徐智昕,周慧,郭佩芳,侍茂崇

• 1:中国海洋大学
• 2:中国科学院海洋研究所
• 3:国家海洋局海洋-大气化学与全球变化重点实验室

摘要(Abstract)：

利用日本气象厅(JAMSTEC)所提供的Argo格点温盐资料,系统地研究了棉兰老隆起(Mindanao Dome;MD)的三维结构及变化特征。结果表明,MD的水平位置大致在5°N~10°N,127°E~145°E范围内1个纬向延伸的狭长带状结构。其垂向范围大致在50~600m之间,强度在次表层100~200m附近最显著。温盐结构表现为深层低温、低盐水向上涌升增强,温跃层深度变浅,上混合层厚度变薄的特征。功率谱分析结果表明,MD具有明显的季节变化信号,表现为冬强秋弱,具有一年和半年的较为显著的变化周期。在El Ni珘no期间,MD的次表层水温明显下降,MD增强。局地风场对MD的变异起着重要作用,MD的变化与该处风应力旋度的变化的相关系数为-0.346。MD的变化和暖池的变化具有较好的负相关关系,在暖池发展比较充分时候,由于其暖水范围增大,暖水厚度增加,在某种程度上会抑制MD的发展;反之亦然。

关键词(KeyWords)： 棉兰老隆起(MD);风应力旋度;暖池;相关

Abstract:

Keywords:

基金项目(Foundation): 国家海洋局海洋-大气化学与全球变化重点实验室开放基金课题项目(GCMAC1102);; 全球变化研究国家重大科学研究计划项目(2012CB956000;2012CB956001)资助

作者(Author): 徐智昕,周慧,郭佩芳,侍茂崇

DOI: 10.16441/j.cnki.hdxb.2014.01.003

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