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Solar influence on the troposphere and oceans through stratospheric processes

Research Project

Project/Area Number 17340143
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionNagoya University (2006)
Japan, Meteorological Research Institute (2005)

Principal Investigator

KODERA Kunihiko  Nagoya University, Graduate School of Environmental Studies, coe Professor, 環境学研究科COE, 特任教授 (70343887)

Co-Investigator(Kenkyū-buntansha) SHIBATA Kiyotaka  Meteorological Research Institute, Atmospheric Environment and Applied Meteorology Research Department, Head, 環境応用研究部, 室長 (50354494)
KURODA Yuhji  Meteorological Research Institute, Climate Research Dpt, senior Researcher, 気候研究部, 主任研究官 (80343888)
YUKIMOTO Seiji  Meteorological Research Institute, Climate Research Dpt, senior Researcher, 気候研究部, 主任研究官 (90354464)
NAKAEGAWA Toshiyuki  Meteorological Research Institute, Climate Research Dpt, senior Researcher, 気候研究部, 主任研究官 (20282600)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥11,000,000 (Direct Cost: ¥11,000,000)
Fiscal Year 2006: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2005: ¥7,000,000 (Direct Cost: ¥7,000,000)
KeywordsClimate change / Solar influence
Research Abstract

The purpose of the present study is to demonstrate the solar influence on the troposphere and oceans through stratospheric dynamical processes and to identify its mechanism by conducting observational analyses and numerical model experiments.
1. Atmospheric model experiments
The role of the equatorial QBO in the stratosphere and the difference of the solar impact on the troposphere according to the phase of the QBO were shown by using a Meteorological Research Institute (MRI) chemical climate model and Free University of Berlin (FUB) atmospheric general circulation model. The impact of the change of the stratospheric meridional circulation on the vertical motion of the troposphere was demonstrated by a coordinated model experiment by using the same stratospheric momentum forcings in the MRI and FUB models.
2. Coupled ocean model experiment
To understand the impact of the stratospheric circulation change due to the solar variation on the troposphere and oceans, a momentum forcing experiment is conducted using a MRI coupled ocean model. It was shown that without a change in the solar constant, globally averaged annual mean temperature can be changed about 0.5K.
3. Observational study
By using reanalysis data, the monsoon circulation over the Indian Ocean region was shown to be influenced through change in stratospheric meridional circulation due to the solar cycle. This further lead to a modulation of the relationship between the Indian Ocean Dipole mode and the El Nino/Southern Oscillation in the Pacific sector. As an example of the stratospheric impact modification of the equatorial convective activity, cirrus cloud coverage and precipitation following a stratospheric major warming were shown.
4. International cooperation
SPARC working group on the solar influence through chemical and dynamical processes (SOLARIS) was formed and its first meeting was organized with our collaborators at U.S. National Center for Atmospheric Research in October 2006.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (31 results)

All 2007 2006 2005

All Journal Article (31 results)

  • [Journal Article] Impact of the 2002, Southern Hemisphere, stratospheric warming on the tropical cirrus clouds and convective activity2007

    • Author(s)
      Eeuchi, N., K.Kodera
    • Journal Title

      Geophys. Res. Lett 34, L05819

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Possible modulation of the connection between the pacific and Indian Ocean variability by the solar cycle2007

    • Author(s)
      Kodera K., K.Coughlin, O.Arakawa
    • Journal Title

      Geophys. Res. Lett. 34, L03710

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The role of dynamics in solar forcing2007

    • Author(s)
      Kodera, K
    • Journal Title

      Space Sci. Rev. 125

      Pages: 319-330

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A new look at stratospheric sudden warmings. Part II. Evaluation of numerical model simulations2007

    • Author(s)
      Charlton, J. A. et al.
    • Journal Title

      J. Climate (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Impact of the 2002, Southern Hemisphere, stratospheric warming on the tropical cirrus clouds and convective activity2007

    • Author(s)
      Eguchi, N., K.Kodera
    • Journal Title

      Geophys. Res. Lett. 34

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Possible modulation of the connection between the pacific and Indian Ocean variability by the solar cycle2007

    • Author(s)
      Kodera K., K.Coughlin, O.Arakawa
    • Journal Title

      Geophys. Res. Lett. 34

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] The role of dynamics in solar forcing2007

    • Author(s)
      Kodera, K.
    • Journal Title

      Space Sci. Rev. 125

      Pages: 319-330

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] A new look at stratospheric sudden warmings. Part II. Evaluation of numerical model simulations2007

    • Author(s)
      Charlton, J. et al.
    • Journal Title

      J. Climate (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Solar influence on the tropical stratosphere and troposphere in the northern summer2006

    • Author(s)
      Kodera, K., K.Shibata
    • Journal Title

      Geophys. Res. Lett 33, L19704

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Influence of stratospheric sudden warming on the equatorial troposphere2006

