TITLE

Western pacific warm pool and ENSO asymmetry in CMIP3 models

AUTHOR(S)
Sun, Yan; Sun, De-Zheng; Wu, Lixin; Wang, Fan
PUB. DATE
May 2013
SOURCE
Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p940
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Theoretical and empirical studies have suggested that an underestimate of the ENSO asymmetry may be accompanied by a climatologically smaller and warmer western Pacific warm pool. In light of this suggestion, simulations of the tropical Pacific climate by 19 Coupled Model Intercomparison Project Phase 3 (CMIP3) climate models that do not use flux adjustment were evaluated. Our evaluation revealed systematic biases in both the mean state and ENSO statistics. The mean state in most of the models had a smaller and warmer warm pool. This common bias in the mean state was accompanied by a common bias in the simulated ENSO statistics: a significantly weak asymmetry between the two phases of ENSO. Moreover, despite the generally weak ENSO asymmetry simulated by all models, a positive correlation between the magnitude of the bias in the simulated warm-pool size and the magnitude of the bias in the simulated ENSO asymmetry was found. These findings support the suggested link between ENSO asymmetry and the tropical mean state-the climatological size and temperature of the warm pool in particular. Together with previous studies, these findings light up a path to improve the simulation of the tropical Pacific mean state by climate models: enhancing the asymmetry of ENSO in the climate models.
ACCESSION #
86998898

 

Related Articles

  • ENSO Variability Over the Past Millennium.  // CO2 Science;01/15/2012, Vol. 15 Issue 1, p6 

    This article discusses research being done on the use of the El Nino Southern Oscillation (ENSO) as the leading mode of interannual climate variability in the global climate system. It references a study by D. Khider et al., published in the journal "Paleoceanography" in 2011. The authors...

  • Polar amplification: is atmospheric heat transport important? Alexeev, Vladimir; Jackson, Craig // Climate Dynamics;Aug2013, Vol. 41 Issue 2, p533 

    Surface albedo feedback is widely believed to be the principle contributor to polar amplification. However, a number of studies have shown that coupled ocean-atmosphere models without ice albedo feedbacks still produce significant polar amplification in 2 × CO runs due to atmospheric heat...

  • The Flexible Global Ocean-Atmosphere-Land system model, Spectral Version 2: FGOALS-s2. Bao, Qing; Lin, Pengfei; Zhou, Tianjun; Liu, Yimin; Yu, Yongqiang; Wu, Guoxiong; He, Bian; He, Jie; Li, Lijuan; Li, Jiandong; Li, Yangchun; Liu, Hailong; Qiao, Fangli; Song, Zhenya; Wang, Bin; Wang, Jun; Wang, Pengfei; Wang, Xiaocong; Wang, Zaizhi; Wu, Bo // Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p561 

    The Flexible Global Ocean-Atmosphere-Land System model, Spectral Version 2 (FGOALS-s2) was used to simulate realistic climates and to study anthropogenic influences on climate change. Specifically, the FGOALS-s2 was integrated with Coupled Model Intercomparison Project Phase 5 (CMIP5) to conduct...

  • The flexible global ocean-atmosphere-land system model, Grid-point Version 2: FGOALS-g2. Li, Lijuan; Lin, Pengfei; Yu, Yongqiang; Wang, Bin; Zhou, Tianjun; Liu, Li; Liu, Jiping; Bao, Qing; Xu, Shiming; Huang, Wenyu; Xia, Kun; Pu, Ye; Dong, Li; Shen, Si; Liu, Yimin; Hu, Ning; Liu, Mimi; Sun, Wenqi; Shi, Xiangjun; Zheng, Weipeng // Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p543 

    This study mainly introduces the development of the Flexible Global Ocean-Atmosphere-Land System Model: Grid-point Version 2 (FGOALS-g2) and the preliminary evaluations of its performances based on results from the pre-industrial control run and four members of historical runs according to the...

  • Parameterization of Tropical Instability Waves and Examination of Their Impact on ENSO Characteristics. Imada, Yukiko; Kimoto, Masahide // Journal of Climate;Jul2012, Vol. 25 Issue 13, p4568 

    The impact of tropical instability waves (TIWs) on El Niño-Southern Oscillation (ENSO) characteristics is investigated by introducing a new parameterization of TIWs into an atmosphere-ocean general circulation model (AOGCM), the Model for Interdisciplinary Research on Climate (MIROC), with a...

  • How Does Global Warming Impact the El Niño-Southern Oscillation?  // CO2 Science;9/29/2010, Vol. 13 Issue 39, p4 

    The article discusses research being done on the influence of global warming on the El Niño-Southern Oscillation (ENSO). It references a study by M. Collins and colleagues published in a 2010 issue of "Nature Geoscience." The researchers claim that the anomalous variation of climate on the...

  • Annual cycle and interannual variability in the tropical pacific as simulated by three versions of FGOALS. Yu, Yongqiang; He, Jie; Zheng, Weipeng; Luan, Yihua // Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p621 

    The seasonal cycle and interannual variability in the tropical oceans simulated by three versions of the Flexible Ocean-Atmosphere-Land System (FGOALS) model (FGOALS-g1.0, FGOALS-g2 and FGOALSs2), which have participated in phases 3 and 5 of the Coupled Model Intercomparison Project (CMIP3 and...

  • Steric sea level change in twentieth century historical climate simulation and IPCC-RCP8.5 scenario projection: A comparison of two versions of FGOALS model. Dong, Lu; Zhou, Tianjun // Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p841 

    To reveal the steric sea level change in 20th century historical climate simulations and future climate change projections under the IPCC's Representative Concentration Pathway 8.5 (RCP8.5) scenario, the results of two versions of LASG/IAP's Flexible Global Ocean-Atmosphere-Land System model...

  • Long-term behaviors of two versions of FGOALS2 in preindustrial control simulations with implications for 20th century simulations. Lin, Pengfei; Liu, Hailong; Yu, Yongqiang; Zhou, Tianjun // Advances in Atmospheric Sciences;May2013, Vol. 30 Issue 3, p577 

    Climate drift in preindustrial control (PICTL) simulations can lead to spurious climate trends and large uncertainties in historical and future climate simulations in coupled models. This study examined the longterm behaviors and stabilities of the PICTL simulations in the two versions of...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics