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Titolo:
Interannual variability of winter precipitation in northern Iberian Peninsula
Autore:
Saenz, J; Zubillaga, J; Rodriguez-Puebla, C;
Indirizzi:
Univ Pais Vasco, Dept Fis Aplicada 2, E-48080 Bilbao, Spain Univ Pais Vasco Bilbao Spain E-48080 s Aplicada 2, E-48080 Bilbao, Spain Univ Pais Vasco, Dept Fis Mat Condensada, E-48080 Bilbao, Spain Univ Pais Vasco Bilbao Spain E-48080 t Condensada, E-48080 Bilbao, Spain Univ Salamanca, Fac Ciencias Fis, Dept Fis Atmosfera, E-37008 Salamanca, Spain Univ Salamanca Salamanca Spain E-37008 mosfera, E-37008 Salamanca, Spain
Titolo Testata:
INTERNATIONAL JOURNAL OF CLIMATOLOGY
fascicolo: 12, volume: 21, anno: 2001,
pagine: 1503 - 1513
SICI:
0899-8418(200110)21:12<1503:IVOWPI>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SINGULAR-VALUE DECOMPOSITION; ATLANTIC OSCILLATION; CLIMATE VARIABILITY; STORM TRACK; PART-II; CIRCULATION; PATTERNS; RAINFALL; EUROPE; SPACE;
Keywords:
baroclinic activity; Cantabrian; Eady growth; EOF analysis; Iberian Peninsula; Kolmogorov-Zurbenko filter; winter precipitation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Saenz, J Univ Pais Vasco, Dept Fis Aplicada 2, Apdo 644, E-48080 Bilbao, Spain Univ Pais Vasco Apdo 644 Bilbao Spain E-48080 8080 Bilbao, Spain
Citazione:
J. Saenz et al., "Interannual variability of winter precipitation in northern Iberian Peninsula", INT J CLIM, 21(12), 2001, pp. 1503-1513

Abstract

Observational series of winter precipitation in the eastern part of the Cantabrian coast in the northern Iberian Peninsula are studied. This rather small area shows a clearly different interannual variability to the rest of the Peninsula. Series of winter precipitation for the whole area are defined using principal component (PC) analysis and they reflect the variability that can be attributed to changes in atmospheric circulation around the area. This variability is physically explained on the basis of the structure of baroclinic activity and vertically integrated moisture transports over the area derived from the NCEP/NCAR Reanalysis project. According to them. the leading PC of winter precipitation represents the overall precipitation over the area. Wet phases of this PC are associated to an increase of baroclinic activity leaving the eastern part of the Atlantic storm track and entering the Mediterranean basin. Conversely. dry phases show a strong reduction of baroclinic activity over the region. The second PC is linked to meridional water vapour transports over the area. which are affected by the topography of the region. Copyright (C) 2001 Royal Meteorological Society.

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Documento generato il 31/03/20 alle ore 03:34:17