The rarity of absent growth rings in Northern Hemisphere forests outside the American Southwest

Scott St. George, Toby R. Ault, Max C.A. Torbenson

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We present a synthesis of locally absent (or "missing") growth rings across the Northern Hemisphere based on 2359 publicly available tree ring-width records. During the last millennium, widespread absent rings have been observed only in the southwestern United States and were associated with severe drought. Absent rings were uncommon during the growing seasons that followed major volcanic eruptions, including A.D. 1259 and 1816. Because these features have occurred so rarely in high-latitude and high-elevation tree ring-width records, the hypothesis that the Northern Hemisphere tree ring-width network is compromised by dating errors due to unrecognized absent rings would require that many temperature-limited forest stands in the network exhibited a reaction to cold temperatures that have essentially never been observed anywhere. If however absent-ring formation were to increase in forests outside of the American Southwest, that behavior would represent an unprecedented response to environmental stress.

Original languageEnglish (US)
Pages (from-to)3727-3731
Number of pages5
JournalGeophysical Research Letters
Volume40
Issue number14
DOIs
StatePublished - Jul 28 2013

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rarity
Northern Hemisphere
tree ring
rings
environmental stress
growing season
volcanic eruption
temperature
drought
dating
volcanic eruptions
polar regions
synthesis

Keywords

  • climate change
  • drought
  • geochronology
  • tree rings

Cite this

The rarity of absent growth rings in Northern Hemisphere forests outside the American Southwest. / St. George, Scott; Ault, Toby R.; Torbenson, Max C.A.

In: Geophysical Research Letters, Vol. 40, No. 14, 28.07.2013, p. 3727-3731.

Research output: Contribution to journalArticle

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