The relationship between annual varve thickness and maximum annual discharge (1909-1971)

Summary, in English

Annually laminated (varved) sediments from the River Angermanalven, mid-central Sweden, have been used to construct an annual 2000-year long record of varve thickness. Maximum daily annual discharge and mean varve thickness for the years 1909-1971 are significantly correlated (r = 0.87). A relationship between maximum daily annual discharge for the observed period (1909-1971) and varve thickness was determined. The return time of two exceptionally thick varves in the 2000-year long record at the years 658 and 492 AD were estimated and their likelihood estimated based on a Gumbel frequency analysis. (C) 2002 Elsevier Science B.V. All rights reserved.

• Författare: Mikkel Sander; Lars Bengtsson; Björn Holmquist; B Wohlfarth; I Cato
• Avdelning/ar: Kvartärgeologi; Avdelningen för Teknisk vattenresurslära; Statistiska institutionen
• Publiceringsår: 2002
• Språk: Engelska
• Sidor: 23-35
• Publikation/Tidskrift/Serie: Journal of Hydrology
• Volym: 263
• Issue: 1-4
• Länkar: http://dx.doi.org/10.1016/S0022-1694(02)00030-6
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Probability Theory and Statistics; Geology; Water Engineering
• Nyckelord: maximum daily annual discharge; River Angermanalven; quantitative flood reconstruction; mid-central Sweden; 2000-year record; Gumbel; varve thickness
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0022-1694