    • Author(s)
      Kodera, K.
    • Journal Title

      Geophys. Res. Lett. 33, L06804

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Stratospheric ozone variation induced by the 11-year solar cycle : Recent 22-year simulation using 3-D chemical transport model with reanalysis data2006

    • Author(s)
      Sekiyama, T. T., et al.
    • Journal Title

      Geophys. Res. Lett 33, L178122

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Assessment of temperature, trace species and ozone in chemistry-climate model simulations of the recent past2006

    • Author(s)
      Eyring, V. et al.
    • Journal Title

      J. Geophys. Res. 111, D22308

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Simulation of anthropogenic change in the strength of the Brewer-Dobson circulation2006

    • Author(s)
      Butchart, N. et al.
    • Journal Title

      Climate Dynamics 27

      Pages: 727-741

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Simulation of solar-cycle modulation of the Southern Annular Mode using a chemistry-climate model2006

    • Author(s)
      Kuroda a, Y., K.Shibata
    • Journal Title

      Geophys. Res. Lett. 33, L05703

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Transfer of the solar signal from the stratosphere to the troposphere : Northern winter2006

    • Author(s)
      Matthes K., Y.Kuroda, K.Kodera, U.Langematz
    • Journal Title

      J. Geophys. Res 111, D06108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Solar influence on the tropical stratosphere and troposphere in the northern summer2006

    • Author(s)
      Kodera, K., K.Shibata
    • Journal Title

      Geophys. Res. Lett. 33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Influence of stratospheric sudden warming on the equatorial troposphere2006

    • Author(s)
      Kodera, K.
    • Journal Title

      Geophys. Res. Lett. 33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Stratospheric ozone variation induced by the 11-year solar cycle : Recent 22-year simulation using 3-D chemical transport model with reanalysis data2006

    • Author(s)
      Sekiyama, T. T. et al.
    • Journal Title

      Geophys. Res. Lett 33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Assessment of temperature, trace species and ozone in chemistry-climate model simulations of the recent pas2006

    • Author(s)
      Eyring, V. et al.
    • Journal Title

      J. Geophys. Res. 111

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Simulation of solar-cycle modulation of the Southern Annular Mode using a chemistry-climate model2006

    • Author(s)
      Kuroda a, Y., K.Shibata
    • Journal Title

      Geophys. Res. Lett. 33

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Transfer of the solar signal from the stratosphere to the troposphere : Northern winter2006

    • Author(s)
      Matthes K., Y.Kuroda, K.Kodera, U.Langematz
    • Journal Title

      J. Geophys. Res. 111

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Stratospheric ozone variation induced by the 11-year solar cycle : Recent 22-year simulation using 3-D chemical transport model with reanalysis data2006

    • Author(s)
      Sekiyama, T.T., K.Shibata, M.Deushi, K.Kodera, J.L.Lean.
    • Journal Title

      Geophys. Res. Lett. 33

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Influence of stratospheric sudden warming on the equatorial troposphere2006

    • Author(s)
      K.Kodera
    • Journal Title

      Geophysical Research Letters 33

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The transfer of the solar signal from the stratosphere to the troposphere : Northern winter2006

    • Author(s)
      Matthes, K.Y.Kuroda, K.Kodera, U.Langematz
    • Journal Title

      Journal of Geophysical Research (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Simulation of solar-cycle modulation of the southern annular mode using a chemistry-climate model2006

    • Author(s)
      Kuroda, Y., K.Shibata
    • Journal Title

      Geophysical Research Letters 33

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Radiative effect of ozone on the quasi-biennial oscillation in the equatorial stratosphere2005

    • Author(s)
      Shibata, K., M.Deushi
    • Journal Title

      Geophys. Res. Lett 32, L24802

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Solar cycle modulation of the Southern Annular Mode2005

    • Author(s)
      Kuroda, Y., K.Kodera
    • Journal Title

      Geophys. Res. Lett. 32, L13802

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Radiative effect of ozone on the quasi-biennial oscillation in the equatorial stratosphere2005

    • Author(s)
      Shibata, K., M.Deushi
    • Journal Title

      Geophys. Res. Lett 32

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Solar cycle modulation of the Southern Annular Mode2005

    • Author(s)
      Kuroda, Y., K.Kodera
    • Journal Title

      Geophys. Res. Lett. 32

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Partitioning between resolved wave forcing and unresolved gravity wave forcing to the quasi-biennial oscillation as revealed with a coupled chemistry-climate model2005

    • Author(s)
      Shibata K., M.Deushi
    • Journal Title

      Geophysical Research Letters 32

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Solar cycle modulation of the southern annular mode2005

    • Author(s)
      Kuroda, Y., K.Kodera
    • Journal Title

      Geophysical Research Letters 32

    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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