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Solar and geomagnetic effects on the Northern Hemisphere tropospheric circulation

Project goals

The project deals with the analysis of relationships between the solar / geomagnetic activity and Northern Hemisphere atmospheric circulation. It attempts to answer the following questions: 1. Are the differences in the North Atlantic Oscillation's (NAO)shapes between the solar maxima and minima detectable also by teleconnectivity maps and principal component analysis? 2. Is the difference between the solar maxima and minima pronounced also for other modes of low-frequency circulation variability? 3. Are the differences stable in time? 4. Does the geomagnetic activity have similar effects on the variability modes as the solar activity? 5. Are other manifestations of atmospheric circulation also affected by the solar / geomag. activity? 6. Can the solar / geomagnetic effects on circulation be detected by the phase synchronization methods? 7. Does the stratification of data by the phase of the QBO improve the results? 8. Are some of the effects observable in other seasons than winter?

Keywords

atmospheric circulationmodes of variabilitysolar activitygeomagnetic activity

Public support

  • Provider

    Academy of Sciences of the Czech Republic

  • Programme

    Grants of distinctly investigative character focused on the sphere of research pursued at present particularly in the Academy of Sciences of the Czech Republic

  • Call for proposals

    Výzkumné granty 4 (SAV02004-A)

  • Main participants

  • Contest type

    VS - Public tender

  • Contract ID

    IAA3042401

Alternative language

  • Project name in Czech

    Vlivy sluneční a geomagnetické aktivity na troposférickou cirkulaci severní polokoule

  • Annotation in Czech

    Projekt se zabývá analýzou vztahů mezi sluneční / geomagnetickou aktivitou a projevy cirkulace na severní polokouli. Řeší následující otázky: 1. Je rozdíl v poloze a plošném rozsahu severoatlantské oscilace (NAO) mezi slunečním maximem a minimem detekovatelný pomocí analýzy hlavních složek? 2. Objevuje se rozdíl mezi slunečním maximem a minimem i pro ostatní módy nízkofrekvenční proměnlivosti cirkulace severní polokoule? 3. Jsou tyto rozdíly stabilní v čase? 4. Má geomagnetická aktivita podobný vliv naN A O a další módy proměnlivosti jako sluneční aktivita? 5. Ovlivňuje sluneční / geomagnetická aktivita i další projevy atmosférické cirkulace? 6. Dají se solární a geomagnetické vlivy na atmosférickou cirkulaci detekovat pomocí metody fázové synchronizace? 7. Jaký vliv na výsledky má rozvrstvení dat podle fáze kvazidvouleté oscilace (QBO)? 8. Objevují se některé z výsledků i v jiných sezónách než v zimě?

Scientific branches

  • R&D category

    ZV - Basic research

  • CEP classification - main branch

    DG - Atmospheric sciences, meteorology

  • CEP - secondary branch

  • CEP - another secondary branch

  • 10509 - Meteorology and atmospheric sciences
    10510 - Climatic research

Completed project evaluation

  • Provider evaluation

    V - Vynikající výsledky projektu (s mezinárodním významem atd.)

  • Project results evaluation

    Solar and geomag.activity significantly affect tropospheric circulation in Northern Hemisphere mid latitudes in winter. Solar effect is modulated by QBO phase. Geomag.activity and tropospheric parameters are phase-synchronized with the period of 7.8 yr.

Solution timeline

  • Realization period - beginning

    Jan 1, 2004

  • Realization period - end

    Dec 1, 2007

  • Project status

    U - Finished project

  • Latest support payment

    Feb 27, 2007

Data delivery to CEP

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

  • Data delivery code

    CEP08-AV0-IA-U/02:2

  • Data delivery date

    Jun 28, 2013

Finance

  • Total approved costs

    3,517 thou. CZK

  • Public financial support

    3,042 thou. CZK

  • Other public sources

    475 thou. CZK

  • Non public and foreign sources

    0 thou. CZK

Basic information

Recognised costs

3 517 CZK thou.

Public support

3 042 CZK thou.

86%


Provider

Academy of Sciences of the Czech Republic

CEP

DG - Atmospheric sciences, meteorology

Solution period

01. 01. 2004 - 01. 12. 2007