Late-Holocene flooding and drought in the Northern Great Plains, USA, reconstructed from tree rings, lake sediments and ancient shorelines

Mark D Shapley, W. C. Johnson, D. R. Engstrom, W. R. Osterkamp

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

During the AD 1990s the Waubay Lakes complex in eastern South Dakota experienced historically unprecedented high water levels. Property damage from this flooding led to an examination of the occurrence of past pluvial episodes and their relation to climate. A 1000-year hydroclimate reconstruction was developed from local bur oak (Quercus macrocarpa) tree-ring records and lake-sediment cores. Analysis of lake shoreline and drainage features provides late-Quaternary geomorphic context for this high-resolution record. Tree-ring width and shell geochemistry of the ostracode Candona rawsoni show marked coherence, indicating synchronous responses to moisture balance in vegetation and lake salinity; geomorphic evidence suggests buffering of lake-system expansion during pluvial periods by evaporative dynamics. Pluvial periods display a recurrence frequency of approximately 140-160 years over the past millennium. Prior to AD 1800, both lake highstands and droughts tended towards greater persistence than during the past two centuries. Frequency and timing of hydroclimatic oscillations show strong similarities to records from other sites in the Northern Great Plains (NGP) of North and South Dakota, and incomplete coherence with records of southern Manitoba.

Original languageEnglish (US)
Pages (from-to)29-41
Number of pages13
JournalHolocene
Volume15
Issue number1
DOIs
StatePublished - Jan 2005

Bibliographical note

Funding Information:
. South Dakota State Geological Survey Report of Investigations no. 25 , 30 - 30 pp. Sieg, C.H. and Meko, D. 1995 : Tree-ring collections in the northern Great Plains in 1991 and 1992 . Appendix to Final Project Report to the National Science Foundation for Grants ATM-9016901 and ATM-9017155. Smith, A.J. 1993 :

Keywords

  • Candona rawsoni
  • Drought
  • Floods
  • Great Plains palaeoclimate
  • Ostracode geochemistry
  • Quercus macrocarpa
  • Shoreline geomorphology
  • South Dakota
  • Tree rings
  • Waubay Lakes

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