نتایج جستجو برای: oil spill

تعداد نتایج: 140778  

2017
Yuanzhi Zhang Yu Li Juan M. Lopez-Sanchez

In this paper, we present a comparison between several algorithms for oil spill classifications using fully and compact polarimetric SAR images. Oil spill is considered as one of the most significant sources of marine pollution. As a major difficulty of SAR-based oil spill detection algorithms is the classification between mineral and biogenic oil, we focus on quantitatively analyzing and compa...

2018
Yuling Han T Prabhakar Clement

The Deepwater Horizon (DWH) accident, one of the largest oil spills in U.S. history, contaminated several beaches located along the Gulf of Mexico (GOM) shoreline. The residues from the spill still continue to be deposited on some of these beaches. Methods to track and monitor the fate of these residues require approaches that can differentiate the DWH residues from other types of petroleum res...

Journal: :Environmental science & technology 2014
Yi Wan Beili Wang Jong Seong Khim Seongjin Hong Won Joon Shim Jianying Hu

Naphthenic acids (NAs) as toxic components in most petroleum sources are suspected to be one of the major pollutants in the aquatic environment following oil spills, and the polarity and persistence of NAs make it a potential indicator for oil contamination. However, the contamination and potential effects of pollutants in oil spill affected areas remain unknown. To investigate NAs in oil spill...

2013
Shruti Khanna Maria J. Santos Susan L. Ustin Alexander Koltunov Raymond F. Kokaly Dar A. Roberts

The British Petroleum Deepwater Horizon Oil Spill in the Gulf of Mexico was the biggest oil spill in US history. To assess the impact of the oil spill on the saltmarsh plant community, we examined Advanced Visible Infrared Imaging Spectrometer (AVIRIS) data flown over Barataria Bay, Louisiana in September 2010 and August 2011. Oil contamination was mapped using oil absorption features in pixel ...

2016
Gregory P Dietl Stephen R Durham

Documentation of the near- and long-term effects of the Deepwater Horizon (DWH) oil spill, one of the largest environmental disasters in US history, is still ongoing. We used a novel before-after-control-impact analysis to test the hypothesis that average body size of intertidal populations of the eastern oyster (Crassostrea virginica) inhabiting impacted areas in Louisiana decreased due to inc...

2015
S. Reza Pezeshki Ronald D. DeLaune

The present review summarizes the literature on the effects of oil spill on the U.S. Gulf of Mexico coastal vegetation including freshwater-, brackish-, and salt-marshes. When in contact with plant tissues, oil may have adverse impacts via physical and chemical effects. Oil may also become detrimental to plants by covering soil surfaces, leading to root oxygen stress and/or penetrate into the s...

Journal: :J. Applied Mathematics 2012
Yong-Sik Cho Tak-Kyeom Kim Woochang Jeong Taemin Ha

The spreading of oil in an open ocean may cause serious damage to a marine environmental system. Thus, an accurate prediction of oil spill is very important to minimize coastal damage due to unexpected oil spill accident. The movement of oil may be represented with a numerical model that solves an advection-diffusion-reaction equation with a proper numerical scheme. In this study, the spilled o...

2016
Ira Leifer William J. Lehr Debra Simecek-Beatty Eliza Bradley Roger Clark Philip Dennison Yongxiang Hu Scott Matheson Cathleen E. Jones Benjamin Holt Molly Reif Dar A. Roberts Jan Svejkovsky Gregg Swayze Jennifer Wozencraft

State of the art satellite and airborne marine oil spill remote sensing: Application to the BP Deepwater Horizon oil spill" (2012). Publications, a b s t r a c t a r t i c l e i n f o The vast and persistent Deepwater Horizon (DWH) spill challenged response capabilities, which required accurate , quantitative oil assessment at synoptic and operational scales. Although experienced observers are ...

2017
Yongcun Cheng Jean Tournadre Xiaofeng Li Qing Xu Bertrand Chapron

Ocean surface films can damp short capillary-gravity waves, reduce the surface mean square slope, and induce ‘‘sigma0 blooms’’ in satellite altimeter data. No study has ascertained the effect of such film on altimeter measurements due to lack of film data. The availability of Environmental Response Management Application (ERMA) oil cover, daily oil spill extent, and thickness data acquired duri...

Journal: :Environmental pollution 2015
Tiago M Alves Eleni Kokinou George Zodiatis Robin Lardner Costas Panagiotakis Hari Radhakrishnan

Oil spill models are combined with bathymetric, meteorological, oceanographic, and geomorphological data to model a series of oil spill accidents in the Eastern Mediterranean Sea. A total of 104 oil spill simulations, computed for 11 different locations in the Levantine Basin, show that oil slicks will reach the coast of Cyprus in four (4) to seven (7) days in summer conditions. Oil slick traje...

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