skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Asymmetric Modulation of ENSO Teleconnections by the Interdecadal Pacific Oscillation

Journal Article · · Journal of Climate
 [1];  [1];  [1];  [1]
  1. Department of Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, New York

Remote influences of ENSO are known to vary with different phases of the interdecadal Pacific oscillation (IPO). In this work, observational and reanalysis data from 1920 to 2014 are analyzed to present a global synthesis of the IPO’s modulation on ENSO teleconnections, followed by a modeling investigation. Regressions of surface air temperature T, precipitation P, and atmospheric circulations upon IPO and ENSO indices reveal substantial differences between ENSO and IPO teleconnections to regional T and P in terms of spatial pattern, magnitude, and seasonality. The IPO’s modulation on ENSO teleconnections asymmetrically varies with both IPO and ENSO phases. For a given ENSO phase, IPO’s modulations are not symmetric among its two phases; for a given IPO SST anomaly, its influence depends on whether it is superimposed on El Niño, La Niña, or neutral ENSO. The IPO modulations are linked to the atmospheric response to tropical SST anomalies, manifested in the local Hadley circulation and the local Walker circulation at low latitudes and the Rossby wave train in the extratropics, including the Pacific–North American (PNA) pattern in the Northern Hemisphere. A set of numerical experiments using CAM5 forced with different combinations of the IPO- and ENSO-related SSTs moreover reflects the asymmetric modulation arises from the nonlinear Clausius–Clapeyron relation, so that the atmospheric circulation response to the same IPO-induced SST departure is larger during a warm rather than a cold ENSO phase, and the response to a warm IPO state is larger than that to a cold IPO state. The asymmetry depends primarily on the tropical Pacific mean state and tropical SST anomalies and secondarily on extratropical SST anomalies.

Research Organization:
State Univ. of New York (SUNY), Albany, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF)
Grant/Contract Number:
SC0012602; AGS-1353740; OISE-1743738
OSTI ID:
1462603
Alternate ID(s):
OSTI ID: 1541847
Journal Information:
Journal of Climate, Journal Name: Journal of Climate Vol. 31 Journal Issue: 18; ISSN 0894-8755
Publisher:
American Meteorological SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 39 works
Citation information provided by
Web of Science

References (58)

