<sub>2</sub> mass ratio of 1:1. The intermolecular hydrogen bonding was pivotal in the adsorption process which was multilayer. The degradation of HOBt occurs primarily by holes, then superoxide anion radicals. The total organic carbon (TOC) analysis showed a 90% reduction in carbon content after 30 min of treatment. The toxicity study indicated that the photocatalytic process decreased the toxicity of the HOBt solution. The synergism between adsorption and photocatalysis, easy separation, and reusability promote the application of Ppy-TiO<sub>2</sub> composite aerogel for water treatment.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 10","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02284-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elimination of Cd2+ from synthetic and real polluted water by optimized Acacia nilotica biographene 利用优化的金合欢生物皂去除合成水和实际污染水中的 Cd2+
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-04 DOI: 10.1007/s13201-024-02287-z
Nourhan El-Maghrabi, Manal Fawzy, Alaa El Din Mahmoud
{"title":"Elimination of Cd2+ from synthetic and real polluted water by optimized Acacia nilotica biographene","authors":"Nourhan El-Maghrabi,&nbsp;Manal Fawzy,&nbsp;Alaa El Din Mahmoud","doi":"10.1007/s13201-024-02287-z","DOIUrl":"10.1007/s13201-024-02287-z","url":null,"abstract":"<div><p>Biographene was prepared through the pyrolysis of <i>Acacia nilotica</i> waste using diverse temperatures and time spans. The obtained materials were characterized using scanning electron microscope (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDX), X-ray diffraction analysis (XRD), and Fourier transform infrared spectroscopy (FTIR) methods. The data obtained indicated that when the temperature and time increased, the texture of the biographene became more porous with greater carbon content. The effect of various variables on Cd(II) adsorption, using the optimized biographene product, was investigated, and the results revealed that the optimum pH was 4 and the maximum adsorption capacity was 118.9 mg/g. The Langmuir isotherm model and pseudo-second-order kinetic model best fit the equilibrium data, indicating the adsorptive behavior of the as-prepared biographene implying a homogenous monolayer surface. The recyclability investigation elucidates the remarkable potentiality of up to five consecutive cycles. As such, the biographene-based <i>Acacia nilotica</i> could be considered a sustainable candidate for cadmium removal from polluted water.</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 10","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02287-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated hydrological modelling and streamflow characterization of Gangotri Glacier meltwater 岗戈特里冰川融水的综合水文模型和水流特征描述
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-04 DOI: 10.1007/s13201-024-02283-3
Manohar Arora, N. K. Goel, Kapil Kesarwani, Jatin Malhotra
{"title":"Integrated hydrological modelling and streamflow characterization of Gangotri Glacier meltwater","authors":"Manohar Arora,&nbsp;N. K. Goel,&nbsp;Kapil Kesarwani,&nbsp;Jatin Malhotra","doi":"10.1007/s13201-024-02283-3","DOIUrl":"10.1007/s13201-024-02283-3","url":null,"abstract":"<div><p>Runoff from glaciated catchments is an integrated process that includes glacier melt, snowmelt, rainfall and surface and subsurface runoff of meltwater from glacierized and non-glacierized areas. Monitoring and quantifying the contribution of the hydrologic components (snow, ice and rain) to river discharge in the Himalayan basins is essential for decision-making in the water sector, particularly in water resources management and flood risk reduction in the region. An attempt has been made to characterize and hydrologically model streamflow (Bhagirathi River) for the Gangotri Glacier (Central Himalaya, India). A semi-distributed conceptual hydrological model is used for the streamflow modelling and assessing the major streamflow components (snow melt, glacier melt and rainfall runoff). Initially, the model was calibrated using the available in situ hydro-meteorological records for the ablation seasons of 2013–14 to 2015–16 (3 years), and further validated for the ablation seasons of 2016–17 to 2018–19 (3 years). The model performed well for all the studied years except for some months, where abrupt changes in the contrasting weather parameters (precipitation and temperature) were recorded. In the Gangotri Glacier Valley (upper Bhagirathi River catchment), snowmelt contributed the largest portion (55.5%) to total streamflow followed by glacier melt (29.7%) and rainfall runoff components (14.7%).</p></div>","PeriodicalId":8374,"journal":{"name":"Applied Water Science","volume":"14 10","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13201-024-02283-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic photocatalytic degradation of methylene blue using TiO2 composites with activated carbon and reduced graphene oxide: a kinetic and mechanistic study 利用二氧化钛与活性炭和还原氧化石墨烯的复合材料协同光催化降解亚甲基蓝:动力学和机理研究
IF 5.7 3区 环境科学与生态学
Applied Water Science Pub Date : 2024-10-03 DOI: 10.1007/s13201-024-02286-0
Ahmed Farghaly, Eman Maher, Ali Gad, Haitham El-Bery
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