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

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Abstract

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.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Probability Theory and Statistics
  • Geology
  • Water Engineering

Keywords

  • maximum daily annual discharge, River Angermanalven, quantitative flood reconstruction, mid-central Sweden, 2000-year record, Gumbel, varve thickness
Original languageEnglish
Pages (from-to)23-35
JournalJournal of Hydrology
Volume263
Issue number1-4
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes