Premium
The rarity of absent growth rings in Northern Hemisphere forests outside the American Southwest
Author(s) -
George Scott St.,
Ault Toby R.,
Torbenson Max C. A.
Publication year - 2013
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/grl.50743
Subject(s) - northern hemisphere , dendrochronology , southern hemisphere , volcano , latitude , geology , physical geography , low latitude , western hemisphere , geography , paleontology , climatology , economic geography , geodesy
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.