Dynamics of Atmospheres and Oceans最新文献

{"title":"Soret and Dufour effects of Bingham plastic fluid flow over a solar radiative heat flux","authors":"Mair Khan ,&nbsp;T. Salahuddin ,&nbsp;Muhammad Awais ,&nbsp;Basem Al Awan ,&nbsp;Muyassar Norberdiyeva ,&nbsp;Nidhal Ben Khedher","doi":"10.1016/j.dynatmoce.2025.101600","DOIUrl":"10.1016/j.dynatmoce.2025.101600","url":null,"abstract":"<div><div>The main concern of current study is the analysis of entropy generation impact on incompressible boundary layer flow near an inclined rough rotating disk by assuming flow characteristic of Bingham plastic material. Variable fluid properties and radiative heat flux are considered under the entropy generation. We presented the solutions for fluid, heat and mass transfer phenomenon that causes large effect on Bingham plastic model. The similarity variables, first initiated by Von-Kàrmàn for viscous fluid is used for Bingham fluid which effectively converted boundary layer equations into ordinary differential equations. The RK-five approach, in conjunction with Cash and Karp, is used to get numerical solutions to the resulting equations. Next utilising the production data, the entropy data are explored by using theoretical and numerical approaches. Tables and figures are used to display the numerical results. The results reveals that the Bingham number reduces the base flow radial velocity and intensify the azimuthal velocity. The thermal and solutal Grashof numbers rises the both the azimuthal velocity. The increment in temperature distribution is observed due to radiation parameter and thermal conductivity coefficient. The augmentation in concentration region is observed due to thermal diffusion coefficient and Soret number. We concluded that numerical results calculated here show perfect description of Bingham fluid, mass and heat transfer features based on Soret and Dufour influence near an inclined rotating disk. Entropy generation increases with increase in the values of <span><math><msub><mrow><mi>α</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span> parameter, Bingham fluid plastic paramter <span><math><mrow><mi>B</mi><mi>n</mi></mrow></math></span>, radiation <span><math><msub><mrow><mi>R</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span> parameter and <span><math><mi>ξ</mi></math></span> parameter.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101600"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compounded influence of extreme coastal water level and subsidence on coastal flooding from satellite showcased at Saint-Louis (Senegal, West Africa)","authors":"Cheikh Omar Tidjani Cissé ,&nbsp;Anoumou Rene Tano ,&nbsp;Emmanuel.K. Brempong ,&nbsp;Adelaïde Taveneau ,&nbsp;Rafael Almar ,&nbsp;Donatus B. Angnuureng ,&nbsp;Boubou Aldiouma Sy","doi":"10.1016/j.dynatmoce.2025.101597","DOIUrl":"10.1016/j.dynatmoce.2025.101597","url":null,"abstract":"<div><div>In the face of rising in sea level due to climate change, the occurrence of extreme events such as storms is increasingly affecting coastal areas, particularly low-lying coasts. Knowledge of these phenomena is an important factor in mitigating the risk of coastal flooding and protecting coastal communities. The main objective of this study is to contribute to the understanding of the joint effect of changes in coastal extreme events and topographic subsidence on coastal flooding in Saint-Louis. As part of this process, we have quantified total water levels at the coast by using the regional sea level variation, ocean tide, surge, wind sea and swell waves data over the 1996–2021 period. All these datasets have been analyzed by Mann-Kendall statistical trend, the synthetic aperture radar (InSAR) interferometry technique, and the ‘zero side rule’ bathtub model. The results reveal a monotonic trend in total water levels on the Langue de Barbarie with the order of 0.049 m/yr the topographic subsidence varies from −6.4 to −0.4 mm/year. The spatialization of the flood wave reveals that the three spatial entities of Saint-Louis are extremely vulnerable to coastal flooding, but the extension of the flood wave is unevenly distributed at spatial scale. A comparison between the trend in maximum subsidence (-6.4 m/yr) and that in extreme mean water levels (0.049 m/yr) shows that the maximum trend in subsidence represents 13.06 % of the maximum trend in extreme coastal water level. This study enabled us to understand the influence of subsidence on flooding in Saint-Louis.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101597"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Double layer stratifications of Carreau Yasuda fluid flow in cylindrical system along with activation energy","authors":"T. Salahuddin ,&nbsp;Aqib Ali ,&nbsp;Muhammad Awais ,&nbsp;Mair Khan ,&nbsp;Nissren Tamam ,&nbsp;Nidhal Ben Khedher","doi":"10.1016/j.dynatmoce.2025.101613","DOIUrl":"10.1016/j.dynatmoce.2025.101613","url":null,"abstract":"<div><div>A study is devoted to investigative a flow of Carreau Yasuda fluid flowing on the stretching cylindrical coordinate system along with variable temperature dependent thermal conductivity and concentration dependent thermal diffusivity. An Arrhenius-type reaction rate with activation energy is used to include the chemical process. The enthalpy change