Twentieth-century summer warmth in northern Yakutia in a 600-year context

M. K. Hughes, E. A. Vaganov, S. Shiyatov, R. Touchan, G. Funkhouser

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

We report unusual twentieth-century early-summer warmth recorded by larch tree-rings at the northern tree-line in far northeastern Eurasia (Yakutia). The tree-ring series are strongly replicated and well suited to the detection of fluctuations on interannual to century timescales. They are strongly correlated with local instrumental temperature data. Mean early-summer temperature in the twentieth century significantly exceeds that of any period of the same length since AD 1400. A century-scale trend, which commences in the mid-nineteenth century, is superimposed on interannual and decadal fluctuations, for example a marked cooling since 1978. While many of the 20 coolest early summers in the reconstruction occur within a few years after major explosive volcanic eruptions from low-latitude volcanoes, several of the 20 warmest early summers followed major explosive eruptions from high-latitude volcanoes.

Original languageEnglish (US)
Pages (from-to)629-634
Number of pages6
JournalHolocene
Volume9
Issue number5
DOIs
StatePublished - Jan 1 1999

Keywords

  • Dendrochronology
  • Larch
  • Larix cajanderi
  • Ring width
  • Summer temperature
  • Volcanic activity
  • Yakutia

ASJC Scopus subject areas

  • Global and Planetary Change
  • Archaeology
  • Ecology
  • Earth-Surface Processes
  • Palaeontology

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