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Earth Institute Research Projects

Tree-Rings & Climate

Lead PI: Laia Andreu Hayles

Unit Affiliation: Biology and Paleo Environment, Lamont-Doherty Earth Observatory (LDEO)

June 2011 - October 2013
Inactive
Global
Project Type: Research

DESCRIPTION: To reduce uncertainties in climate reconstructions the team will: 1) assess climate change impacts on forests to predict future responses using tree ring growth models; 2) explore stable isotopes as a key for the divergence problem; 3) develop more reliable paleoclimate reconstructions by combining tree-ring parameters and non tree-ring archives.

OUTCOMES: 233 samples taken from 31 living and 84 subfossil trees in Alaska have been examined. There is a significant trend towards wider rings after 1900 and even more so after 1950. Tree-ring width corresponds with natural radiative forcing until 1900. Two peer-reviewed journals published.

SPONSOR:

Institut Catala de Ciencies del Clima

ORIGINATING SPONSOR:

European Commission

FUNDED AMOUNT:

$27,206

EXTERNAL COLLABORATORS:

Institut Catala de Ciencies del Clima

KEYWORDS

ocean and climate physics stable isotopes tree rings paleoclimate