The 30-60-day intraseasonal oscillations over the subtropical western North Pacific during the summer of 1998

被引：20

作者：

Lu Riyu ^{[1
]}

Dong Huilin ^{[1
,2
]}

Su Qin ^{[1
,2
]}

Hui Ding ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Helmholtz Ctr Ocean Res Kiel, D-24148 Kiel, Germany

[4] Univ Kiel, D-24148 Kiel, Germany

来源：

ADVANCES IN ATMOSPHERIC SCIENCES | 2014年 / 31卷 / 01期

基金：

中国国家自然科学基金;

关键词：

intraseasonal oscillation; convection; western North Pacific; tropical-extratropical interaction; OUTGOING LONGWAVE RADIATION; NORTHWESTWARD PROPAGATION; BOREAL SUMMER; CHINA; CONVECTION; MONSOON; OCEAN; SOUTH;

D O I：

10.1007/s00376-013-3019-x

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The features of 30-60-day convection oscillations over the subtropical western North Pacific (WNP) were investigated, along with the degree of tropical-subtropical linkage between the oscillations over the WNP during summer 1998. It was found that 30-60-day oscillations were extremely strong in that summer over both the subtropical and tropical WNP, providing a unique opportunity to study the behavior of subtropical oscillations and their relationship to tropical oscillations. Further analyses indicated that 30-60-day oscillations propagate westwards over the subtropical WNP and reach eastern China. In addition, 30-60-day oscillations in the subtropics are affected by those over the South China Sea (SCS) and tropical WNP through two mechanisms: (1) direct propagation from the tropics into the subtropics; and (2) a seesaw pattern between the tropics and subtropics, with the latter being predominant.

引用

页码：1 / 7

页数：7

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