Surface currents and transport processes in the Strait of Gibraltar: Implications for modeling and management of pollutant spills

González, Carlos J.; Reyes, Emma; Álvarez, O.; Izquierdo, Alfredo; Bruno, Miguel; Mañanes, Rafael

doi:10.1016/j.ocecoaman.2019.104869

Cited by 15 publications

(4 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Strait of Gibraltar is one of the most used maritime ways in the world. More than 100,000 merchant vessels transit the strait every year [34]. In particular, oil vessels pose a threat to the ecological safety of the strait due to the serious consequences of oil spills.…”

Section: Pollutant Transport In the Strait Of Gibraltarmentioning

confidence: 99%

“…In particular, oil vessels pose a threat to the ecological safety of the strait due to the serious consequences of oil spills. Indeed, historically, the Strait of Gibraltar has witnessed several oil spill accidents, for example, the accident of the Sea Spirit on the western side of the Strait of Gibraltar in 1990, and the accident of the Fedra-Tawe in Algeciras Bay in 2008 [34]. This is all the more concerning since the Strait of Gibraltar serves as the conduit through which surface water flows from the Atlantic to the Mediterranean sea [35].…”

Section: Pollutant Transport In the Strait Of Gibraltarmentioning

confidence: 99%

See 1 more Smart Citation

Balanced Meshless Method for Numerical Simulation of Pollutant Transport by Shallow Water Flow over Irregular Bed: Application in the Strait of Gibraltar

Nuwairan

Chaabelasri

2022

Applied Sciences

View full text Add to dashboard Cite

This paper focuses on the implementation of an accurate meshless scheme for the simulation of the advection–diffusion of non-active pollutant in a two-dimensional depth-averaged flow. The depth-averaged flow model includes the shallow water system and the pollutant propagation described by the advection–diffusion equation with diffusion tensor. The mathematical model was implemented by using a meshless method based on local radial basis functions. This method was used to numerically evaluate the spatial derivatives and complemented with the second-order Runge–Kutta method for the time evolution. To remove the non-physical oscillations, which appear at the discontinuity, a filter based on a hyperviscosity operator was applied. To investigate the effectiveness and accuracy of the proposed scheme, a number of tests are presented, including the dam break problem, and the pure transport of a pollutant in a long channel. Finally, a hypothetical example of a pollutant transport in the Strait of Gibraltar is modeled. The results obtained are compared both with analytical solutions and with simulation results obtained by a finite volume method based on the Roe-MUSCL scheme. The main advantages of the proposed method are: (i) the simplicity of implementation, (ii) the ability to handle calculations of slowly varying flows or concentrations, as well as rapidly varying flows containing shocks or discontinuities, and (iii) the ability to satisfy the C-property and guarantee positive values of both water level and pollutant concentration.

show abstract

Section: Pollutant Transport In the Strait Of Gibraltarmentioning

confidence: 99%

Section: Pollutant Transport In the Strait Of Gibraltarmentioning

confidence: 99%

Balanced Meshless Method for Numerical Simulation of Pollutant Transport by Shallow Water Flow over Irregular Bed: Application in the Strait of Gibraltar

Nuwairan

Chaabelasri

2022

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Surface currents play a significant role in the spreading of oil spills. These currents, driven by wind, tides, and the Earth's rotation, can rapidly spread oil over vast areas of the ocean's surface [1], [2]. When oil is spilled into the ocean, it initially forms a slick on the water's surface.…”

Section: Introductionmentioning

confidence: 99%

Current dynamics to detect the spread of oil spills in coastal waters

Qauvani,

Irham,

Setiawan

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Surface flow dynamics modelling is an important aspect of monitoring and detecting oil spills in marine environments, especially coastal waters. The model can predict the spatiotemporal distribution of oil spills in waters before remote sensing technologies such as radar and synthetic aperture radar (SAR) detect the oil spill distribution range. The purpose of this study is to model two-dimensional (2D) surface flow to predict the extent of oil spills, especially in shallow water or coastal areas. The accuracy of this ocean current distribution model was then verified using the case of an oil spill in East Aceh waters based on the results of the detection of synthetic aperture Interference images from the Sentinel-2B satellite Radar (InSAR) Technology from August 1st to September 20th, 2021. The results show that when the fluid dynamics used is residual flow, the oil distribution trajectory moves partly to the north and partly to the south toward the coast of the leak location. However, when mean current is applied, the distribution expands to the south toward the coast. Based on the state of the wind distribution when the oil spill occurred, it shows the same direction as the residual current model, but the influence of the wind is greater than the residual current. So, it can be concluded that oil spills in the waters of East Aceh are more influenced by a combination of mean currents and surface wind direction. These results were validated by the results obtained from satellite images. Therefore, the satellite image validation results indicate that mean flow provide a more accurate indication of oil spill distribution than the average flow in South Aceh waters.

show abstract

“…Moreover, under the impact of the topography and wind forces, the hydrodynamics can be very complex [43]. Therefore, monitoring activities such as maritime transportations, management of pollution spills [34] and fishery [29] could be very challenging. Numerical modelling of such hydrodynamics would require the use of the full threedimensional Navier-Stokes equations.…”

Section: Introductionmentioning

confidence: 99%

A surrogate model for efficient quantification of uncertainties in multilayer shallow water flows

Al-Ghosoun

Moçayd²,

Seaı̈d

2021

Environmental Modelling & Software

View full text Add to dashboard Cite

Surface currents and transport processes in the Strait of Gibraltar: Implications for modeling and management of pollutant spills

Cited by 15 publications

References 51 publications

Balanced Meshless Method for Numerical Simulation of Pollutant Transport by Shallow Water Flow over Irregular Bed: Application in the Strait of Gibraltar

Balanced Meshless Method for Numerical Simulation of Pollutant Transport by Shallow Water Flow over Irregular Bed: Application in the Strait of Gibraltar

Current dynamics to detect the spread of oil spills in coastal waters

A surrogate model for efficient quantification of uncertainties in multilayer shallow water flows

Contact Info

Product

Resources

About