渤海西部海平面资料均一性订正及变化特征  

Data uniformity revision and variations of the sea level of the western Bohai Sea

作　　者：王慧[1] 刘克修[1] 范文静[1] 范振华[1] 

机构地区：[1]国家海洋信息中心,天津300171

出　　处：《海洋通报》2013年第3期256-264,共9页Marine Science Bulletin

基　　金：海洋公益性行业科研专项(201105002-08);"十二五"科技支撑项目(2011BAC03B02)

摘　　要：海平面资料的质量直接影响到海洋与气候分析的准确性,同时也影响了海洋与气候变化监测、检测和预测工作的业务质量和研究水平的提高。以渤海西部资料序列变动明显的塘沽站(纳入全球海平面观测系统)、建站较短的京唐港和曹妃甸站为例,从长期趋势、年际和年代际周期波动、季节海平面变化以及与邻近站比较等方面详细介绍了资料序列发生突变的时间段诊断、变化原因、变动幅度以及订正方式。使用订正完的海平面月均及年均长期资料序列分析了海平面变化的长期趋势、周期性波动、季节变化特征等,结果能很好地反映出局地区域的海平面变化特征,同时对于研究中国沿海以及西太的海平面变化及气候变化有着重要的意义。Sea level data quality directly affects the analysis accuracy for oceans and climate, also affects the marine and climate change monitoring, the service quality and the detection and prediction of level elevation. In this paper, based on the sea level data fi＇om Tanggu station, Jingtanggang station and Caofeidian station, the data sequence mutation time, the reason for the changes, the changes in magnitude and the revision ways were described. The long-term trend of the sea-level change, low-frequency oscillations, seasonal changes and so on were analyzed by using the revised sea-level data. Analysis results could reflect the local regional sea level variations, with great significance to the research on the sea-level ehange and climate change in China＇s coastal areas as well as the Northwest Pacific Ocean.

关 键 词：渤海西部沿海 海平面数据 均一性 变化特征 

分 类 号：P731[天文地球—海洋科学]