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61,005 resultsShowing papers similar to Three-dimensional numerical modelling of transport, fate and distribution of microplastics in the northwestern Arabian/Persian Gulf
ClearSurface microplastics dynamics in the Persian Gulf and Arabian Sea using numerical modelling and CYGNSS satellite estimations
Researchers combined numerical ocean circulation modeling with CYGNSS satellite wind speed data to estimate surface microplastic distribution and transport dynamics in the Persian Gulf and Arabian Sea. The modeling results identified accumulation zones and seasonal transport patterns, linking microplastic distributions to wind forcing and circulation features relevant for managing plastic pollution in these semi-enclosed seas.
Simulation of microplastic transport and dispersion based on a three-dimensional hydrodynamic particle-tracking model in the Beibu Gulf
Researchers developed a three-dimensional hydrodynamic particle-tracking model of microplastic transport in the semi-enclosed Beibu Gulf, finding that monsoon-driven circulation controls dispersal patterns, with microplastics dispersing up to 205 km in spring and storm surges such as Typhoon Yagi significantly intensifying transport and expanding nearshore high-concentration zones.
River and Urban-Related Microplastic Pollution in the Gulf of America: A Modeling Study
Researchers used a Lagrangian particle-tracking model coupled with a high-resolution 1 km three-dimensional regional ocean model to investigate microplastic pollution dynamics in the Gulf of Mexico, focusing on inputs from the Mississippi-Atchafalaya River system and coastal wastewater treatment plant discharges. The modelling study mapped MP transport pathways and accumulation zones in a biologically critical marine environment under multiple emission scenarios.
Modeling transport of microplastics in enclosed coastal waters: A case study in the Fethiye Inner Bay
A numerical model was used to simulate how microplastic particles move through the Fethiye Inner Bay in Turkey, identifying coastal areas where plastics are likely to accumulate. Such transport models are essential for predicting where marine protected areas and cleanup efforts will be most effective.
Characteristics, behaviour and fluxes of microplastics in the coastal boundary zones of the Persian Gulf and Oman Sea
This study characterized the behavior and fluxes of microplastics in the coastal boundary zone, tracking how MPs move between nearshore waters, beach sediments, and the open sea under different hydrodynamic conditions.
Spatial distribution of microplastics in Persian Gulf marine environments
A spatial survey of microplastics in Persian Gulf marine sediments found widespread contamination, with concentrations varying by location and depth. The study adds to evidence that the Gulf's semi-enclosed, heavily trafficked waters are a significant repository for microplastic pollution.
Microplastics in the Eastern Arabian Sea: Decision support tools for monitoring and environmental risk reduction
Researchers quantified microplastic concentrations in the Eastern Arabian Sea, finding a mean of 0.13 particles per cubic metre (range 0.02-0.71), and used hydrodynamic and particle tracking models to assess the fate and distribution of microplastics in coastal environments. The study developed decision support tools and contamination indices to assist monitoring and environmental risk reduction strategies in the region.
Spatial distribution of microplastics in the Gulf of Cadiz as a function of their density: A Lagrangian modelling approach
Researchers coupled a Lagrangian transport model to a high-resolution hydrodynamic model to analyze microplastic distribution in the Gulf of Cadiz, finding that low-density plastics accumulate near estuary sources while high-density particles sink rapidly, with the Guadalquivir and Guadiana estuaries as the dominant input pathways.
An assessment of microplastics threat to the marine environment: A short review in context of the Arabian/Persian Gulf
This review assessed the threat of microplastics to the marine environment of the Arabian/Persian Gulf, highlighting the scarcity of regional data despite high plastic use and waste generation rates in the area, and calling for more systematic research efforts in this understudied region.
Three-dimensional Lagrangian microplastic transport simulations in the Gulf of Naples (Southern Tyrrhenian Sea)
Researchers used the Campania Regional Ocean Model coupled with a Lagrangian particle tracking algorithm to simulate three-dimensional transport of microplastics of varying size and density in the Gulf of Naples during winter and summer 2016. The simulations reveal how seasonal hydrological differences and polymer properties drive distinct horizontal and vertical dispersion patterns for microplastics in this heavily anthropogenically stressed coastal sea.
Microplastics Patch Based on HydrodynamicModeling in The North Indramayu, Java Sea
Hydrodynamic modeling was used to track microplastic transport in the Java Sea off North Indramayu, Indonesia, predicting accumulation zones influenced by tidal currents and seasonal winds. The study provides a modeling framework for understanding microplastic distribution in Indonesian coastal waters, which receive high plastic inputs from land.
