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Title: ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models

Abstract

Observational evidence shows that the Walker circulation (WC) in the tropical Pacific has strengthened in recent decades. In this study, we examine the WC trend for 1979–2005 and its relationship with the precipitation associated with the El Niño Southern Oscillation (ENSO) using the sea surface temperature (SST)-constrained Atmospheric Model Intercomparison Project (AMIP) simulations of the Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models. All of the 29 models show a strengthening of the WC trend in response to an increase in the SST zonal gradient along the equator. Despite the same SST-constrained AMIP simulations, however, a large diversity is found among the CMIP5 climate models in the magnitude of the WC trend. The relationship between the WC trend and precipitation anomalies (PRCPAs) associated with ENSO (ENSO-related PRCPAs) shows that the longitudinal position of the ENSO-related PRCPAs in the western tropical Pacific is closely related to the magnitude of the WC trend. Specifically, it is found that the strengthening of the WC trend is large (small) in the CMIP5 AMIP simulations in which the ENSO-related PRCPAs are located relatively westward (eastward) in the western tropical Pacific. Furthermore, the zonal shift of the ENSO-related precipitation in the western tropical Pacific, whichmore » is associated with the climatological mean precipitation in the tropical Pacific, could play an important role in modifying the WC trend in the CMIP5 climate models.« less

Authors:
 [1];  [1];  [2]
  1. Hanyang Univ., Ansan (Korea, Republic of)
  2. Seoul National Univ. (Korea, Republic of)
Publication Date:
Research Org.:
Korea Meteorological Administration Research and Development Program (Korea)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1395870
Resource Type:
Accepted Manuscript
Journal Name:
Atmosphere (Basel)
Additional Journal Information:
Journal Name: Atmosphere (Basel); Journal Volume: 7; Journal Issue: 2; Journal ID: ISSN 2073-4433
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; walker circulation; ENSO; sea surface temperature; precipitation; CMIP5 climate models

Citation Formats

Yim, Bo, Yeh, Sang -Wook, and Sohn, Byung -Ju. ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models. United States: N. p., 2016. Web. doi:10.3390/atmos7020019.
Yim, Bo, Yeh, Sang -Wook, & Sohn, Byung -Ju. ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models. United States. doi:10.3390/atmos7020019.
Yim, Bo, Yeh, Sang -Wook, and Sohn, Byung -Ju. Fri . "ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models". United States. doi:10.3390/atmos7020019. https://www.osti.gov/servlets/purl/1395870.
@article{osti_1395870,
title = {ENSO-Related Precipitation and Its Statistical Relationship with the Walker Circulation Trend in CMIP5 AMIP Models},
author = {Yim, Bo and Yeh, Sang -Wook and Sohn, Byung -Ju},
abstractNote = {Observational evidence shows that the Walker circulation (WC) in the tropical Pacific has strengthened in recent decades. In this study, we examine the WC trend for 1979–2005 and its relationship with the precipitation associated with the El Niño Southern Oscillation (ENSO) using the sea surface temperature (SST)-constrained Atmospheric Model Intercomparison Project (AMIP) simulations of the Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models. All of the 29 models show a strengthening of the WC trend in response to an increase in the SST zonal gradient along the equator. Despite the same SST-constrained AMIP simulations, however, a large diversity is found among the CMIP5 climate models in the magnitude of the WC trend. The relationship between the WC trend and precipitation anomalies (PRCPAs) associated with ENSO (ENSO-related PRCPAs) shows that the longitudinal position of the ENSO-related PRCPAs in the western tropical Pacific is closely related to the magnitude of the WC trend. Specifically, it is found that the strengthening of the WC trend is large (small) in the CMIP5 AMIP simulations in which the ENSO-related PRCPAs are located relatively westward (eastward) in the western tropical Pacific. Furthermore, the zonal shift of the ENSO-related precipitation in the western tropical Pacific, which is associated with the climatological mean precipitation in the tropical Pacific, could play an important role in modifying the WC trend in the CMIP5 climate models.},
doi = {10.3390/atmos7020019},
journal = {Atmosphere (Basel)},
number = 2,
volume = 7,
place = {United States},
year = {2016},
month = {1}
}

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Works referenced in this record:

How well do current climate models simulate two types of El Nino?
journal, August 2011


Convective Control of ENSO Simulated in MIROC
journal, January 2011

  • Watanabe, Masahiro; Chikira, Minoru; Imada, Yukiko
  • Journal of Climate, Vol. 24, Issue 2
  • DOI: 10.1175/2010JCLI3878.1

