Numerical modelling of floating debris in the world's oceans
Numerical modelling of floating debris in the world's oceans
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DOI：
10.1016/j.marpolbul.2011.10.027
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发表时间：
2012-03-01
影响因子：
5.8
通讯作者：
Borrero, J. C.
中科院分区：
文献类型：
--
作者：
Lebreton, L. C. -M.;Greer, S. D.;Borrero, J. C.
一个全球海洋环流模型与一个拉格朗日粒子跟踪模型相结合，模拟了30年来漂浮物在世界海洋中的输入、运输和积累情况。使用陆地和海洋输入，建模结果清楚地显示了主要海洋盆地亚热带纬度五个积聚区的形成。每一个区域的相对大小和集中程度清楚地表明，积聚区主要集中在北方，而被人口稠密地区包围的较小海域也显示出漂浮碎片的高度集中。我们还确定了不同的源区的相对贡献的材料在一个特定的积累区的总量。该研究提供了一个框架，用于描述漂浮海洋垃圾的运输、分布和积累，并可不断更新和调整，以评估反映全球塑料生产和处置变化的情景。(C)2012爱思唯尔有限公司保留所有权利。
A global ocean circulation model is coupled to a Lagrangian particle tracking model to simulate 30 years of input, transport and accumulation of floating debris in the world ocean. Using both terrestrial and maritime inputs, the modelling results clearly show the formation of five accumulation zones in the subtropical latitudes of the major ocean basins. The relative size and concentration of each clearly illustrate the dominance of the accumulation zones in the northern hemisphere, while smaller seas surrounded by densely populated areas are also shown to have a high concentration of floating debris. We also determine the relative contribution of different source regions to the total amount of material in a particular accumulation zone. This study provides a framework for describing the transport, distribution and accumulation of floating marine debris and can be continuously updated and adapted to assess scenarios reflecting changes in the production and disposal of plastic worldwide. (C) 2012 Elsevier Ltd. All rights reserved.