{"id":32366,"date":"2013-12-22T17:33:10","date_gmt":"2013-12-22T15:33:10","guid":{"rendered":"https:\/\/oneearth-oneocean.com\/2013\/12\/22\/modelled-transport-of-benthic-marine-microplastic-pollution-in-the-nazare-canyon\/"},"modified":"2013-12-22T17:33:10","modified_gmt":"2013-12-22T15:33:10","slug":"modelled-transport-of-benthic-marine-microplastic-pollution-in-the-nazare-canyon","status":"publish","type":"post","link":"https:\/\/oneearth-oneocean.com\/en\/plastic-pollution-en\/2013\/modelled-transport-of-benthic-marine-microplastic-pollution-in-the-nazare-canyon\/","title":{"rendered":"Modelled transport of benthic marine microplastic pollution in the Nazar\u00e9 Canyon"},"content":{"rendered":"
Ballent, A., Pando, S., Purser, A., Juliano, M. F., and Thomsen, L.: \nModelled transport of benthic marine microplastic pollution in the \nNazar\u00e9 Canyon, Biogeosciences, 10, 7957-7970, \ndoi:10.5194\/bg-10-7957-2013, 2013.\n\nAbstract. With knowledge of typical hydrodynamic behavior of waste \nplastic material, models predicting the dispersal of benthic plastics \nfrom land sources within the ocean are possible. Here we investigated \nthe hydrodynamic behavior (density, settling velocity and resuspension \ncharacteristics) of non-buoyant preproduction plastic pellets in the \nlaboratory. From these results we used the MOHID modelling system to \npredict what would be the likely transport and deposition pathways of \nsuch material in the Nazar\u00e9 Canyon (Portugal) during the spring\/summer \nmonths of 2009 and the autumn\/winter months of 2011.\n\nModel outputs indicated that non-buoyant plastic pellets would likely be \ntransported up and down canyon as a function of tidal forces, with only \na minor net down canyon movement resulting from tidal action. The model \nindicated that transport down canyon was likely greater during the \nautumn\/winter, primarily as a result of occasional mass transport events \nrelated to storm activity and internal wave action. Transport rates \nwithin the canyon were not predicted to be regular throughout the canyon \nsystem, with stretches of the upper canyon acting more as locations of \npellet deposition than conduits of pellet transport. Topography and the \ndepths of internal wave action are hypothesized to contribute to this \nlack of homogeneity in predicted transport.\n\nhttp:\/\/www.biogeosciences.net\/10\/7957\/2013\/bg-10-7957-2013.pdf<\/a><\/pre>\n","protected":false},"excerpt":{"rendered":"
Ballent, A., Pando, S., Purser, A., Juliano, M. F., and Thomsen, L.: Modelled transport of benthic marine microplastic pollution in the Nazar\u00e9 Canyon, Biogeosciences, 10, 7957-7970, doi:10.5194\/bg-10-7957-2013, 2013. Abstract. With knowledge of typical hydrodynamic behavior of waste plastic material, models predicting the dispersal of benthic plastics from land sources within the ocean are possible. Here we investigated the hydrodynamic behavior (density, settling velocity and resuspension characteristics) of non-buoyant preproduction plastic pellets in the laboratory. From these results we used the MOHID modelling system to predict what would be the likely transport and deposition pathways of such material in the Nazar\u00e9 Canyon (Portugal) during the spring\/summer months of 2009 and the autumn\/winter months of 2011. Model outputs indicated that non-buoyant plastic pellets would likely be transported up and down canyon as a function of tidal forces, with only a minor net down canyon movement resulting from tidal action. The model indicated that transport down canyon was likely greater during the autumn\/winter, primarily as a result of occasional mass transport events related to storm activity and internal wave action. Transport rates within the canyon were not predicted to be regular throughout the canyon system, with stretches of the upper canyon acting more as locations of pellet deposition than conduits of pellet transport. Topography and the depths of internal wave action are hypothesized to contribute to this lack of homogeneity in predicted transport. http:\/\/www.biogeosciences.net\/10\/7957\/2013\/bg-10-7957-2013.pdf<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3459],"tags":[4148,4149,4150],"yoast_head":"\nModelled transport of benthic marine microplastic pollution in the Nazar\u00e9 Canyon - One Earth - One Ocean e. V.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oneearth-oneocean.com\/en\/plastic-pollution-en\/2013\/modelled-transport-of-benthic-marine-microplastic-pollution-in-the-nazare-canyon\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modelled transport of benthic marine microplastic pollution in the Nazar\u00e9 Canyon - One Earth - One Ocean e. V.\" \/>\n<meta property=\"og:description\" content=\"Ballent, A., Pando, S., Purser, A., Juliano, M. F., and Thomsen, L.: Modelled transport of benthic marine microplastic pollution in the Nazar\u00e9 Canyon, Biogeosciences, 10, 7957-7970, doi:10.5194\/bg-10-7957-2013, 2013. Abstract. With knowledge of typical hydrodynamic behavior of waste plastic material, models predicting the dispersal of benthic plastics from land sources within the ocean are possible. Here we investigated the hydrodynamic behavior (density, settling velocity and resuspension characteristics) of non-buoyant preproduction plastic pellets in the laboratory. From these results we used the MOHID modelling system to predict what would be the likely transport and deposition pathways of such material in the Nazar\u00e9 Canyon (Portugal) during the spring\/summer months of 2009 and the autumn\/winter months of 2011. Model outputs indicated that non-buoyant plastic pellets would likely be transported up and down canyon as a function of tidal forces, with only a minor net down canyon movement resulting from tidal action. The model indicated that transport down canyon was likely greater during the autumn\/winter, primarily as a result of occasional mass transport events related to storm activity and internal wave action. Transport rates within the canyon were not predicted to be regular throughout the canyon system, with stretches of the upper canyon acting more as locations of pellet deposition than conduits of pellet transport. Topography and the depths of internal wave action are hypothesized to contribute to this lack of homogeneity in predicted transport. http:\/\/www.biogeosciences.net\/10\/7957\/2013\/bg-10-7957-2013.pdf\" \/>\n<meta property=\"og:url\" content=\"https:\/\/oneearth-oneocean.com\/en\/plastic-pollution-en\/2013\/modelled-transport-of-benthic-marine-microplastic-pollution-in-the-nazare-canyon\/\" \/>\n<meta property=\"og:site_name\" content=\"One Earth - One Ocean e. 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