The Interannual Cycle Features of the Tropical Pacific-Indian Ocean Associated Mode and Its Mechanisms

被引：3

作者：

Li, Xin ^{[1
]}

Xia, Fei ^{[1
]}

Chen, Xiong ^{[1
]}

Shu, Xiaochun ^{[1
]}

Yang, Minghao ^{[1
]}

Li, Lifeng ^{[1
]}

Wang, Dan ^{[2
]}

机构：

[1] Natl Univ Def Technol, Inst Meteorol & Oceanog, Nanjing 211101, Peoples R China

[2] Army Engn Univ, Lib, Nanjing 211101, Peoples R China

来源：

JOURNAL OF COASTAL RESEARCH | 2020年

基金：

中国国家自然科学基金;

关键词：

Pacific-Indian Ocean associated mode (PIOAM); interannual cycle; dynamic mechanism; walker circulation; SEA-SURFACE TEMPERATURE; EQUATORIAL WAVES; REFLECTION; DIPOLE; ENSO;

D O I：

10.2112/SI99-050.1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Based on the SODA ocean analysis data, the interannual cycle features of the tropical Pacific-Indian Ocean associated mode (PIOAM) are studied by means of wavelet analysis and synthetic analysis. It is pointed out that PIOAM has a quasi-biennial cycle and a 3-4-year cycle. Furthermore, the dynamic and thermal mechanisms of the PIOAM interannual cycle are analyzed. The results show that the anomaly of Walker circulation over the two oceans is the key factor which forms the PIOAM. The propagation and reflection of ocean waves and the horizontal and vertical heat transfer of ocean circulation also play an important role in the cycle of PIOAM.

引用

页码：364 / 372

页数：9

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