Filters








242 Hits in 5.2 sec

Drifting Speed of Lagrangian Fronts and Oil Spill Dispersal at the Ocean Surface

Gina Fifani, Alberto Baudena, Milad Fakhri, Georges Baaklini, Yannice Faugère, Rosemary Morrow, Laurent Mortier, Francesco d'Ovidio
2021 Remote Sensing  
Finally, we show that a usually neglected Lagrangian quantity, the Lyapunov vector, can be exploited to predict the front drifting speed, and in turn, its future location over a few days, on the basis  ...  Effective action starts with good knowledge of the ocean dynamics and circulation, from which Lagrangian methods derive key information on the dispersal pathways present in the contaminated region.  ...  Acknowledgments: The authors would like to thank all the people who contributed to this work. We gratefully acknowledge the French Institute Collecte Localisation Satellites (CLS) in Brest for  ... 
doi:10.3390/rs13224499 fatcat:qouci6h5hrgkhmpnjrj6pdg5he

Comparison of Operational Oil Spill Trajectory Forecasts with Surface Drifter Trajectories in the Barents Sea

Igor Ivichev Lars Robert Hole, Lev Karlin Cecilie Wettre, Johannes Röhrs
2012 Journal of Geology & Geosciences  
In this study we assess the differences between the spreading of the surface drifters and the trajectories forecast by the operational Lagrangian oil drift model at the Norwegian Meteorological Institute  ...  The differences observed in this study are the consequence of the combined impact of the modeled wind, ocean and current constituents that force the oil drift model.  ...  This research was supported by the BarentsWatch program and the Research Council of Norway (RCN) through the project BioWave (havKyst program) and BarStat (Yggdrasil program).  ... 
doi:10.4172/2329-6755.1000105 fatcat:atcvdf2r7rdp3a5eo6723cwaei

Over What Area Did the Oil and Gas Spread During the 2010 Deepwater Horizon Oil Spill?

Tamay Özgökmen, Eric Chassignet, Clint Dawson, Dmitry Dukhovskoy, Gregg Jacobs, James Ledwell, Oscar Garcia-Pineda, Ian MadDonald, Steven Morey, Maria Olascoaga, Andrew Poje, Mark Reed (+1 others)
2016 Oceanography  
Over what area did the oil and gas spread during the 2010 Deepwater Horizon oil spill? Oceanography 29(3):96-107, http://dx.doi.org/10.5670/ oceanog.2016.74.  ...  ACKNOWLEDGMENTS This research was made possible by a grant from BP/The Gulf of Mexico Research Initiative to the CARTHE and Deep-C Consortia, and by contract M12PC00003 from the Bureau of Ocean Energy  ...  We would like to acknowledge Alex Fabregat for Figure 2 , Eric D'Asaro for the lower panel of Figure 3 , and Edward Ryan for the upper panel of Figure 4 .  ... 
doi:10.5670/oceanog.2016.74 fatcat:altsswastnfr5fc5o75p236eha

Horizontal transport in oil-spill modeling [article]

Rodrigo Duran, Tor Nordam, Mattia Serra, Chris Barker
2021 arXiv   pre-print
Simulating oil transport in the ocean can be done successfully provided that accurate ocean currents and surface winds are available -- this is often too big of a challenge.  ...  The usefulness of Objective Eulerian Coherent Structures is demonstrated to the oil-spill modeling community by revisiting the 2010 Deepwater Horizon accident in the Gulf of Mexico and predicting a prominent  ...  However, the reason why typical oil-spill model forcing, such as ocean currents and 1-3% of the wind, could not explain the surface-oil trajectory remained a mystery.  ... 
arXiv:2009.12954v4 fatcat:de75xmw52fgfrgfojecx6xxza4

Basin-Scale and Near-Surface Circulation in the Gulf of Mexico

Tamay M. Özgökmen, Annalisa Bracco, Eric P. Chassignet, Henry Chang, Shuyi C. Chen, Eric D'Asaro, Baylor Fox-Kemper, Angelique C. Haza, Gregg Jacobs, Guillaume Novelli, Andrew Poje
2021 International Oil Spill Conference Proceedings  
The overarching objective of these experiments was to collect data from a variety of sensors (drifting, aerial and ship-board) to document the circulation and near-surface variability of fronts, where  ...  that influence transport of oil in the ocean and evaluating the accuracy of current-generation ocean models.  ...  The overarching objective of these experiments was to collect data from a variety of sensors (drifting, aerial and ship-board) to document the near-surface variability of fronts, where much of the surface  ... 
doi:10.7901/2169-3358-2021.1.686903 fatcat:uwaar5uqyzd3bgucvub7t2d6zy

