An Eigen analysis of the interdecadal changes in the structure and frequency of ENSO mode

被引：88

作者：

An, SI ^{[1
]}

Jin, FF ^{[1
]}

机构：

[1] Univ Hawaii Manoa, SOEST, Int Pacific Res Ctr, Honolulu, HI 96822 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 16期

关键词：

D O I：

10.1029/1999GL011090

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The mechanisms of interdecadal changes of El Nino-Southern Oscillation (ENSO) modes are examined through an eigen analysis of a simple coupled ocean-atmosphere model. It is shown that the observed interdecadal climate shift can effectively modify the strength of two major coupled feedbacks for the ENSO mode, namely, the zonal advection and thermocline feedbacks. These modifications lead to quantitative changes of the leading coupled mode in its frequency, growth rate, and spatial pattern, which are consistent with the observation.

引用

页码：2573 / 2576

页数：4

共 31 条

[1] An SI, 2000, J CLIMATE, V13, P2044, DOI 10.1175/1520-0442(2000)013<2044:ICOTSO>2.0.CO
[2] 2
[3] BALMASEDA MA, 1995, J CLIMATE, V8, P2705, DOI 10.1175/1520-0442(1995)008<2705:DASDOE>2.0.CO
[4] 2
[5] Interdecadal interactions between the tropics and midlatitudes in the Pacific basin
Barnett, TP
Pierce, DW
Latif, M
Dommenget, D
Saravanan, R
[J]. GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (05) : 615 - 618
[6] BATTISTI DS, 1988, J ATMOS SCI, V45, P2889, DOI 10.1175/1520-0469(1988)045<2889:DATOAW>2.0.CO
[7] 2
[8] CANE MA, 1985, SCIENCE, V228, P1084
[9] GOLDENBERG SB, 1981, MON WEATHER REV, V109, P1190, DOI 10.1175/1520-0493(1981)109<1190:TASVOT>2.0.CO
[10] 2

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