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首页> 外文期刊>Estuarine Coastal and Shelf Science >Modelling the fate of marine debris along a complex shoreline: Lessons from the Great Barrier Reef
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Modelling the fate of marine debris along a complex shoreline: Lessons from the Great Barrier Reef

机译：沿着复杂的海岸线模拟海洋垃圾的命运：大堡礁的教训

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摘要

The accumulation of floating anthropogenic debris in marine and coastal areas has environmental, economic, aesthetic, and human health impacts. Until now, modelling the transport of such debris has largely been restricted to the large-scales of open seas. We used oceanographic modelling to identify potential sites of debris accumulation along a rugged coastline with headlands, islands, rocky coasts and beaches. Our study site was the Great Barrier Reef World Heritage Area that has an emerging problem with debris accumulation. We found that the classical techniques of modelling the transport of floating debris models are only moderately successful due to a number of unknowns or assumptions, such as the value of the wind drift coefficient, the variability of the oceanic forcing and of the wind, the resuspension of some floating debris by waves, and the poorly known relative contribution of floating debris from urban rivers and commercial and recreational shipping. Nevertheless the model was successful in reproducing a number of observations such as the existence of hot spots of accumulation. The orientation of beaches to the prevailing wind direction affected the accumulation rate of debris. The wind drift coefficient and the exact timing of the release of the debris at sea affected little the movement of debris originating from rivers but it affected measurably that of debris originating from ships. It was thus possible to produce local hotspot maps for floating debris, especially those originating from rivers. Such modelling can be used to inform local management decisions, and it also identifies likely priority research areas to more reliably predict the trajectory and landing points of floating debris. (c) 2015 Elsevier Ltd. All rights reserved.
机译：人为漂浮的碎片在海洋和沿海地区的积累对环境，经济，美学和人类健康都有影响。迄今为止，对此类碎片的运输进行建模一直仅限于大规模的公海。我们使用海洋学模型来识别沿崎head的海岸线，岬角，岛屿，多岩石的海岸和海滩的碎片堆积的潜在地点。我们的研究地点是大堡礁世界遗产地区，该地区正在出现碎片堆积问题。我们发现，由于许多未知数或假设（例如风漂移系数的值，海洋强迫和风的可变性，再悬浮），对浮动碎片模型的运输进行建模的经典技术仅取得了一定程度的成功。波浪造成的一些漂浮物的碎片，以及城市河流以及商业和娱乐性运输产生的漂浮物的相对鲜为人知的贡献。然而，该模型成功地再现了许多观察结果，例如存在积聚热点。海滩朝向盛行风向的方向影响了碎屑的积累速率。风漂移系数和海上碎片释放的确切时机对源自河流的碎片的移动影响很小，但可测量地影响了源自船舶的碎片的移动。因此，有可能为漂浮的残骸，特别是那些来自河流的残骸，绘制局部热点地图。这种模型可用于通知本地管理决策，并且还可识别可能的优先研究区域，以更可靠地预测漂浮物的轨迹和着陆点。 （c）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2015年第20期|414-426|共13页
  • 作者

    Critchell K.; Grech A.; Schlaefer J.; Andutta F. P.; Lambrechts J.; Wolanski E.; Hamann M.;

  • 作者单位

    James Cook Univ, Coll Marine & Environm Sci, Ctr Trop Water & Aquat Ecosyst Res, Townsville, Qld 4811, Australia;

    Macquarie Univ, Dept Environm Sci, Sydney, NSW 2109, Australia;

    James Cook Univ, Coll Marine & Environm Sci, Ctr Trop Water & Aquat Ecosyst Res, Townsville, Qld 4811, Australia;

    Griffith Univ, Sch Engn, Griffith, Qld 4222, Australia|Univ New S Wales, SARCCM, Canberra, ACT 2600, Australia;

    Catholic Univ Louvain, Inst Mech Mat & Civil Engn, B-1348 Louvain La Neuve, Belgium;

    James Cook Univ, Coll Marine & Environm Sci, Ctr Trop Water & Aquat Ecosyst Res, Townsville, Qld 4811, Australia|Australian Inst Marine Sci, Townsville, Qld 4810, Australia;

    James Cook Univ, Coll Marine & Environm Sci, Ctr Trop Water & Aquat Ecosyst Res, Townsville, Qld 4811, Australia;

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  • 正文语种 eng
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  • 关键词

    Marine debris; Modelling; Beach orientation; Wind drift coefficient; Coastline; Great Barrier Reef; Marine;

    机译：海洋碎片;建模;海滩方向;风漂系数;海岸线;大堡礁;海洋;

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