Modes of low-frequency circulation variability in the Southern Hemisphere

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F14%3A00426817" target="_blank" >RIV/68378289:_____/14:00426817 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modes of low-frequency circulation variability in the Southern Hemisphere

Popis výsledku v původním jazyce

In the Northern Hemisphere (NH), the modes of variability of tropospheric circulation on intra-seasonal timescales also referred to as teleconnections) were described in detail several decades ago. Somewhat surprisingly, a similar description for the Southern Hemisphere (SH) is lacking, a possible reason for this being that the atmospheric circulation in the SH is more transient and less stationary than in the NH, which may have downplayed the importance of the modes for the description of the SH circulation. The only three exceptions that have been described and discussed in detail, including the temporal changes and effects on surface climate elements, are the Southern Annular Mode and two Paci?c-South American modes. In the contribution, we presentan overview of all the modes of the low-frequency circulation variability in the Southern Hemisphere extratropics, in all seasons, detected by rotated principal component analysis of monthly mean values of 500 hPa heights.

Název v anglickém jazyce

Modes of low-frequency circulation variability in the Southern Hemisphere

Popis výsledku anglicky

In the Northern Hemisphere (NH), the modes of variability of tropospheric circulation on intra-seasonal timescales also referred to as teleconnections) were described in detail several decades ago. Somewhat surprisingly, a similar description for the Southern Hemisphere (SH) is lacking, a possible reason for this being that the atmospheric circulation in the SH is more transient and less stationary than in the NH, which may have downplayed the importance of the modes for the description of the SH circulation. The only three exceptions that have been described and discussed in detail, including the temporal changes and effects on surface climate elements, are the Southern Annular Mode and two Paci?c-South American modes. In the contribution, we presentan overview of all the modes of the low-frequency circulation variability in the Southern Hemisphere extratropics, in all seasons, detected by rotated principal component analysis of monthly mean values of 500 hPa heights.

Druh

O - Ostatní výsledky

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/7AMB12AR019" target="_blank" >7AMB12AR019: Vlivy proměnlivosti sluneční aktivity na atmosférickou cirkulaci jižní polokoule a jihoamerické klima v časových měřítkách roků až tisíciletí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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