摘要
根据珠江口多个定点站近30a表层海水温度（SST）实测资料和气象站观测的气温资料，使用功率谱和小波分析方法，计算分析珠江口SST变化特点、上升趋势及其与El Nino／La Nino的响应关系．结果表明各月SST存在着1-2℃的海域差异，SST的年较差达10～11℃，SST的季节变化与全球气候变暖呈显著相关．1971-2003年SST呈显著上升趋势，其线性上升率为0．019～0．034℃／a，且珠江口外高于口内．El Nino／La Nino事件对珠江口SST变化的影响并非单一的对应关系．
Based on the actual measurement SST data of several fixed stations and the air temperature data of several weather stations in the Zhujiang River estuary in the past thirty years , and used the method of the power spectrum and the wavelet, the character, tendency of SST and the response re- lation to the E1 Nino/La Nino has analyzed, and it concludes that the regional disparity of SST is 1 - 2℃ each month and the SST annual range is 10 - 11℃ . The seasonal variation of SST correlates with the global warming significantly. There is a notable upward tendency during 1971 and 2003, with a linear slope of 0. 019 -0.034℃/a, which is higher in outside of the Zhujiang River estuary than in inside. The affect to the SST change by the El Nino/La Nino is not a single coincidence relation.
出处
《台湾海峡》
CAS
CSCD
北大核心
2006年第1期96-101,共6页
Journal of Oceanography In Taiwan Strait
基金
国家海洋局青年海洋科学基金资助项目(2004029)
国家海洋局南海分局海洋科学技术局长基金资助项目(0327)
关键词
海洋水文学
海表水温
统计分析
长期变化特征
珠江口
ocean hydrology
SST
statistic analysis
character of long-term variation
Zhujiang River estuary
