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Dynamical response of the stratosphere to the solar forcing

Research Project

Project/Area Number 15340159
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionMeteorological Research Institute, Japan Meteorological Agency (JMA)

Principal Investigator

KODERA Kunihiko  Meteorological Research Institute, JMA, Climate Research Department, Head, 気候研究部, 室長 (70343887)

Co-Investigator(Kenkyū-buntansha) SHIBATA Kiyotaka  Meteorological Research Institute, JMA, Atmospheric Environment and Applied Meteorology Research Department, Head, 環境・応用気象研究部, 室長 (50354494)
KURODA Yuhji  Meteorological Research Institute, JMA, Climate Research Department, Senior researcher, 気候研究部, 主任研究官 (80343888)
SEKIYAMA Tsuyoshi  Meteorological Research Institute, JMA, Atmospheric Environment and Applied Meteorology Research Department, Researcher, 環境・応用気象研究部, 研究官 (90354498)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥10,600,000 (Direct Cost: ¥10,600,000)
Fiscal Year 2004: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2003: ¥6,500,000 (Direct Cost: ¥6,500,000)
KeywordsSolar influence / International cooperation / Climate chance / Solar UV / Ozone / Stratosphere / Meridional circulation / General circulation / 国際研究者交流 / 中層大気
Research Abstract

Total solar irradiance (TSI) measurements by satellites revealed that the variation in the TSI is only about 0.1%, which is too small to produce any meaningful climatic effects. The ultra-violet part of the solar spectrum shows larger (3-8%) variation and may possible to produce a change in stratospheric circulation. However, such processes involving highly non-linear responses are difficult to identify sole from the observation or by a particular general circulation model studies.
Accordingly, the present study is conducted as a part of an international cooperative study "General Circulation Model Reality Intercomparison Project for SPARC (GRIPS)". In particular, comparison with the Free University of Berlin model as well as observational data, was conducted to elucidate the processes how the solar influence produced in the winter stratopause region can penetrate down to the Earth's surface.
The solar heating in the stratosphere is closely related with the production and destruction of the ozone, so that it is also important to understand the variation of chemical species. To investigate the solar effect on ozone, we conducted a chemical climate model study by imposing the observed solar spectrum variation and wind field.
The results of the present study demonstrate that the solar influence created in the stratopause region by change in solar irradiance and ozone concentration comes down to the troposphere by two processes through i) change in the wave mean-flow interaction in higher latitudes of the winter hemisphere and ii) change in mean meridional (or Brewer-Dobson) circulation induced by the abovementioned wave mean-flow interactions.
From these two processes the mechanism of the solar influence on the North Atlantic Oscillation and the Indian Monsoon activity is explained.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (17 results)

All 2005 2004 Other

All Journal Article (16 results) Publications (1 results)

  • [Journal Article] Simulation of radiative and dynamical resoponses of the middle atmosphere to the 11-year solar cycle2005

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

      J. Atmos. Solar-Terr. Phys. 67

      Pages: 125-143

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Possible solar modulation of the ENSO cycle2005

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

      Pap. Meteorol. Geophys. 55

      Pages: 21-32

    • NAID

      130004484908

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Simulation of radiative and dynamical responses of the middle atmosphere to the 11-year solar cycle2005

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

      J. Atmos. Solar-Terr. Phys. 67

      Pages: 125-143

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Possible solar modulation of the ENSO cycle2005

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

      Pap. Meteorol. Geophys. 55

      Pages: 21-32

    • NAID

      130004484908

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Simulation of radiative and dynamical responses of the middle atmosphere to the 11-year solar cycle2005

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

      J.Atmos.Solar-Terr.Phys. 67

      Pages: 125-143

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Possible solar modulation of the ENSO cycle2005

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

      Pap.Meteorol.Geophys 55

      Pages: 35-54

    • NAID

      130004484908

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A possible mechanism of solar modulation of the spatial structure of the North Atlantic Oscillation2004

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

      J. Geophys. Res. 110

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Solar influence on the Indian Ocean Monsoon through dynamical process2004

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

      Geophys. Res. Lett. 31

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improved 11-year solar signal in the Freie Universitat Berlin Climate Meddle Atmosphere Model (FUB-CMAM)2004

    • Author(s)
      Matthes, K., U.Langematz, L.L.Gray, K.Kodera, K.Labitzke
    • Journal Title

      J. Geophys. Res. 109

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Impact of the SH major stratospheric warming on the Hadley circulation : A case study2004

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

      Pap. Meteorol. Geophys. 54

      Pages: 115-120

    • NAID

      130004785193

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Solar influence on the Indian Ocean Monsoon through dynamical processes2004

    • Author(s)
      Kodera, K
    • Journal Title

      Geophys. Res. Lett.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improved 11-year solar signal in the Freie Universitat Berlin Climate Middle Atmosphere Model (FUB-CMAM)2004

    • Author(s)
      Matthes, K., U.Langematz, L.L.Gray, K.Kodera, K.Labitzke
    • Journal Title

      J. Geophys. Res. 109

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A possible mechanism of solar modulation of the spatial structure of the North Atlantic Oscillation2004

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

      J.Geophys.Res. 110

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Solar influence on the Indian Ocean Monsoon through dynamical processes2004

    • Author(s)
      Kodera, K
    • Journal Title

      Geophys.Res.Lett. 31

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Improved 11-year solar signal in the Freie Universitat Berlin Cliate Middle Atmosphere Model(FUB-CMAM)2004

    • Author(s)
      Matthes, K., U.Langematz, L.L.Gray, K.Kodera, K.Labitzke
    • Journal Title

      J.Geophys.Res. 109

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Impact of the SH major stratospheric warming on the Hadley circulation : A case study2004

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

      Papers.Meteorol.Geophys. 54

      Pages: 115-120

    • NAID

      130004785193

    • Related Report
      2004 Annual Research Report
  • [Publications] Matthes, Langematz, Gray, Kodera, Labitzke: "Improved 11-Year Solar Signal in the FUB-CMAM"Journal of Geophysical Research. 109(D6). 10.1029/2003JD004012 (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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