Friday, April 2, 2021

Tree ring research provides clues to reconstruct climate

A doctoral student who used facilities at the Fairbanks Experiment Farm to study driftwood logs used in ancient houses in northwest Alaska presented her research at the 21st World Wood Day Virtual Symposium March 21-23.

Archeological timbers were found at
several sites in Northwest Alaska.

Emeritus Professor Glenn Juday said Juliette Taïeb completed tree ring work in 2018 using his lab and wood-handling facilities at the experiment farm.

Her presentation was titled "Climatic value of Thule architectural wood remains from northwestern Alaska (AD 850-1650): a dendroarchaeological approach,"  which she co-authored with Juday and other members of her doctoral committee. Taïeb is studying at the University of Paris Pantheon Sorbonne.

The tree ring research involved the study of driftwood logs used in ancient houses at several sites on the northwest coast of Alaska and the Seward Peninsula area, including old Kotzebue.

Juday described highlights of the research. “We have successfully cross-dated dozens of archeological timbers that now have dramatically improved the sample numbers of ring width chronologies that are available to reconstruct climate from 1000 AD to 1650s AD. Previously only one or two trees contributed to the reconstruction of a few of the early centuries, making the reconstructions weak or suspect. Juliette also extended the cross-dated tree ring chronology back to AD 812, over one additional century from what was available previously.”

She will join Juday and another committee member, Claire Alix, for a joint presentation at the annual meeting of the Society of American Archeology (online) April 15-17.

 

 

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