热带海洋学报 ›› 2015, Vol. 34 ›› Issue (2): 8-14.doi: 10.11978/j.issn.1009-5470.2015.02.002

• 海洋气象学 • 上一篇    下一篇

象山港海洋监测浮标在强台风“海葵”影响期间的可靠性分析

赵聪蛟1, 冯辉强2, 祝翔宇2, 周燕3, 4   

  1. 1. 浙江省海洋监测预报中心, 浙江 杭州 310007;
    2. 宁波市海洋与渔业信息监测中心, 浙江 宁波 315010;
    3. 浙江省水产技术推广总站, 浙江 杭州 310012;
    4. 浙江省海洋科学院, 浙江 杭州 310012
  • 收稿日期:2014-03-07 修回日期:2014-06-18 出版日期:2015-04-10 发布日期:2015-04-12
  • 通讯作者: 周燕,教授级高工。E-mail: ahsay@163.com
  • 作者简介:赵聪蛟(1981~),男,河北省柏乡县人,工程师,硕士,主要从事海洋浮标、湿地和海洋生态研究与评价。E-mail:congcong990@163.com
  • 基金资助:

    浙江省“十二五”生态建设项目(浙政发[2011]89号); 海洋公益性行业科研专项(201305012); * 感谢中国科学院南海海洋研究所王东晓研究员对本文水动力过程及近惯性振荡分析的指导;感谢审稿人对文章提出的修改意见。

Reliability analysis of marine monitoring buoy in the Xiangshan Harbor during Typhoon Haikui (1211)

ZHAO Cong-jiao1, FENG Hui-qiang2, ZHU Xiang-yu2, ZHOU Yan3, 4   

  1. 1. Marine Monitoring & Forecasting Center of Zhejiang Province, Hangzhou 310007, China;
    2. Ningbo Marine & Fisheries Information Monitoring Center, Ningbo 315010, China;
    3. Zhejiang Fisheries Technical Extension Center, Hangzhou 310012, China;
    4. Zhejiang Province Academy of Marine Sciences, Hangzhou 310012, China
  • Received:2014-03-07 Revised:2014-06-18 Online:2015-04-10 Published:2015-04-12

摘要:

2012年第11号强台风“海葵”(Haikui)在宁波象山沿海登陆后, 穿过象山港向西北移动。利用布放在象山港内的海洋监测浮标获取的气象、水质等实时监测数据, 通过对地形及台风过境特点的分析, 就“海葵”过境期间浮标应对台风影响的可靠性进行了探讨。结果表明: 1)台风“海葵”过境期间, 象山港海面受风应力驱动产生近惯性振荡, 引起海水搅动, 使水温下降; 浮标实测气压持续下降, 台风登陆2h后才回升; 风速和降雨量呈波动变化, 台风风暴增水及径流使象山港水量、水深增加, 水温下降, 盐度减小, 水体浊度增大。2)江、浙、皖的地形特征使台风强度逐渐衰减, 在其过境期间, 近惯性振荡持续时间较短, 未对象山港海洋监测浮标产生大的影响, 浮标基本没有发生位置偏移。3)象山港生态监测浮标的抗风能力达到了设计要求, 是一个比较稳定的实时监测系统。象山港可以作为台风影响期间浮标的避风港。

关键词: 象山港, 海洋, 浮标, 台风&#x0201c, 海葵&#x0201d, 近惯性振荡

Abstract:

Typhoon Haikui (1211) was the first typhoon that made landfall in Zhejiang province since 2009, which was also the strongest landfall typhoon in China in 2012. After touch-down in the Xiangshan coast, Typhoon Haikui moved to the northwest slowly, and crossed the Xiangshan Harbor. There was a marine monitoring buoy in the Xiangshan Harbor. Using the data of meteorological and water quality parameters collected by the marine monitoring buoy, we analyzed the reliability of the marine monitoring buoy in the Xiangshan Harbor during Typhoon Haikui. The results showed that during the influence of Typhoon Haikui, the water temperature dropped due to a near-inertial oscillation, which generated by the wind stress in the Xiangshan Harbor. The air temperature, pH and dissolved oxygen content collected by the marine monitoring buoy showed little change. The air pressure continued to decline until two hours after the landfall. Wind and rainfall fluctuated. Due to the heavy rainfall brought by Typhoon Haikui, the amount of water, water depth and water turbidity increased due to runoff; the water temperature dropped; and the salinity decreased. Typhoon Haikui weakened slowly after the landfall, and one of the main reasons for the weakening was the terrains in Jiangsu, Zhejiang and Anhui provinces. The near-inertial oscillation with a shorter duration was not sufficient to cause a large position change of the marine monitoring buoy.During the typhoon event, the buoy basically remained in its position. The marine monitoring buoy whose ability to resist typhoon met the design requirements functioned as a relatively stable real-time monitoring system.

Key words: Xiangshan Harbor, marine, buoy, Typhoon Haikui, near-inertial oscillation