长江口海域表层水温的季节、年际变化  

Seasonal and Interannual SST Variations in the Changjiang Estuary

作　　者：周晓英[1] 胡德宝[2] 王赐震[1] 胡学军[2] 姚圣康[2] 

机构地区：[1]中国海洋大学海洋环境学院,山东青岛266003 [2]国家海洋局东海预报中心,上海200081

出　　处：《中国海洋大学学报（自然科学版）》2005年第3期357-362,共6页Periodical of Ocean University of China

摘　　要：为研究长江口与黄东海SST变化的异同,根据长江口区引水船海洋站195 9～2 0 0 1年、大戢山海洋站1977～2 0 0 0年月平均表层水温资料,安徽大通水文站1968～1999年月平均径流量资料,利用功率谱分析、Mann Kendall突变检验及相关分析方法,分析长江口区表层水温的季节、年际变化特征。结果表明:长江口区表层水温最高值出现在8月份,最低值出现在2月份。长江口区表层水温的年际变化存在准2年和3～5年的显著振荡周期,东亚季风和长江径流对其变化有影响。长江口区表层水温突变出现在1989年。By power spectrum analysis, Mann-Kendall abrupt change test and correlation analysis, we reveal the seasonal and interannual SST variations in the Changjiang estuary and find the characteristics of the SST variations. The results show that the highest SST appears in August and the lowest SST in February every year.There are SST oscillations in the Changjiang estuary with periods of quasi-2 and 3-5 years. The Monsoon and Changjiang runoff affect the SST variations in the Changjiang estuary. The abrupt change in SST in the Changjiang estuary took place in the year of 1989.

关 键 词：长江口 表层水温(SST) 季节 年际 功率谱 突变 季风 径流 

分 类 号：P731[天文地球—海洋科学] P343