Eulerian Modeling of the Three‐Dimensional Distribution of Seven Popular Microplastic Types in the Global Ocean
A three-dimensional Eulerian ocean model was used to simulate the global distribution of seven common microplastic types across ocean depths and regions, predicting that most plastic accumulates in subtropical gyres and on the seafloor rather than at the surface. The modeling framework provides a tool for forecasting where plastic pollution will concentrate under different emission scenarios.
Microplastic Distribution Characteristics Considering the Marine Environment Based on Surface Seawater Quality Parameters in Southern Sea of Korea, 2019
Researchers analyzed microplastic distribution characteristics in marine environments using spatial modeling, identifying accumulation zones and transport pathways driven by ocean currents, depth, and particle density.
Influence of waves on the three-dimensional distribution of plastic in the ocean
Researchers modeled the trajectories of microplastic particles released continuously from coastal sources across realistic ocean simulations to understand how wave dynamics and ocean circulation distribute plastic pollution globally. The model showed that wave-driven mixing significantly influences vertical plastic distribution, not just horizontal surface drift. Including wave effects improves predictions of where ocean microplastics accumulate.
Data Sheet 1_Simulation of microplastic transport and dispersion based on a three-dimensional hydrodynamic particle-tracking model in the Beibu Gulf.pdf
Researchers developed a three-dimensional hydrodynamic particle-tracking model of microplastic transport in the semi-enclosed Beibu Gulf, finding that monsoon-driven circulation controls dispersal patterns, with microplastics dispersing up to 205 km in spring and storm surges such as Typhoon Yagi significantly intensifying transport and expanding nearshore high-concentration zones.
Sources and distribution of microplastics in the east China sea under a three-dimensional numerical modelling
Researchers used three-dimensional numerical modeling to investigate the sources and distribution of microplastics in the East China Sea, finding that riverine inputs from major Chinese rivers are the dominant source and that ocean currents drive accumulation patterns near the Zhoushan fishing ground.
Modeling the transport and accumulation of microplastics in the Gulf of Finland
Researchers used numerical simulations to model how microplastics are transported and accumulate across the Gulf of Finland in the eastern Baltic Sea. The model accounted for diffusion, beaching, resuspension, and biofouling, and found that microplastic accumulation patterns depend strongly on particle buoyancy. The results identify hotspots of microplastic accumulation in this semi-enclosed sea and can inform targeted cleanup efforts.
Size-dependent microplastics transport in a sediment rich environment
Researchers developed a two-dimensional depth-averaged numerical model to simulate size-dependent microplastic transport in sediment-rich estuarine environments, incorporating cohesive and non-cohesive sediment classes to capture how tidal deposition and resuspension cycles govern microplastic fate.
Modeling the Pathways and Accumulation Patterns of Micro- and Macro-Plastics in the Mediterranean
A basin-scale hydrodynamic model tracked plastic debris pathways in the Mediterranean Sea, showing that coastal currents concentrate plastics in the northwestern basin and that both riverine inputs and sea-based sources contribute substantially to the distribution hotspots observed at the surface.
Numerical Modelling of Plastic Debris Transport and Accumulation throughout Portuguese Coast
Researchers applied numerical modelling to simulate the transport and accumulation of plastic debris along the Portuguese coast, assessing how ocean currents drive microplastic dispersal and deposition patterns in this Atlantic coastal region. The study contributes spatial predictions of plastic accumulation hotspots to inform monitoring and management strategies.
Modeling river and urban related microplastic pollution off the southern United States
Researchers used a Lagrangian particle-tracking model coupled with a high-resolution ocean circulation model to simulate the short-term transport and distribution of microplastics entering the Gulf of Mexico from rivers and urban sources along the southern United States coast.
A 3D numerical model to Track Marine Plastic Debris (TrackMPD): Sensitivity of microplastic trajectories and fates to particle dynamical properties and physical processes
The TrackMPD model was introduced as a 3D numerical framework for simulating marine microplastic transport, incorporating particle properties, buoyancy changes, and physical oceanographic processes to improve trajectory and fate predictions.
Numerical Study of Microplastic Dispersal in Simulated Coastal Waters Using CFD Approach
Researchers used CFD numerical simulations to model microplastic dispersal in simulated coastal waters, investigating how particle type, size, shape, flow velocity, and temperature affect the transport and distribution patterns of PET, PU, and polypropylene microplastics.
Role of Indian Ocean Dynamics on Accumulation of Buoyant Debris
Researchers used ocean circulation modeling to investigate the role of Indian Ocean dynamics in accumulating buoyant marine plastic debris, examining how Ekman convergence and regional current patterns shape the distribution of floating debris in the Indian Ocean subtropical gyre.