Mapping the pollutants in surface riverine flood plume waters in the Great Barrier Reef, Australia
Mapping the pollutants in surface riverine flood plume waters in the Great Barrier Reef, Australia
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DOI：
10.1016/j.marpolbul.2012.03.001
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发表时间：
2012-01-01
影响因子：
5.8
通讯作者：
Brodie, J.
中科院分区：
文献类型：
--
作者：
Devlin, M. J.;McKinna, L. W.;Brodie, J.
使用准真彩色图像绘制了10年期间洪水羽流水的范围图，并用来计算羽流的长期出现频率。每个流域的溶解无机氮、总悬浮沉积物和qPotossystem-II除草剂的河流负荷的比例贡献被用来缩放每种污染物的地表暴露图。还对11次洪水事件(2000-2010年)期间的卫星图像(仅限湿热带地区)采用了分类程序，办法是对二级海洋颜色产品进行处理，以区分三种水型的变化特征：“初级羽状水”，其特征是TSS值高；“二级羽状水”，其特征是浮游植物产量高，其特征是叶绿素-a(Chl-a)升高；以及“三级羽状水”，其特征是有色溶解和碎屑物质(CDOM+D)升高。这一分类是描述洪水羽流的第一步。皇冠版权所有(C)2012由爱思唯尔有限公司出版。保留所有权利。
The extent of flood plume water over a 10 year period was mapped using quasi-true colour imagery and used to calculate long-term frequency of occurrence of the plumes. The proportional contribution of riverine loads of dissolved inorganic nitrogen, total suspended sediments and qPhotosystem-II herbicides from each catchment was used to scale the surface exposure maps for each pollutant. A classification procedure was also applied to satellite imagery (only Wet Tropics region) during 11 flood events (2000-2010) through processing of level-2 ocean colour products to discriminate the changing characteristics across three water types: "primary plume water", characterised by high TSS values; "secondary plume water", characterised by high phytoplankton production as measured by elevated chlorophyll-a (chl-a), and "tertiary plume water", characterised by elevated coloured dissolved and detrital matter (CDOM + D). This classification is a first step to characterise flood plumes. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.