Assessment of MV Wakashio oil spill off Mauritius, Indian Ocean through satellite imagery: A case study

Rao, V. Trinadha; Suneel, V.; Alex, Mike; Gurumoorthi, K.; Thomas, Antony P.

doi:10.1007/s12040-021-01763-3

Cited by 14 publications

(6 citation statements)

References 46 publications

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“…Despite the long revisit time for satellites, it is challenging to have an oil-slick time series for lengthy periods after the first observation [29]. Thus, it has been recently used in Sentinel-2 imagery an aerial and in situ photographs to validate and authenticate the Sentinel-1 imagery in oil-spill detection [199]. Moreover, in order to have a more accurate validation, the above methods can be combined.…”

Section: Validation In Oil Spill Modelingmentioning

confidence: 99%

Modes of Operation and Forcing in Oil Spill Modeling: State-of-Art, Deficiencies and Challenges

Keramea

Kokkos

Zodiatis

et al. 2023

JMSE

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Oil spills may have devastating effects on marine ecosystems, public health, the economy, and coastal communities. As a consequence, scientific literature contains various up-to-date, advanced oil spill predictive models, capable of simulating the trajectory and evolution of an oil slick generated by the accidental release from ships, hydrocarbon production, or other activities. To predict in near real time oil spill transport and fate with increased reliability, these models are usually coupled operationally to synoptic meteorological, hydrodynamic, and wave models. The present study reviews the available different met-ocean forcings that have been used in oil-spill modeling, simulating hypothetical or real oil spill scenarios, worldwide. Seven state-of-the-art oil-spill models are critically examined in terms of the met-ocean data used as forcing inputs in the simulation of twenty-three case studies. The results illustrate that most oil spill models are coupled to different resolution, forecasting meteorological and hydrodynamic models, posing, however, limited consideration in the forecasted wave field (expressed as the significant wave height, the wave period, and the Stokes drift) that may affect oil transport, especially at the coastal areas. Moreover, the majority of oil spill models lack any linkage to the background biogeochemical conditions; hence, limited consideration is given to processes such as oil biodegradation, photo-oxidation, and sedimentation. Future advancements in oil-spill modeling should be directed towards the full operational coupling with high-resolution atmospheric, hydrodynamic, wave, and biogeochemical models, improving our understanding of the relative impact of each physical and oil weathering process.

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Section: Validation In Oil Spill Modelingmentioning

confidence: 99%

Modes of Operation and Forcing in Oil Spill Modeling: State-of-Art, Deficiencies and Challenges

Keramea

Kokkos

Zodiatis

et al. 2023

JMSE

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“…Five photos were selected for this research because of their quality and relative lack of cloud coverage. Indeed, Mauritius is well monitored by earth observation satellites but with a focus on detecting the impact of seasonal cyclones, which regularly hit the island, climatic factors affecting shoreline change, and erosion risk assessment [21], or for specific environmental disasters such as the recent MV Wakashio oil spill [22]. However, Flat Island is often omitted because of its small size.…”

Section: Data Sourcesmentioning

confidence: 99%

Integrated Remote Sensing to Assess Disease Control: Evidence from Flat Island Quarantine Station, Mauritius

et al. 2022

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This article presents an integrated approach used in archaeology and heritage studies to examine health and disease management during the colonial period in the Indian Ocean. Long-distance labor migrations had dire health consequences to both immigrants and host populations. Focusing on the quarantine station on Flat Island, Mauritius, this study analyzes a historical social setting and natural environment that were radically altered due to the implementation of health management. Using aerial and satellite imagery, digital elevation models, RTK and total station raw data, 3D modeling, and GIS mapping, we reconstructed the spatial organization and the built landscape of this institution to assess the gap between the benefits claimed by European colonizers and the actual effects on immigrant health conditions through the promotion of public health practices.

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“…After that, on January 28, 2017, two ships, BW Maple and MT Dawn Kanchipuram, collided near the Ennore Port, Chennai, on the southern coast of India, in the Bay of Bengal (BoB), releasing approximately 200 tonnes of heavy fuel oil (INCOIS, 2017). On August 25, 2021, another major oil spill occurred near the Mauritius coast and led to 1000 tonnes into Indian Ocean waters 3 – 5 .…”

Section: Introductionmentioning

confidence: 99%

Extraction of persistent lagrangian coherent structures for the pollutant transport prediction in the Bay of Bengal

Trinadha Rao,

Suneel,

Gulakaram

et al. 2024

Sci Rep

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Lagrangian Coherent Structures (LCS) are the hidden fluid flow skeletons that provide meaningful information about the Lagrangian circulation. In this study, we computed the monthly climatological LCSs (cLCS) maps utilizing 24 years (1994–2017) of HYbrid Coordinate Ocean Model (HYCOM) currents and ECMWF re-analysis winds in the Bay of Bengal (BoB). The seasonal reversal of winds and associated reversal of currents makes the BoB dynamic. Therefore, we primarily aim to reveal the cLCSs associated with seasonal monsoon currents and mesoscale (eddies) processes over BoB. The simulated cLCS were augmented with the complex empirical orthogonal functions to confirm the dominant lagrangian transport pattern features better. The constructed cLCS patterns show a seasonal accumulation zone and the transport pattern of freshwater plumes along the coastal region of the BoB. We further validated with the satellite imagery of real-time oil spill dispersion and modelled oil spill trajectories that match well with the LCS patterns. In addition, the application of cLCSs to study the transport of hypothetical oil spills occurring at one of the active oil exploration sites (Krishna-Godavari basin) was described. Thus, demonstrated the accumulation zones in the BoB and confirmed that the persistent monthly cLCS maps are reasonably performing well for the trajectory prediction of pollutants such as oil spills. These maps will help to initiate mitigation measures in case of any occurrence of oil spills in the future.

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Assessment of MV Wakashio oil spill off Mauritius, Indian Ocean through satellite imagery: A case study

Cited by 14 publications

References 46 publications

Modes of Operation and Forcing in Oil Spill Modeling: State-of-Art, Deficiencies and Challenges

Modes of Operation and Forcing in Oil Spill Modeling: State-of-Art, Deficiencies and Challenges

Integrated Remote Sensing to Assess Disease Control: Evidence from Flat Island Quarantine Station, Mauritius

Extraction of persistent lagrangian coherent structures for the pollutant transport prediction in the Bay of Bengal

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