Increased Quasi Stationarity and Persistence of Winter Ural Blocking and Eurasian Extreme Cold Events in Response to Arctic Warming. Part II: A Theoretical Explanation journal May 2017
The impact of El Niño on South American summer climate during different phases of the Pacific Decadal Oscillation journal April 2011
Pacific decadal oscillation and variability of the Indian summer monsoon rainfall journal September 2003
The Significance of the 1976 Pacific Climate Shift in the Climatology of Alaska journal November 2005
Precipitation over East Asia simulated by NCAR CAM5 at different horizontal resolutions: PRECIPITATION SIMULATED BY CAM5 journal May 2015
The uncertainties and causes of the recent changes in global evapotranspiration from 1982 to 2010 journal September 2016
ERA-20C: An Atmospheric Reanalysis of the Twentieth Century journal June 2016
The influence of the Interdecadal Pacific Oscillation on Temperature and Precipitation over the Globe journal February 2015
Surface Climate Variations over the North Atlantic Ocean during Winter: 1900–1989 journal September 1993
Improving the global precipitation record: GPCP Version 2.1 journal January 2009
Impact of Ural Blocking on Winter Warm Arctic–Cold Eurasian Anomalies. Part II: The Link to the North Atlantic Oscillation journal June 2016
Evolution of El Niño–Southern Oscillation and global atmospheric surface temperatures journal January 2002
El Niño, La Niña, and the Nonlinearity of Their Teleconnections journal August 1997
Climate variability during warm and cold phases of the Atlantic Multidecadal Oscillation (AMO) 1871–2008 journal May 2014
Quantifying uncertainties in global and regional temperature change using an ensemble of observational estimates: The HadCRUT4 data set: THE HADCRUT4 DATASET journal April 2012
The Pacific Decadal Oscillation, Revisited journal June 2016
The influence of regional and global climatic oscillations on Croatian climate: INFLUENCE OF REGIONAL AND GLOBAL CLIMATIC OSCILLATIONS journal July 2011
Nonlinear precipitation response to El Niño and global warming in the Indo-Pacific journal August 2013
Interdecadal modulation of Australian rainfall journal February 2002
Decadal to multidecadal variability and the climate change background journal January 2007
The ENSO–Precipitation Teleconnection and Its Modulation by the Interdecadal Pacific Oscillation journal June 2015
Changes in the linear relationship of ENSO-PDO under the global warming: ENSO-PDO relationship journal May 2012
The Pacific-South American modes and their downstream effects journal January 2001
Teleconnections in the Geopotential Height Field during the Northern Hemisphere Winter journal April 1981
Local partitioning of the overturning circulation in the tropics and the connection to the Hadley and Walker circulations journal February 2014
Recent Arctic amplification and extreme mid-latitude weather journal August 2014
Global patterns of ENSO-induced precipitation journal May 2000
Understanding ENSO Diversity journal June 2015
Decadal modulation of global surface temperature by internal climate variability journal April 2015
Two Types of El Niño Events: Cold Tongue El Niño and Warm Pool El Niño journal March 2009
Winter Eurasian cooling linked with the Atlantic Multidecadal Oscillation journal November 2017
The Community Earth System Model: A Framework for Collaborative Research journal September 2013
ENSO-like Interdecadal Variability: 1900–93 journal May 1997
Pacific Interdecadal Climate Variability: Linkages between the Tropics and the North Pacific during Boreal Winter since 1900 journal August 2004
The Pacific–South American Modes and Tropical Convection during the Southern Hemisphere Winter journal June 1998
The Influence of the PDO on Winter Precipitation During High- and Low-Index ENSO Conditions in the Eastern United States journal July 2011
Global seasonal temperature and precipitation anomalies during El Niño autumn and winter journal January 2005
GPCC's new land surface precipitation climatology based on quality-controlled in situ data and its role in quantifying the global water cycle journal March 2013
Analysis of the Nonlinearity of El Niño–Southern Oscillation Teleconnections journal August 2014
The Spatiotemporal Structure of Twentieth-Century Climate Variations in Observations and Reanalyses. Part II: Pacific Pan-Decadal Variability journal June 2008
A mechanism for the multidecadal modulation of ENSO teleconnection with Europe journal October 2014
Impact of Ural Blocking on Winter Warm Arctic–Cold Eurasian Anomalies. Part I: Blocking-Induced Amplification journal June 2016
Present-day South American climate journal October 2009
Pacific Decadal Oscillation and the Hydroclimatology of Western Canada—Review and Prospects journal January 2010
The Twentieth Century Reanalysis Project
  • Compo, G. P.; Whitaker, J. S.; Sardeshmukh, P. D.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 137, Issue 654 https://doi.org/10.1002/qj.776
journal January 2011
Influence of the Pacific Decadal Oscillation on Winter Precipitation and Drought during Years of Neutral ENSO in the Western United States journal February 2007
Surface Temperature Patterns Associated with the Southern Oscillation journal June 1992
Influence of PDO on South Asian summer monsoon and monsoon–ENSO relation journal July 2013
Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation journal August 1995
Dynamics of Interdecadal Climate Variability: A Historical Perspective journal March 2012
Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century journal January 2003
Parametric sensitivity analysis of precipitation at global and local scales in the Community Atmosphere Model CAM5 journal April 2015
Global and Regional Scale Precipitation Patterns Associated with the El Niño/Southern Oscillation journal August 1987
The influence of the inter-decadal Pacific oscillation on US precipitation during 1923–2010 journal July 2012
Interdecadal Modulation of ENSO Teleconnections journal December 1998
Inter-decadal modulation of the impact of ENSO on Australia journal May 1999
Roles of ENSO and PDO in the Link of the East Asian Winter Monsoon to the following Summer Monsoon journal January 2013
The Footprint of the Inter-decadal Pacific Oscillation in Indian Ocean Sea Surface Temperatures journal February 2016

Cited By (2)

Understanding the inter‐decadal variability of autumn precipitation over North Central China using model simulations journal July 2019
Atmospheric and Ocean Dynamics May Explain Cycles in Oceanic Oscillations journal May 2019