Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Raimund Muscheler

Raimund Muscheler

Professor

Raimund Muscheler

Solar forcing of climate during the last millennium recorded in lake sediments from northern Sweden

Författare

  • Ulla Kokfelt
  • Raimund Muscheler

Summary, in English

We report on a sediment record from a small lake within the subarctic wetland complex Stordalen in northernmost Sweden covering the last 1000 years. Variations in the content of minerogenic material are found to follow reconstructed variations in the activity of the Sun between the 13th and 18th centuries. Periods of low solar activity are associated with minima in minerogenic material and vice versa. A comparison between the sunspot cycle and a long instrumental series of summer precipitation further reveals a link between the 11 yr solar cycle and summer precipitation variability since around 1960. Solar minima are in this period associated with minima in summer precipitation, whereas the amount of summer precipitation increases during periods with higher solar activity. Our results suggest that the climate responds to both the 11 yr solar cycle and to long-term changes in solar activity and in particular solar minima, causing dry conditions with resulting decreased runoff.

Avdelning/ar

  • Kvartärgeologi
  • MERGE: ModElling the Regional and Global Earth system
  • BECC: Biodiversity and Ecosystem services in a Changing Climate

Publiceringsår

2013

Språk

Engelska

Sidor

447-452

Publikation/Tidskrift/Serie

The Holocene

Volym

23

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

SAGE Publications

Ämne

  • Geology

Nyckelord

  • climate
  • lake sediments
  • minerogenic material
  • precipitation
  • runoff
  • solar activity

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0959-6836