Journal of Tropical Oceanography ›› 2011, Vol. 30 ›› Issue (1): 35-42.doi: 10.11978/j.issn.1009-5470.2011.01.035cstr: 32234.14.j.issn.1009-5470.2011.01.035

Special Issue: 海洋大数据及应用

• Marine hydrology • Previous Articles     Next Articles

Coastal sea-state monitoring system off Taiwan Island: Its establishment and data analysis

FENG Xiang-bo, YAN Yi-xin   

  1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
  • Received:2009-07-10 Revised:2009-11-25 Online:2011-03-17 Published:2011-03-16
  • About author:冯向波(1982—), 男, 山东省东营市人, 讲师, 主要从事海岸工程方向研究。E-mail: fxbhhu@hhu.edu.cn
  • Supported by:

    水文水资源与水利工程科学国家重点实验室开放基金项目(2008491011); 水文水资源与水利工程科学国家重点实验室专项(2009586712); 高等学校博士学科点专项科研基金项目(20100094120008); 水利公益性行业科研专项(200901062)

Abstract:

Taiwan Island is at the joint of Eurasian Continent and Pacific Plate, and is always threatened by typhoons and northeasterly winds, which may cause enormous loss of human life and property every year. Therefore it is necessary to de-velop a coastal sea-state monitoring system. The COMC (Coastal Ocean Monitoring Center, National Cheng Kung University) built the Taiwan coastal sea-state monitoring system, which is modern and self-sufficient, consisting of moored buoy, pile station, tide station, coastal weather station, and radar monitoring station. To assure the data quality, Data Quality Check Pro-cedure and Standard Operation Procedure were developed by the COMC. For data analysis, some new methods are introduced to make more detailed analysis, such as EMD (empirical mode decomposition) method that is used in the analysis of storm surge water level, wavelet transform that is used to discuss the near-shore wave characteristics from X-band radar images, and data assimilation technique that is applied in wave nowcast operation. The coastal sea-state monitoring system has a great potential in providing ocean information to serve the society.

Key words:  coastal sea-state monitoring, moored buoy, wave monitoring of radar technique, EMD, wavelet transform, data