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Papers
61,005 resultsShowing papers similar to Lagrangian characterization of surface transport from the Equatorial Atlantic to the Caribbean Sea using climatological Lagrangian Coherent Structures and Self-Organizing Maps
ClearUncovering microplastic surface transport pathways in the North Sea using Lagrangian coherent structures
This thesis used Lagrangian coherent structures — mathematical features of ocean flow — to identify the dominant pathways for microplastic transport across the surface of the North Sea. Understanding how ocean currents concentrate and move microplastics helps predict where marine life faces the highest exposure risk.
Extraction of persistent lagrangian coherent structures for the pollutant transport prediction in the Bay of Bengal
Researchers mapped long-term ocean circulation patterns in the Bay of Bengal using 24 years of current and wind data to identify persistent flow structures (called Lagrangian Coherent Structures) that control where pollutants travel. These maps were validated against real oil spill satellite imagery and could be used to predict where future oil spills — or floating plastic debris — would accumulate.
Pathways and Hot Spots of Floating and Submerged Microplastics in Atlantic Iberian Marine Waters: A Modelling Approach
Researchers combined a global ocean reanalysis model with a Lagrangian particle-tracking model to simulate the transport pathways and accumulation zones of both floating and submerged microplastics originating from southwestern Iberian coastal waters. The modelling approach identified key hotspots and transport corridors for microplastic pollution in Atlantic Iberian marine waters.
Pathways of marine debris derived from trajectories of Lagrangian drifters
Researchers applied a probabilistic model to global satellite-tracked ocean drifter trajectories to map marine debris pathways, identifying five subtropical convergence zones maintained by Ekman currents where floating debris — including microplastics — preferentially accumulates, confirming predictions with direct ocean surface measurements.
Material and debris transport patterns in Moreton Bay, Australia: The influence of Lagrangian coherent structures
Researchers applied Lagrangian coherent structures (LCS) — mathematical tools that map invisible transport barriers in fluid flow — to predict the fate of floating marine debris in Moreton Bay, Australia, showing that wind and islands significantly redirect debris pathways and that LCS can guide practical marine litter management.
Seasonality of Marine Litter Hotspots in the Wider Caribbean Region
Researchers used marine plastic litter tracking simulations to identify seasonal hotspots of plastic accumulation in the Wider Caribbean Region, which has one of the highest plastic concentrations in the world's oceans. The study found that hotspot locations shift substantially with season, with implications for targeted cleanup and monitoring strategies.
A Regional Lagrangian Model for Assessing the Dispersion of Floating Macroplastics from Different Source Types over the Iberian Peninsula in the North Atlantic Ocean
Researchers used a validated Lagrangian model to track floating macroplastics entering the North Atlantic from rivers, land-based sources, and maritime traffic along Spain's Atlantic coast, finding significant plastic concentrations near the coastline and at medium distances over a seven-year simulation period.
Marine microplastics analysis and their transport in the water column of the Canary Islands region
Researchers characterized marine microplastics in the water column of the Canary Islands, tracking how ocean currents and physical processes transport particles vertically and horizontally. The study found that particle properties and oceanographic conditions jointly determine where microplastics accumulate in the water column.
Macroplastic fate and transport in an Amazonian Estuarine System: A Lagrangian Modelling Approach
Scientists used computer models to track how large plastic waste travels from the city of Belém, Brazil through rivers and waterways to the ocean. They found that plastic pollution gets stuck in certain areas during low water periods but moves quickly to the ocean during high water periods, creating pollution hotspots near the city. This research helps identify where plastic waste accumulates so communities can better target cleanup efforts and prevent this pollution from reaching the ocean and potentially entering our food chain.
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.
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.
Global mapping for the occurrence of all-sized microplastics in seafloor sediments
Researchers developed code for extracting ocean surface current and near-bed thermohaline current data to analyze the hydrodynamic driving forces behind global microplastic distribution patterns in seafloor sediments.
Lagrangian Transport of Marine Litter in the Mediterranean Sea
Researchers analyzed the largest available set of Lagrangian drift data from the Mediterranean Sea to model floating litter transport, finding a general tendency for plastic debris to accumulate in the southern and southeastern Levantine basin — areas not yet targeted by observational campaigns.
Microplastic trajectories and fates in the Canary Current System using TrackMPD
Researchers applied the TrackMPD Lagrangian modeling framework to explore how physical processes including ocean currents and particle properties control microplastic trajectories and fates in the Canary Current System, releasing virtual particles upstream of the Canary Islands using Atlantic-Iberian Biscay Irish operational ocean model fields.
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.
The dynamics of microplastics and associated contaminants: Data-driven Lagrangian and Eulerian modelling approaches in the Mediterranean Sea
Researchers compared Lagrangian and Eulerian data-driven modelling approaches to simulate microplastic dispersal and associated organic pollutant transport in the Mediterranean Sea, finding that adsorption-desorption dynamics between microplastics and hydrophobic contaminants must be coupled for accurate pollution assessment.
Simulation of the transport of marine microplastic particles in the Ionian Archipelago (NE Ionian Sea) using a Lagrangian model and the control mechanisms affecting their transport
Researchers used a Lagrangian particle-tracking model to simulate microplastic transport in the Ionian Archipelago, finding that oceanographic currents drove significant dispersal of particles released from coastal population centers, with implications for biodiversity in this ecologically sensitive part of the Mediterranean.
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.
Simulation of seasonal transport of microplastics and influencing factors inthe China Seas based on the ROMS model
Researchers used the Regional Ocean Modeling System combined with the LTRANS Lagrangian transport model to simulate seasonal microplastic transport throughout the China Seas, finding that circulation patterns, river discharge, and particle properties drive marked seasonal variations in microplastic pathways and spatial distribution.
Impacts of changing ocean circulation on the distribution of marine microplastic litter
Researchers modelled the impact of changing ocean circulation on the distribution of marine microplastics, examining how projected shifts in current patterns may alter the accumulation zones and transport pathways of plastic particles measuring less than 5 mm.
Microplastic dynamics and risk projections in West African coastal areas: Developing a vulnerability index, adverse ecological pathways, and mitigation framework using remote-sensed oceanographic profiles
Researchers analyzed microplastic dynamics along West African coastal areas using remote-sensed oceanographic data from 2019 to 2024. They developed a vulnerability index to assess ecological risk and identified key environmental factors driving microplastic transport in the region. The study proposes a mitigation framework to help coastal communities and policymakers address this growing pollution challenge.
Marine Debris Pathway Across Indonesian Boundary Seas
Lagrangian particle-tracking simulations modeled marine debris trajectories across Indonesian boundary seas, finding that complex ocean circulation patterns and monsoon seasonality strongly influence debris accumulation zones and cross-border transport in this archipelago region.
Wind‐Based Estimations of Ocean Surface Currents From Massive Clusters of Drifters in the Gulf of Mexico
Researchers used ocean surface drifter data from the Gulf of Mexico to develop models estimating surface currents from wind measurements. This type of modeling can be applied to predict how microplastic debris disperses across ocean surfaces after entering from river or coastal sources.
Trajectory of microplastic particles with 2-dimensional hydrodynamic modelling approach at Pekalongan waters, Central Java, Indonesia
Researchers used two-dimensional hydrodynamic modeling to track how microplastic particles move through the waters near Pekalongan, Central Java, Indonesia. They found that tidal currents and seasonal monsoon patterns significantly influence microplastic transport and accumulation near fishing grounds. The study provides a tool for predicting microplastic hotspots that could help guide marine debris management in the region.