基于近岸海域自动监测浮标的水华发生过程分析

发布时间：2018-01-20 08:10

  本文关键词： 自动监测 水华 叶绿素 溶解氧 pH　出处：《海洋通报》2016年02期 　论文类型：期刊论文

【摘要】：利用位于广西廉州湾的自动监测浮标从2010年开始监控到的水华监测数据,分析水华发生前后溶解氧、pH、叶绿素等数据变化,结合气象、浮游植物密度数据,探讨不同赤潮藻增殖过程环境因子的变化规律,为赤潮机理及预警预报研究提供科学参考。廉州湾水华的叶绿素自动监测数据高值范围为24.5~77.0μg/L,浮游植物优势种为硅藻,浮游植物密度接近赤潮爆发的阈值。自动监测浮标能捕捉并监控到水华发生全过程,其长时间高频率的观测资料可有效应用于水华及赤潮的预警预报。不同藻种水华的自动监测数据变化具有差异性,在进行水华预警时应综合考虑叶绿素、溶解氧以及pH的变化。气象因素是水华诱发的因素,降雨过后,气温突升,风速小于等于三级时,可结合自动监测网络监测数据,发布水华预警。
[Abstract]:Using Shui Hua monitoring data from the automatic monitoring buoy in Lianzhou Bay, Guangxi since 2010, the changes of dissolved oxygen pH, chlorophyll and other data before and after Shui Hua were analyzed, combined with meteorology. Phytoplankton density data were used to study the variation of environmental factors during the proliferation of red tide algae. The high value of chlorophyll automatic monitoring data of Shui Hua in Lianzhou Bay is 24.5 渭 g / L, and the dominant phytoplankton species is diatom. Phytoplankton density is close to the threshold of red tide outbreak. Automatic monitoring buoy can capture and monitor the whole process of Shui Hua. The observation data of long time and high frequency can be effectively applied to the early warning and forecast of Shui Hua and red tide. There are differences in the automatic monitoring data of the different algae species Shui Hua, so chlorophyll should be considered comprehensively in the early warning of Shui Hua. Do and pH changes. Meteorological factors are caused by Shui Hua. After rainfall, the temperature rises suddenly, the wind speed is less than three levels, can combine with the automatic monitoring network monitoring data, issue Shui Hua early warning.
【作者单位】： 广西壮族自治区海洋环境监测中心站;
【基金】：国家自然科学基金(41466001) 广西自然科学基金(2013GXNSFBA019224;2013GXNSFAA019281) 广西科学研究与技术开发计划(桂科攻14124004-3-13;桂科合14125008-2-8;桂科攻1598016-6) 国家环境保护公益性行业科研专项(201309008)
【分类号】：X834;X55
【正文快照】： 表1主要监测要素1.2监测方法1.2.1水质自动监测自动监测浮标由密封仓系统、监测系统、航标系统、数据采集系统、通信系统、固定锚链系统、太阳能供电系统和室内监控接收系统组成。其中,监测系统主机为多参数水质测定仪(美国YSI公司生产,型号为YSI6600型)。主要监测要素见表1。，

本文编号：1447491