A Further Inquiry on the Mechanism of 30-60 Day Oscillation in the Tropical Atmosphere

Li Chongyin

doi:10.1007/BF02656952

Impact Factor: 5.8

Volume 10 Issue 1

Jan. 1993

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1993 > 10(1): 41-53

A Further Inquiry on the Mechanism of 30-60 Day Oscillation in the Tropical Atmosphere

Li Chongyin

1.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080

Li Chongyin

doi: 10.1007/BF02656952

Abstract
References
Related papers
PDF

Abstract:
In a simple semi-geostropic model on the equatorial β-plane, the theoretical analysis on the 30-60 day oscillation in the tropical atmosphere is further discussed based on the wave-CISK mechanism. The convection heat-ing can excite the CISK-Kelvin wave and CISK-Rossby wave in the tropical atmosphere and they are all the low-frequency modes which drive the activities of 30-60 day oscillation in the tropics. The most favorable conditions to excite the CISK-Kelvin wave and CISK-Rossby wave are indicated: There is convection heating but not very strong in the atmosphere and there is weaker disturbance in the lower troposphere.The influences of vertical shearing of basic flow in the troposphere on the 30-60 day oscillation in the tropics are also discussed.
References

[1]	Song Yi, Chen Longxun, 1992: The Characteristics of 30-60 Day Oscillation and Its Relations to the Interannual Oscillations, ADVANCES IN ATMOSPHERIC SCIENCES, 9, 323-336. doi: 10.1007/BF02656942
[2]	Liao Qinghai, Li Chongyin, 1995: CISK-rossby wave and the 30-60 Day Oscillation in the Tropics, ADVANCES IN ATMOSPHERIC SCIENCES, 12, 1-12. doi: 10.1007/BF02661282
[3]	Huang Ronghui, 1994: Interactions between the 30-60 Day Oscillation, the Walker Circulation and the Convective Activities in the Tropical Western Pacific and Their Relations to the Interannual Oscillation, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 367-384. doi: 10.1007/BF02658156
[4]	Chen Longxun, Zhu Congwen, Wang Wen, Zhang Peiqun, 2001: Analysis of the Characteristics of 30-60 Day Low-Frequency Oscillation over Asia during 1998 SCSMEX, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 623-638. doi: 10.1007/s00376-001-0050-0
[5]	Luo Dehai, 1999: Bifurcation of Nonlinear Kelvin Wave-CISK with Conditional Heating in a Truncated Spectral Model: A Possible Mechanism of 30-60-Day Osculation at the Equator, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 279-296. doi: 10.1007/BF02973088
[6]	Li Chongyin, Han-Ru Cho, Jough-Tai Wang, 2002: CISK Kelvin Wave with Evaporation-Wind Feedback and Air-Sea Interaction A Further Study of Tropical Intraseasonal Oscillation Mechanism, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 379-390. doi: 10.1007/s00376-002-0073-1
[7]	LU Riyu, DONG Huilin, SU Qin, and Hui DING, 2014: The 30-60-day Intraseasonal Oscillations over the Subtropical Western North Pacific during the Summer of 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 1-7. doi: 10.1007/s00376-013-3019-x*
[8]	Jiangyu MAO, Ming WANG, 2018: The 30-60-day Intraseasonal Variability of Sea Surface Temperature in the South China Sea during May-September, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 550-566. doi: 10.1007/s00376-017-7127-x
[9]	REN Baohua, HUANG Ronghui, 2003: 30-60-day Oscillations of Convection and Circulation Associated with the Thermal State of the Western Pacific Warm Pool during Boreal Summer, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 781-793. doi: 10.1007/BF02915403
[10]	He Jinhai, 1990: Discussion of Meridional Propagation Mechanism of Quasi-40-Day Oscillation, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 78-86. doi: 10.1007/BF02919170
[11]	HE Jinhai, YU Jingjing, SHEN Xinyong, 2007: Impacts of SST and SST Anomalies on Low-Frequency Oscillation in the Tropical Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 377-382. doi: 10.1007/s00376-007-0377-2
[12]	REN Fumin, BAI Lina, WU Guoxiong, WANG Zaizhi, WANG Yuan, 2012: A Possible Mechanism of the Impact of Atmosphere--Ocean Interaction on the Activity of Tropical Cyclones Affecting China, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 661-674. doi: 10.1007/s00376-012-1028-9
[13]	Li Chongyin, Zhou Yaping, 1991: An Observational Study of the 30-50 Day Atmospheric Oscillations Part II: Temporal Evolution and Hemispheric Interaction across the Equator, ADVANCES IN ATMOSPHERIC SCIENCES, 8, 399-406. doi: 10.1007/BF02919263
[14]	Li Chongyin, Wu Peili, 1990: An Observational Study of the 30-50 Day Atmospheric Oscillations Part I: Structure and Propagation, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 294-304. doi: 10.1007/BF03179762
[15]	Yang Yan, Zhu Baozhen, 1995: The Dynamical Influence of Land-Sea Contrast and Sea Surface Temperature on Intraseasonal Oscillation in Tropical Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 12, 405-418. doi: 10.1007/BF02657002
[16]	HUANG Feng, LIU Shikuo, 2004: Physical Mechanism and Model of Turbulent Cascades in a Barotropic Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 34-40. doi: 10.1007/BF02915678
[17]	Zhong Qing, Ji Liren, 1992: A Further Study on an Extended Nonlinear Ocean-Atmosphere Coupled Hydrodynamic Characteristic System and the Abrupt Feature of ENSO Events, ADVANCES IN ATMOSPHERIC SCIENCES, 9, 131-146. doi: 10.1007/BF02657504
[18]	HU Ruijin, LIU Qinyu, MENG Xiangfeng, J. Stuart GODFREY, 2005: On the Mechanism of the Seasonal Variability of SST in the Tropical Indian Ocean, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 451-462. doi: 10.1007/BF02918758
[19]	FANG Changfang, WU Lixin, and ZHANG Xiang, 2014: The Impact of Global Warming on the Pacific Decadal Oscillation and the Possible Mechanism, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 118-130. doi: 10.1007/s00376-013-2260-7*
[20]	LI Chongyin, HU Ruijin, YANG Hui, 2005: Intraseasonal Oscillation in the Tropical Indian Ocean, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 617-624. doi: 10.1007/BF02918705

PDF

Get Citation+

Export:

Article Metrics

Article Views: 1661 Times

PDF downloads: 1030 Times

Cited by: Times

Proportional views

Manuscript History

Manuscript received: 10 January 1993

Manuscript revised: 10 January 1993

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A Further Inquiry on the Mechanism of 30-60 Day Oscillation in the Tropical Atmosphere

Li Chongyin

1. LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080

Manuscript received: 1993-01-10
Manuscript revised: 1993-01-10

Abstract: In a simple semi-geostropic model on the equatorial β-plane, the theoretical analysis on the 30-60 day oscillation in the tropical atmosphere is further discussed based on the wave-CISK mechanism. The convection heat-ing can excite the CISK-Kelvin wave and CISK-Rossby wave in the tropical atmosphere and they are all the low-frequency modes which drive the activities of 30-60 day oscillation in the tropics. The most favorable conditions to excite the CISK-Kelvin wave and CISK-Rossby wave are indicated: There is convection heating but not very strong in the atmosphere and there is weaker disturbance in the lower troposphere.The influences of vertical shearing of basic flow in the troposphere on the 30-60 day oscillation in the tropics are also discussed.