海洋在线监测浮标在赤潮监测中的应用研究
作者简介: 陈旭阳(1979—), 女, 广西省钦州市人。本科, 研究方向: 海洋环境监测、动态监测。E-mail:cxysun@qq.com
收稿日期: 2018-03-13
要求修回日期: 2018-04-10
网络出版日期: 2018-10-13
基金资助
国家海洋公益性行业科研专项经费项目(201305023)
国家海洋局南海分局海洋科学技术局长基金项目 (1538)
Application of Real-time monitoring buoy in monitoring red tide
Received date: 2018-03-13
Request revised date: 2018-04-10
Online published: 2018-10-13
Supported by
Public Welfare Project Industry Special Scientific Research of the State Oceanic Administration (201305023)
Director Foundation of South China Sea Branch State Oceanic Administration (1538)
Copyright
利用布设在广西区钦州湾的GX11、GX13两套实时在线监测浮标, 研究钦州湾2016年5月发生的红色赤潮藻(Akashiwo sanguinea)赤潮前后实时监测数据的变化情况。结果表明赤潮的暴发与消退受水文气象因素影响, 当寒流过后, 出现风速降低、气温迅速回升, 尤其是气温呈现昼夜温差小的天气状况时, 应重点监控实时在线浮标监测数据的变化。赤潮过程中pH、溶解氧浓度、叶绿素浓度存在明显的昼夜变化规律并高于正常范围, 三种环境要素具有显著的正相关; 当实时在线浮标监测中发现pH、溶解氧浓度、叶绿素浓度呈现较明显联动的强烈波动, 并且数值相对正常范围迅速升高时, 可进行赤潮预警及布置现场调查; pH、溶解氧浓度、叶绿素浓度的实时在线监测可作为预警环境要素, 为赤潮预警提供科学参考。
陈旭阳 , 刘保良 . 海洋在线监测浮标在赤潮监测中的应用研究[J]. 热带海洋学报, 2018 , 37(5) : 20 -24 . DOI: 10.11978/2018026
We analyzed the marine online monitoring buoy data of Qinzhou Bay in May 2016 to identify the trend in the real-time monitoring data during the Akashiwo sanguinea red tide. Results showed that the outbreak and disappearance of red tide were affected by hydrological and meteorological factors. After the cold surge, the weather condition turned to reduced wind, temperature increased rapidly, especially the temperature showed a small difference between day and night. During such change of weather, attention should have paid to online monitoring buoy. The contents of pH, DO and chlorophyll were higher than their normal ranges, and there existed obvious diurnal variation during the outbreak of red tide. The contents of pH, DO and chlorophyll had significant positive correlations. When the trend of real-time monitoring data showed that pH, DO and chlorophyll had strong fluctuations in a clear linkage and the values increased rapidly above their normal ranges, early warning of red tide should be issued and field investigation can be started. Real-time monitoring of pH, DO and chlorophyll as environmental factors can provide a scientific reference for predicting red tide.
Key words: Red tide; Monitoring buoy; Guangxi
Fig. 1 Location of sampling sites and red tide area图1 浮标站位及赤潮发生区域 |
Fig. 2 Changes of monitoring factors at buoys GX11 and GX13 on 14-21 May 2016图2 GX11、GX13浮标监测要素变化图(2016年5月14—21日) |
Tab. 1 Correlations of monitoring factors at buoy GX11 (n=385)表1 GX11浮标监测要素的相关性(n=385) |
监测 要素 | 气温 | 水温 | 盐度 | pH | 溶解氧 浓度 | 叶绿素 浓度 |
---|---|---|---|---|---|---|
气温 | 1 | |||||
水温 | 0.590** | 1 | ||||
盐度 | -0.304** | -0.490** | 1 | |||
pH | 0.132* | -0.112* | 0.304** | 1 | ||
溶解氧浓度 | 0.181** | 0.048 | 0.058 | 0.938** | 1 | |
叶绿素浓度 | 0.039 | -0.042 | 0.306** | 0.740** | 0.750** | 1 |
注: **为在 0.01 水平上显著相关; *为在0.05 水平上显著相关。 |
Tab. 2 Correlations of monitoring factors at buoy GX13 (n=385)表2 GX13浮标监测要素的相关性(n=385) |
监测 要素 | 气温 | 水温 | 盐度 | pH | 溶解氧 浓度 | 叶绿素浓度 |
---|---|---|---|---|---|---|
气温 | 1 | |||||
水温 | -0.106* | 1 | ||||
盐度 | 0.159** | -0.472** | 1 | |||
pH | -0.073 | -0.599** | 0.403** | 1 | ||
溶解氧浓度 | -0.309** | -0.261** | 0.045 | 0.774** | 1 | |
叶绿素浓度 | -0.163** | -0.467** | 0.240** | 0.221** | 0.299** | 1 |
注: **为在0.01 水平上显著相关; *为在0.05 水平上显著相关。 |
The authors have declared that no competing interests exist.
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