Advances in the Application of Surface Drifters

Rick Lumpkin, Tamay Özgökmen, Luca Centurioni
2017 Annual Review of Marine Science  
Surface drifting buoys, or drifters, are used in oceanographic and climate research, oil spill tracking, weather forecasting, search and rescue operations, calibration and validation of velocities from  ...  in the upper ocean, driven by turbulence at scales from waves through the submesoscale to the large-scale geostrophic eddies.  ...  These questions involve the dispersion of biogeochemical tracers in the ocean as well as pollutants from marine oil spills, such as those from the Ixtoc I spill in 1979 ( Jernelöv & Lindén 1981) and  ... 
doi:10.1146/annurev-marine-010816-060641 pmid:27575739 fatcat:tqxrglkfxjaavlctohqtwr3iue

Physical Transport Processes that Affect the Distribution of Oil in the Gulf of Mexico: Observations and Modeling

Michel Boufadel, New Jersey Institute of Technology, Annalisa Bracco, Eric Chassignet, Shuyi Chen, Eric D'Asaro, William Dewar, Oscar Garcia-Pineda, Dubravko Justić, Joseph Katz, Vassiliki Kourafalou, Ian MacDonald (+5 others)
2021 Oceanography  
The wide range of scales in which these physical processes operate includes microscale droplets and bubbles; small-scale turbulence in buoyant plumes and the near-surface "mixed" layer; submesoscale fronts  ...  Physical transport processes such as the circulation and mixing of waters largely determine the spatial distribution of materials in the ocean.  ...  Stokes drift did indeed contribute to the deposition of oil on beaches following the DWH spill (Le .  ... 
doi:10.5670/oceanog.2021.117 fatcat:7arbwhan6fhx7lhte3suzvwxwe

Use of air-deployed drogued drifting buoys for oil spill tracking

Neha Sharma, Peter Brickley, George Owen, Patrice Coholan
2010 OCEANS 2010 MTS/IEEE SEATTLE  
The action of the chemical dispersants combined with surface winds and wave action resulted in high loads of oil particles throughout the mixed layer and extensive surface slicks.  ...  The complex oceanographic and environmental character of the spill location and the application of vast quantities of chemical dispersants combined to create greater challenges for those tasked with mapping  ...  We would also like to acknowledge the use of NOAA NESDIS oil trajectory maps (http://www.ssd.noaa.gov/PS/MPS/deepwater.html).  ... 
doi:10.1109/oceans.2010.5663921 fatcat:2e2yxpyx2jachnrkamxapqveyy

The DeepWater Horizon Oil Slick: Simulations of River Front Effects and Oil Droplet Size Distribution

Lars Robert Hole, Knut-Frode Dagestad, Johannes Röhrs, Cecilie Wettre, Vassiliki H. Kourafalou, Yannis Androulidakis, Heesook Kang, Matthieu Le Hénaff, Oscar Garcia-Pineda
2019 Journal of Marine Science and Engineering  
The effect of river fronts on oil slick transport has been shown using high resolution forcing models and a fully fledged oil drift model, OpenOil.  ...  The results compare well with satellite observations of the surface oil patch after simulating the surface oil patch drift for 7–8 days.  ...  In this study, an open source Lagrangian oil drift model, OpenOil, was used to simulate the DWH oil spill evolution.  ... 
doi:10.3390/jmse7100329 fatcat:d4dwtltkpfc2dpfnjiorwqxgvq

Operational Oceanography System applied to the Prestige oil-spillage event

Manuel González, Luis Ferrer, Adolfo Uriarte, Agurtzane Urtizberea, Ainhoa Caballero
2008 Journal of Marine Systems  
The accuracy of these tools is estimated by a reanalysis of field data transmitted by a sea surface drifting buoy, released at the time of the oil spill.  ...  between the buoy trajectory predicted numerically and the tracked movements of the drifting buoy.  ...  Thanks to the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, for providing the NCEP reanalysis data (from their Web site at www.cdc.noaa.gov).  ... 
doi:10.1016/j.jmarsys.2007.07.005 fatcat:eiz6srdxljha5ijxrvsvojreta

Advances in Observing and Understanding Small-Scale Open Ocean Circulation During the Gulf of Mexico Research Initiative Era

