台湾近海水文观测体系的构建及其数据分析方法  

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

作　　者：冯向波[1] 严以新[1] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098

出　　处：《热带海洋学报》2011年第1期35-42,共8页Journal of Tropical Oceanography

基　　金：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)

摘　　要：台湾岛地处亚欧大陆和太平洋交界处,台风、东北季风等所引起的海洋灾害频繁,所以建立完备的海洋水文观测体系显得尤为重要。中国台湾自主建置完成的近海水文观测体系由资料浮标站、观测桩、潮位站、岸边气象站、雷达测波站等多种近海水文观测系统构建组成;同时,为确保观测体系的准确性和规范性,还建立了数据品质管理系统和标准化作业模式。在近海水文观测数据的分析方面,尝试应用新的数学分析方法,如通过EMD(empirical mode decomposition)方法探讨风暴潮水位变化,利用小波转换从雷达观测影像中分析近岸波浪信息,以及发展数据同化技术将观测数据应用于作业化波浪现报、预报模式。此外,近海水文观测体系在社会应用方面有着很大的发展潜质。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.

关 键 词：近海水文观测 资料浮标 雷达测波 EMD 小波分析 数据同化 

分 类 号：P731[天文地球—海洋科学]