【作者】 赵冬至； 文世勇；

【Author】 Dongzhi Zhao, Shiyong Wen Department of ocean remote sensing, National Marine Environmental Monitoring Center, Dalian 116023, China

【机构】 国家海洋环境监测中心海洋遥感室；

【摘要】 为定量得到基于营养盐的中肋骨条藻赤潮灾害危险度空间分布,利用2006年5月东海近岸海域常规趋势性监测断面的研究区监测数据,采用已建立的基于营养盐的赤潮灾害危险度评估方法,在GIS技术平台下,得到研究区的中肋骨条藻赤潮灾害危险度空间分布。结果表明,2006年5月中肋骨条藻赤潮在长江口外海域暴发的概率在空间上呈现从内向外逐渐增大的变化趋势,赤潮在啊hi危险度的空间分布受藻类细胞数与营养盐的空间分布影响。评估结果与现场实测中肋骨条藻细胞数的空间分布相一致,可为赤潮灾害风险评估及灾害减灾防灾提供支持。更多还原

【Abstract】 To obtain the spatial distribution of Skeletonema Costatum red tide hazard degree quantitatively, the data from the East China Sea conventional trend monitoring section in May, 2006 and the hazard degree assessment method of red tide disasters were used to calculate the spatial distribution of S. Costatum red tide hazard degree based on nutrient under geographic information system (GIS) technical platform. The results show that the spatial distribution of hazard degree (Outbreak probability) of S. Costatum red tide in the Yangtze River open waters displays a change trend of increase gradually from inside waters to open waters according to the data, and it is affected by the distributions of algal cell density and the nutrient. The hazard degree assessment results of red tide were consistent with the distributions of S. costatum cell density; and it could provide a support for the risk assessment of red tide disasters and the disaster prevention and reduction.更多还原