News

Sheppard holding the award plaque

Outstanding Forester of the Year award to Paul Sheppard

Thursday, June 9, 2016

Outstanding Forester of the Year award to the LTRR's Paul Sheppard.

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Coulthard examining a freshly extracted tree-ring core sample.

Tree Rings reveal the history of severe drought in British Columbia

Friday, May 6, 2016

Tree rings reveal the history of severe drought in parts of British Columbia.

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still image from the video interview

Valerie Trouet interviewed on Zona Politics

Friday, April 29, 2016

LTRR researcher Valerie Trouet talks about dendrochronology in a local TV interview.

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The elgant conference logo, turning the map of the Americas into a tree.

LTRR featured in international awards

Friday, April 15, 2016

The LTRR featured prominently in awards distributed at the Ameridendo2016 conference in Argentina.

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Canyon walls near Nankoweap reflected in a calm stretch of the river

Temperature affects Upper Colorado River Basin streamflow

Thursday, March 10, 2016

Connie Woodhouse and Kiyomi Morino of the LTRR are authors on a paper showing that temperature modulates the influence of rain and snowfall on Upper Colorado River Basin streamflow.

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Open stand of Pinus elliottii var. densa | Hurricane Katrina before landfall

Shipwrecks and tree ring evidence: fewer hurricanes when the sun was less active

Tuesday, March 8, 2016

Valerie Trouet of the LTRR and her colleagues use shipwrecks and tree rings to trace the history of hurricanes, finding fewer during a period of low solar activity.

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Artemio: an open stand of Pinus nigra, at ca. 1815 m.

LTRR researchers mapping the history of Medirerranean drought

Monday, March 7, 2016

LTRR researchers Kevin Anchukaitis, Ramzi Touchan and David Meko are co-authors on a paper mapping drought in the Mediterranean over the past 900 years.

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Summer 2016 Dendro Short Courses

Tuesday, February 2, 2016

Come to the University of Arizona for intensive summer tree-ring courses.

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Pages from the current issue of the Tree-Ring Times newsletter

Tree-Ring Times revived

Monday, December 21, 2015

The Tree-Ring Lab has resumed its departmental newsletter after a long hiatus.

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Map of Chaco Canyon and its possible wood sources

Tree rings show where the trees used for Chaco Canyon great house timbers grew

Thursday, December 10, 2015

The dendro-provenancing technique shows where the trees used for Chaco Canyon great house timbers grew, and how this source area changed in the eleventh century.

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UA Family Weekend - Tours and Exhibit Hall Open

UA Family Weekend Tours & Exhibits

Tuesday, September 29, 2015

Our Exhibit Hall will be open on Saturday, October 10 from 9AM-Noon for UA Family Weekend. Come join the fun!

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oak in California

Smallest Sierra snowpack in the past 500 years

Monday, September 14, 2015

LTRR researchers Soumaya Belmecheri and Valerie Trouet are lead authors of a study showing the current Sierra Nevada snowpack to be the smallest in 500 years.

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