Eric A. D'Asaro, Daniel F. Carlson, Marcelo Chamecki, Ramsey R. Harcourt, Brian K. Haus, Baylor Fox-Kemper, M. Jeroen Molemaker, Andrew C. Poje, Di Yang
2020 Frontiers in Marine Science  
Both the submesoscale and Langmuir processes are sensitive to coupling with surface waves and air-sea flux processes. This sensitivity is a promising area for future studies.  ...  ACKNOWLEDGMENTS We thank Tamay Özgökmen for his wise leadership of CARTHE.  ...  The portion of the slick impacted by the dispersant ("dispersed oil") disconnects from the main plume, being transported in a different direction at much lower speed (from Chen et al., 2018) .  ... 
doi:10.3389/fmars.2020.00349 fatcat:52zsqxytprg4dnjsnxot7iq3a4

An Improved Particle Number-Based Oil Spill Model Using Implicit Viscosity in Marine Simulator

Shaoyang Qiu, Hongxiang Ren, Haijiang Li, Rui Tao, Yi Zhou, Yannis Dimakopoulos
2021 Mathematical Problems in Engineering  
In our DFPBF framework, the governing equations for oil spills and ocean are discretized by Lagrangian particles, and the incompressibility of oil spills and ocean is ensured by solving the divergence-free  ...  In order to uniformly simulate the spreading, drift, breakup, and merging of oil spills at sea, we propose an improved divergence-free position-based fluid (DFPBF) framework based on the particle number  ...  Acknowledgments e authors thank the financial support provided by National Natural Science Foundation of China (Grant no. 52071312), Liaoning Provincial Natural Science Foundation shipping joint fund project  ... 
doi:10.1155/2021/5545051 fatcat:qekkz2nhhbc6febyfui7okibhy

The effect of vertical mixing on the horizontal drift of oil spills

Johannes Röhrs, Knut-Frode Dagestad, Helene Asbjørnsen, Tor Nordam, Jørgen Skancke, Cathleen E. Jones, Camilla Brekke
2018 Ocean Science (OS)  
To realistically resolve the 3-D development of a spill on the ocean surface and in the water column, recently published parameterizations for the vertical mixing of oil spills are implemented in the open-source  ...  Transport of oil between the surface slick and the water column is identified as a crucial component affecting the horizontal transport of oil spills.  ...  This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.  ... 
doi:10.5194/os-14-1581-2018 fatcat:rwrnphgezbflrioar2rzgbgkiq

Progress in Operational Modeling in Support of Oil Spill Response

Christopher H. Barker, Vassiliki H. Kourafalou, CJ Beegle-Krause, Michel Boufadel, Mark A. Bourassa, Steve G. Buschang, Yannis Androulidakis, Eric P. Chassignet, Knut-Frode Dagestad, Donald G. Danmeier, Anusha L. Dissanayake, Jerry A. Galt (+10 others)
2020 Journal of Marine Science and Engineering  
Two main modeling components are discussed: Ocean circulation and oil spill models, to provide details on all attributes that contribute to the success and limitations of the integrated oil spill forecasts  ...  Following the 2010 Deepwater Horizon accident of a massive blow-out in the Gulf of Mexico, scientists from government, industry, and academia collaborated to advance oil spill modeling and share best practices  ...  Acknowledgments: Data for the research funded by GoMRI are publicly available through the Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) at https://data.gulfresearchinitiative.org  ... 
doi:10.3390/jmse8090668 fatcat:c2ks6wklojb2doijfrrjda4x7m

Submesoscale dispersion in the vicinity of the Deepwater Horizon spill

A. C. Poje, T. M. Ozgokmen, B. L. Lipphardt, B. K. Haus, E. H. Ryan, A. C. Haza, G. A. Jacobs, A. J. H. M. Reniers, M. J. Olascoaga, G. Novelli, A. Griffa, F. J. Beron-Vera (+6 others)
2014 Proceedings of the National Academy of Sciences of the United States of America  
Reliable forecasts for the dispersion of oceanic contamination are important for coastal ecosystems, society and the economy as evidenced by the Deepwater Horizon oil spill in the Gulf of Mexico in 2010  ...  The results demonstrate the feasibility and utility of deploying large clusters of drifting instruments to provide synoptic observations of spatial variability of the ocean surface velocity field.  ...  We thank the editor and three anonymous reviewers for their constructive comments. This research was made possible by a grant from BP/The Gulf of Mexico Research Initiative.  ... 
doi:10.1073/pnas.1402452111 pmid:25136097 pmcid:PMC4156713 fatcat:x7mqj5gvx5aytpxsisgww346ma
« Previous Showing results 1 — 15 out of 242 results