Trends of storms in NW Europe derived from an updated pressure data set

Climate Research

Torben Schmith¹  Heikki Tuomenvirta¹  Knut Iden¹  Hans Alexandersson¹ 

关键词: Geostrophic winds;    Storm statistics;    Storm trends;    Northwestern Europe;   

DOI  :  10.3354/cr014071

来源: Inter-Research Science Publishing

【 摘 要 】

ABSTRACT: Within the WASA project (von Storch et al. 1998; Bull Am Meterol Soc 79(5):741-760) an extensive data set containing station pressure values was used to calculate geostrophic winds (Alexandersson et al. 1998; Global Atmos Ocean Syst 6:97-120).Geostrophic winds were analysed in terms of percentiles to give a measure of long-term variations in synoptic-scale storminess. In this paper an update to 1998 is presented. In the Scandinavia, Finland and Baltic Sea area the most recent years, especiallythe cold and calm year 1996, seem to have brought an end to the stormy period centred on 1990. In the more westerly British Isles, North Sea and Norwegian Sea area, storminess is still at high levels compared with the less intense period between 1930 and1980. The long-term increasing trend in NW Europe storminess that started in the 1960s seems to have been broken.

【 授权许可】

Unknown