and double stratification are used to investigate thermal and solutal behaviors. Using the similarity transformation, the boundary layer governing equations and their related boundary conditions are converted into ordinary differential equations. The recognized numerical technique namely BVP4C method is used for the solutions of the mass concentration, boundary layer momentum and heat equations. Graphs shows the results of a study into the effect of different physical parameters. The results of current work leaves a remarkable impact in various industrial and engineering appliance. The improvement in power law index <span><math><mi>n</mi></math></span> results decrease in the velocity of the fluid. The increment in the inputs of curvature parameter upsurges the velocity profile while the Weissenberg number and power law index marks the declining impression. The thermal field shows the incrementing behavior due to rising the Damkohler number, heat generation parameter, curvature parameter and thermal conduction coefficient while the decrement in the thermal response is observed due to thermal stratification parameter. The concentration profile declines due to solutal stratification parameter, Damkohler number, and activation energy coefficient, whereas increment is observed in field due to augmentation curvature parameter.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101613"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145519640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Various approximations of mathematical models of planetary internal gravity waves in the f-plane approximation","authors":"Robert G. Zakinyan,&nbsp;Andrey V. Chernyshov,&nbsp;Arthur R. Zakinyan","doi":"10.1016/j.dynatmoce.2025.101604","DOIUrl":"10.1016/j.dynatmoce.2025.101604","url":null,"abstract":"<div><div>The paper proposes a mathematical model describing the propagation of internal inertial-gravity waves (IIGWs) in a stratified atmosphere. The necessity to propose a novel mathematical model stems from the fact that, as shown in the paper, the temperature disturbance field in the existing mathematical models depicting internal gravity waves (IGWs) in the incompressible fluid and anelastic gas approximations is not consistent with the temperature disturbance field derived from the heat conduction equation. In these models, the temperature field is obtained from the diagnostic Boussinesq relation, which states a direct proportionality between the density disturbance (or potential temperature disturbance) and the temperature disturbance. The temperature field in the compressible fluid approximation is consistent, yet it also describes the acoustic spectrum. In this paper, we propose a mathematical model describing the IIGWs in the compressible fluid approximation. In this model, the temperature field is consistent with the heat conduction equation, and the acoustic spectrum is absent. The paper also proposes a general mathematical model for the propagation of IIGWs in a baroclinic atmosphere. This model differs from the compressible fluid approximation in that the state of an air parcel is described not by the adiabatic equation, but by the Mendeleev–Clapeyron equation.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101604"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145321505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mixed convective heat transfer enhancement in hybrid nanofluid flow through complex-finned tube cavities","authors":"Noreen Sher Akbar ,&nbsp;Salman Akhtar ,&nbsp;Shakil Shaiq ,&nbsp;Muhammad Fiaz Hussain ,&nbsp;Taseer Muhammad ,&nbsp;M. Farooq ,&nbsp;M. Bilal Habib","doi":"10.1016/j.dynatmoce.2025.101612","DOIUrl":"10.1016/j.dynatmoce.2025.101612","url":null,"abstract":"<div><div>The advanced energy regulation systems demand an optimal heat balance that can be successfully accomplished through the application of hybrid nanofluids. This research work examines the numerical analysis on convective heat transfer with flow attributes of hybrid nanoparticles formed from molybdenum disulfide and graphene oxide inside a circular domain having narrow edge fins. We have integrated a novel fin configuration with convective heat transfer analysis of hybrid nanofluids. Thermal convection and magnetohydrodynamic effects are employed for this steady, incompressible, laminar flow phenomenon. The complex configuration of governing partial differential equations is numerically solved by utilizing finite element simulations. The impact of fin count on thermal efficiency is evaluated by incorporating 4 and 10 fins respectively. Streamlines, isotherms, and Nusselt number patterns are analyzed against significant dimensionless parameters. The increased fin count optimizes the heat transfer mechanism through improved fluid mixing and greater recirculation zones. The synergistic effects of hybrid nanofluid flow phenomenon efficiently improves heat absorption, flow characteristics, and overall thermal efficiency. The flow field is further stabilized through the application of external magnetic field effects that promotes a uniform distribution with efficient heat transfer. The fin count and design have pivotal role in supervising flow obstructions with better heat flux in magnetohydrodynamic flow environment. The increasing