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Scandinavian storminess since about 1800

Författare:
Publiceringsår: 2004
Språk: Engelska
Publikation/Tidskrift/Serie: GEOPHYSICAL RESEARCH LETTERS
Volym: 31
Nummer: 20
Dokumenttyp: Artikel
Förlag: American Geophysical Union

Sammanfattning

We study the history of storminess in Northern Europe, as derived from local pressure observations in Lund since 1780 and Stockholm since 1820 ( Sweden). At both stations barometer readings were made three times per day, morning, midday and evening, and after about 1850 at fixed observation hours. We use four common storminess indices: annual number of deep lows ( p < 980 hPa), the annual 95th and 99th percentile of pressure changes between two observations, and the annual number of fast absolute pressure changes (&UDelta;p/&UDelta;t > 16 hPa/12 h). It turns out that the 1980' s - mid 1990' s were a period of enhanced storminess, mainly seen in the Stockholm record, but his period is within the natural variability of the records. Thus, there are no robust signs of any long-term trend in the storminess indices. Storminess is during the entire historical period remarkably stable, with no systematic change and little transient variability.

Disputation

Nyckelord

  • Earth and Environmental Sciences

Övrigt

Published
Yes
  • ISSN: 0094-8276

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