Cyrkulacja atmosferyczna nad Europą na powierzchni izobarycznej 500 hPa. Cz. 1 Zima

• Autorzy: Wibig J.

Warianty tytułu

EN

Atmospherical circulation over Europe at 500 hPa isobaric level. Pt. 1 Winter

• Języki publikacji: PL

Abstrakty

EN

To describe circulation fields in winter months the sets of mean monthly values of 500 hPa geopotential heights in grid points over Europe and North Atlantic were transformed into a new sets orthogonal principal components. The principal component analysis together with varimax rotation were used. Maps of correlation coefficients between a few most important components and original time series present circulation types. Four types present in all months were distinguished. There were the NAO, the scandinavian, the east-european and the blocking type. Also one type present only in December - the east-atlantic one - was distinguished. The NAO type is represented by dipol with one centre of high negative correlations over subpolar region of Atlanitc and the second centre of high positive correlations over subtropical Atlantic. It is closely connected with activities of Icelandic Low and Azorian High, which is confirmed by strong correlations with NAO index by Hurrell (1996). Dipol is also characteristic for east-european type with one centre of correlations over East Europe near Black Sea and the second one over West Europe or British Isles. Remaining type are represented by singular centres of high correlations; in scandinavian type it is over northern part of Scandinavian Peninsula, in blocking type it is over Central Europe and in east Atlantic type it is over eastern part of North Atlantic.

Słowa kluczowe

PL

cyrkulacja atmosferyczna; metoda składowych; kryterium Kaisera

• Wydawca: Polskie Towarzystwa Geofizyczne ; Komitet Geofizyki PAN
• Czasopismo: Przegląd Geofizyczny
• Rocznik: 1999
• Tom: Z. 1-2
• Strony: 15--24
• Opis fizyczny: tab., wykr., bibliogr. 16 poz.

Twórcy

autor

Wibig J.

• Zakład Meteorologii i Klimatologii UŁ