value of Reynold number from 1.1 to 1.5 results in a 20 % increase of Nusselt number from 3.0 to 3.6. A further increase of 11 % in Nusselt number is noted for Reynold equal to 1.7. Nusselt number significantly increases up to 67 %, 89 %, and 95 % with an 80 % increase in Prandtl number for Reynold equal to 1.1, 1.5, and 1.7 respectively. Thus, the higher flow rate and increased viscous effects significantly enhance convective heat transfer in finned tube cavity. The studied parameters have the following ranges <span><math><mrow><mn>0.1</mn><mo>≤</mo><msub><mrow><mi>P</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>≤</mo><mn>20.1</mn><mi>;</mi><mn>1</mn><mo>≤</mo><mi>M</mi><mo>≤</mo><mn>41</mn><mi>;</mi><mn>0.1</mn><mo>≤</mo><msub><mrow><mi>G</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>≤</mo><mn>0.002</mn><mi>;</mi><mn>1</mn><mo>≤</mo><msub><mrow><mi>R</mi></mrow><mrow><mi>e</mi></mrow></msub><mo>≤</mo><mn>31</mn><mi>;</mi><mn>1</mn><mo>≤</mo><msub><mrow><mi>E</mi></mrow><mrow><mi>c</mi></mrow></msub><mo>≤</mo><mn>61</mn><mi>;</mi><mn>1</mn><mo>≤</mo><msub><mrow><mi>R</mi></mrow><mrow><mi>d</mi></mrow></msub><mo>≤</mo><mn>6</mn><mi>;</mi><mn>0.01</mn><mo>≤</mo><msub><mrow><mi>ϕ</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>≤</mo><mn>0.05</mn><mo>.</mo></mrow></math></span></div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101612"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145571251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recurring eddies in the Southern Subtropical and Subantarctic Frontal regions of the Indian sector of the Southern Ocean during austral summer","authors":"P. Sabu ,&nbsp;S. Cxynna ,&nbsp;N.N.S. Vishnu ,&nbsp;Nirmala J. Nair ,&nbsp;Jenson V. George ,&nbsp;N. Anilkumar ,&nbsp;Rahul Mohan","doi":"10.1016/j.dynatmoce.2025.101611","DOIUrl":"10.1016/j.dynatmoce.2025.101611","url":null,"abstract":"<div><div>This study examines the mesoscale eddy variability in the Southern Subtropical Front (SSTF) and Subantarctic Front (SAF) regions of the Indian Sector of the Southern Ocean (ISSO), using high-resolution underway Conductivity-Temperature-Depth (uCTD) data collected during the 11th Indian Scientific Expedition to the Southern Ocean (February–March 2020). Two mesoscale eddies—one cyclonic (41–44 °S, ∼300 km) and one anticyclonic (45–46 °S, ∼100 km)—were identified and analyzed. These features appear to be recurring, with formation driven by baroclinic instability influenced by bathymetry. The anticyclonic eddy exhibited significant modification of local thermohaline structure through water mass mixing. Eddy-induced meridional heat transport was estimated to be ∼+ 0.075 PW north of 42 °S (northward) and ∼−0.075 PW south of 42°30′ S (southward). Notably, the Subtropical Surface Water (STSW) was advected from the SSTF to SAF via the cyclonic eddy’s periphery, resulting in regional modification of water mass between 42 °S and 45 °S. Enhanced primary productivity was observed along the cyclonic eddy's boundary, with chlorophyll-a concentrations reaching 0.8 mgm^-³ . These findings highlight the dynamic role of mesoscale eddies in modulating frontal systems, cross-frontal exchange, and biological productivity, offering critical insights into the physical-biogeochemical coupling in the ISSO under a changing climate.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101611"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145519639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiple analytic solutions for irreversible mechanism and Joule heating impact on dissipative micropolar fluid flow driven by stretching/shrinking surface with PST and PHF boundary conditions","authors":"S.M. Sachhin ,&nbsp;M.S. Bharath ,&nbsp;G.M. Sachin ,&nbsp;U.S. Mahabaleshwar ,&nbsp;D. Laroze ,&nbsp;H.F. Oztop","doi":"10.1016/j.dynatmoce.2025.101616","DOIUrl":"10.1016/j.dynatmoce.2025.101616","url":null,"abstract":"<div><div>The current research aims to examine the Joule heating and magnetic field influence on micropolar fluid flow across expanding surface, which is is significant in enhancing the efficiency in biomedical and engineering fields, In this analysis, examined the influence of entropy generation, magnetic field, porous medium, and prescribed boundary restrictions. To the best of authors knowledge, no prior research has studied all these effects simultaneously, which emphasizes the originality of the current analysis. The considered governing partial differential equations are transformed to ordinary differential equations by using similarity expressions and then formulated analytically using hypergeometric series solutions. The dual solutions have been extracted from the current analysis which offers deeper insights into the micropolar fluid behaviour under considered physical effects. The outcomes of the present analysis reveal that enhancing the porous media and magnetic field reduces the momentum by 15 %. With enhancing the internal heat source enhances the temperature by 20 %, and thermal radiation enhances temperature by 29 %, enhancing the viscosity ration reduces the velocity by 23 %. These results help in analysing the blood movement modelling, advanced medical therapies, and magnetic drug delivery among others.