Catchment to Reef Research Group, TropWater, ACTFR, James Cook University, Townsville, QLD, Australia.
Mar Pollut Bull. 2012;65(4-9):224-35. doi: 10.1016/j.marpolbul.2012.03.001. Epub 2012 Apr 1.
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 Photosystem-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.
在过去 10 年中，利用准真彩色图像绘制了洪水羽状流的范围，并用于计算羽状流的长期出现频率。利用每个流域的溶解无机氮、总悬浮泥沙和 Photosystem-II 除草剂的河川负荷比例，对每个污染物的地表暴露图进行了定标。还通过对二级海洋颜色产品进行处理，对卫星图像（仅湿热带地区）在 11 次洪水事件（2000-2010 年）期间应用分类程序，以区分三种水类型的变化特征：“原始羽状流”，其特征是 TSS 值高；“二次羽状流”，其特征是浮游植物产量高，用升高的叶绿素-a（chl-a）来衡量；“三次羽状流”，其特征是升高的有色溶解和碎屑物质（CDOM+D）。这种分类是对洪水羽状流进行特征描述的第一步。
