NDLI: A study on the physical processes of the formation of the ENSO cycle

Content Provider	Springer Nature Link
Author	Zong, Haifeng
Copyright Year	2014
Abstract	The physical processes involved in the formation of the ENSO cycle, as well as the possible roles of the Hadley circulation (HC), Walker circulation (WC), and the propagating waves of the Southern Oscillation/Northern Oscillation (SO/NO) in its formation, were studied using composite and regression methods. The analysis showed that the convection and heat release triggered by ENSO in the central-eastern equatorial Pacific are the primary drivers for the 3–5 year cycle of the HC, WC and the meridional/zonal circulation. The HC plays a key role in the influence of ENSO on the circulation outside the tropics through angular momentum transportation. Meanwhile, the feedback effects of the anomalous circulation in the mid-high latitudes on ENSO are accomplished by the propagating waves of SO/NO associated with the evolutions of HC and WC. These propagating waves are the main agents of the connections among the meridional/zonal circulation outside the tropics, the Asian/Australian monsoon, the anomalous easterly/westerly winds over the tropical Pacific, and ENSO events. It was found that the 3–5 year cycle of the meridional/zonal circulation forced by ENSO is quite different from the several-week variation of the circulation index triggered by the inner dynamic processes of the atmosphere. The former occurs at the global scale with a definite flow pattern, while the latter occurs only in a wide area without a definite flow pattern. Finally, a physical model for the formation of the ENSO cycle composed of two fundamental processes at the basin and global scale, respectively, is proposed.
Starting Page	1395
Ending Page	1406
Page Count	12
File Format	PDF
ISSN	02561530
Journal	Advances in Atmospheric Sciences
Volume Number	31
Issue Number	6
e-ISSN	18619533
Language	English
Publisher	Science Press
Publisher Date	2014-09-10
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ENSO cycle meridional/zonal circulation Hadley circulation propagating waves Southern Oscillation/Northern Oscillation Atmospheric Sciences Meteorology Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Diagnostic equations for the Walker circulation

The zonal structure of the Hadley circulation

A comparison between numerical simulations of forced local Hadley (anti—Hadley) circulation in East Asian and Indian monsoon regions

Intraseasonal oscillation: the global coincidence and its relationship with ENSO cycle

Impact of the Equatorial Atlantic on the El Niño Southern Oscillation

Linkage between the northeast Mongolian precipitation and the Northern Hemisphere Zonal Circulation

Poleward expansion of the hadley circulation in CMIP5 simulations

ENSO, IOD and Indian Summer Monsoon in NCEP climate forecast system

Activities of low-frequency waves in the tropical atmosphere and enso

A study on the physical processes of the formation of the ENSO cycle

Similar Documents

Diagnostic equations for the Walker circulation

The zonal structure of the Hadley circulation

A comparison between numerical simulations of forced local Hadley (anti—Hadley) circulation in East Asian and Indian monsoon regions

Intraseasonal oscillation: the global coincidence and its relationship with ENSO cycle

Impact of the Equatorial Atlantic on the El Niño Southern Oscillation

Linkage between the northeast Mongolian precipitation and the Northern Hemisphere Zonal Circulation

Poleward expansion of the hadley circulation in CMIP5 simulations

ENSO, IOD and Indian Summer Monsoon in NCEP climate forecast system

Activities of low-frequency waves in the tropical atmosphere and enso

A study on the physical processes of the formation of the ENSO cycle