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101616"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145618101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Initiation of quasi-biweekly oscillation over the equatorial western pacific during El Niño and La Niña developing summers","authors":"Kuiping Li ,&nbsp;Keyi Wang","doi":"10.1016/j.dynatmoce.2025.101606","DOIUrl":"10.1016/j.dynatmoce.2025.101606","url":null,"abstract":"<div><div>The quasi-biweekly oscillation (QBWO) represents a significant sub-seasonal variability in the tropical atmosphere, exerting profound impacts on weather and climate systems across the northwestern Pacific. This study investigates the distinct initiation mechanisms of QBWO convection during boreal summers (June-July-August-September) under El Niño and La Niña developing conditions. In La Niña summers, the initiation of QBWO convection is characterized by weaker activity and shallow convection in the initiation region (150°-170°E, 5°S-5°N), which is preconditioned by westward-moving moisture precursors. Subsequently, QBWO convection travels westward along the equator before eventually evolves into deep convection and triggers a distinct forced equatorial Rossby wave response. In contrast, during El Niño summers, QBWO convection initiates more vigorously, manifesting as deep convection right from the onset. A notable Rossby wave response is observed as convection develops, but unlike in La Niña years, the initiation is not preceded by a precursory moisture signal. Instead, it is triggered by a baroclinic divergence field at the equator, which is intricately linked to the meridional winds associated with double unstable developing Rossby wave cells in both hemispheres. These marked disparities in QBWO convection initiation between La Niña and El Niño years are likely attributable to ENSO-induced interannual variations in atmospheric circulation, particularly concerning vertical wind shear and moisture availability. Our findings not only advance the understanding of QBWO initiation dynamics but also shed light on its interannual modulation, thereby offering potential improvements for sub-seasonal climate predictability in tropical regions.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101606"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145362472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical simulation for peristaltic activity of Ree–Eyring nanofluid in curved configuration","authors":"Sadia Ayub ,&nbsp;Nissren Tamam ,&nbsp;Muyassar Norberdiyeva ,&nbsp;Nidhal Ben Khedher","doi":"10.1016/j.dynatmoce.2025.101602","DOIUrl":"10.1016/j.dynatmoce.2025.101602","url":null,"abstract":"<div><div>Peristaltic motion is central to biomedical flows and industrial processes, yet the combined effects of complex rheology, wall compliance, and thermal-magnetic forces remain poorly understood. This study explores the peristaltic transport of Ree–Eyring nanofluid in a curved channel under magnetic field, viscous dissipation, variable viscosity, and chemical reaction. Using long wavelength and low Reynolds number approximations, the nonlinear model is solved numerically through a shooting Runge–Kutta scheme. Results demonstrate that variable viscosity parameter positively impact the velocity and temperature while negatively impacting the concentration profile of nanoparticles in lower channel. The findings provide physical insights into heat and mass transfer in non-Newtonian nanofluids, with direct applications in biomedical device design, polymer processing, and energy systems.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101602"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145466123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MIKE21-based reservoir water quality enhancement simulation study: The case of Miyun Reservoir, China","authors":"Xianqi Zhang ,&nbsp;He Ren ,&nbsp;Jiawen Liu ,&nbsp;Yang Yang ,&nbsp;Yike Liu","doi":"10.1016/j.dynatmoce.2025.101610","DOIUrl":"10.1016/j.dynatmoce.2025.101610","url":null,"abstract":"<div><div>Global climate change and the increasing frequency of extreme weather events are exacerbating environmental degradation and water resource challenges. Given the complexity of reservoirs, it is important to assess the impact on reservoir water quality enhancement through testing. In this study, the hydrodynamic-water quality module coupling was constructed with the help of MIKE21 software and applied to Miyun Reservoir, and the improved water quality enhancement was subsequently validated and three different scenarios were evaluated for water quality. The results showed a significant improvement in water quality in the reservoirs with an average improvement rate of 38.65 %, and pollutant concentrations diffused towards the center of the reservoir in a gradient. The water quality is best improved when the flow rate was doubled and the duration of recharge was reduced by 50 %. In conclusion, the water quality enhancement effect of this study is of great significance for other reservoirs to improve water quality and protect the ecosystem.</div></div>","PeriodicalId":50563,"journal":{"name":"Dynamics of Atmospheres and Oceans","volume":"112 ","pages":"Article 101610"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145466124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}