Changes in the Tropical Pacific SST Trend from CMIP3 to CMIP5 and Its Implication of ENSO
journal, November 2012


An Overview of CMIP5 and the Experiment Design
journal, April 2012

  • Taylor, Karl E.; Stouffer, Ronald J.; Meehl, Gerald A.
  • Bulletin of the American Meteorological Society, Vol. 93, Issue 4
  • DOI: 10.1175/BAMS-D-11-00094.1

Role of the ENSO–Indian Ocean coupling on ENSO variability in a coupled GCM
journal, January 2006

  • Kug, Jong-Seong; Li, Tim; An, Soon-Il
  • Geophysical Research Letters, Vol. 33, Issue 9
  • DOI: 10.1029/2005GL024916

Surface warming patterns drive tropical rainfall pattern responses to CO 2 forcing on all timescales : SURFACE WARMING AND RAINFALL PATTERNS
journal, January 2014

  • Chadwick, Robin; Good, Peter; Andrews, Timothy
  • Geophysical Research Letters, Vol. 41, Issue 2
  • DOI: 10.1002/2013GL058504

Regional sea level trends due to a Pacific trade wind intensification: SEA LEVEL AND PACIFIC TRADE WINDS
journal, November 2011

  • Merrifield, Mark A.; Maltrud, Mathew E.
  • Geophysical Research Letters, Vol. 38, Issue 21
  • DOI: 10.1029/2011GL049576

Indian Ocean warming modulates Pacific climate change
journal, October 2012

  • Luo, J. -J.; Sasaki, W.; Masumoto, Y.
  • Proceedings of the National Academy of Sciences, Vol. 109, Issue 46
  • DOI: 10.1073/pnas.1210239109

Pacific Walker Circulation variability in coupled and uncoupled climate models
journal, April 2014


Strengthened tropical circulations in past three decades inferred from water vapor transport
journal, January 2010

  • Sohn, B. J.; Park, Seong-Chan
  • Journal of Geophysical Research, Vol. 115, Issue D15
  • DOI: 10.1029/2009JD013713

Slowdown of the Walker circulation driven by tropical Indo-Pacific warming
journal, November 2012

  • Tokinaga, Hiroki; Xie, Shang-Ping; Deser, Clara
  • Nature, Vol. 491, Issue 7424
  • DOI: 10.1038/nature11576

Recent Walker circulation strengthening and Pacific cooling amplified by Atlantic warming
journal, August 2014

  • McGregor, Shayne; Timmermann, Axel; Stuecker, Malte F.
  • Nature Climate Change, Vol. 4, Issue 10
  • DOI: 10.1038/nclimate2330

The eastward shift of the Walker Circulation in response to global warming and its relationship to ENSO variability
journal, March 2014


The NCEP/NCAR 40-Year Reanalysis Project
journal, March 1996


The ERA-Interim reanalysis: configuration and performance of the data assimilation system
journal, April 2011

  • Dee, D. P.; Uppala, S. M.; Simmons, A. J.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 137, Issue 656
  • DOI: 10.1002/qj.828

Twentieth century tropical sea surface temperature trends revisited: TWENTIETH CENTURY TROPICAL SST TRENDS
journal, May 2010

  • Deser, Clara; Phillips, Adam S.; Alexander, Michael A.
  • Geophysical Research Letters, Vol. 37, Issue 10
  • DOI: 10.1029/2010GL043321

Improvements to NOAA’s Historical Merged Land–Ocean Surface Temperature Analysis (1880–2006)
journal, May 2008

  • Smith, Thomas M.; Reynolds, Richard W.; Peterson, Thomas C.
  • Journal of Climate, Vol. 21, Issue 10
  • DOI: 10.1175/2007JCLI2100.1

Monsoons: Processes, predictability, and the prospects for prediction
journal, June 1998

  • Webster, P. J.; Magaña, V. O.; Palmer, T. N.
  • Journal of Geophysical Research: Oceans, Vol. 103, Issue C7
  • DOI: 10.1029/97JC02719

Twentieth century Walker Circulation change: data analysis and model experiments
journal, April 2011


Interactive Feedback between ENSO and the Indian Ocean
journal, May 2006

  • Kug, Jong-Seong; Kang, In-Sik
  • Journal of Climate, Vol. 19, Issue 9
  • DOI: 10.1175/JCLI3660.1