While doing fieldwork in the Pindos Mountains in Greece, Soumaya, Matt, and Valerie were involved in the sampling of Europe's oldest known living tree: a 1075-year old Bosnian pine (Pinus heldreichii). The field expeditions were led by Paul Krusic from Stockholm University and were in collaboration with Jan Esper's group at the University of Mainz.
read more about our discovery here in the Washington Post and CNN has posted a short video.
Paul Szejner published the first paper from his PhD in JGR-Biogeosciences. He and his collaborators (including Soumaya, Flurin, and Valerie) find differential climatic influences of the North American Monsoon system on tree-ring 13C and 18O.
In collaboration with Noah Charney and Brian Enquist (UA EEB), Margaret Evans and David Frank (LTRR), and Ben Poulter and Sydney Record, we (Flurin and Valerie) have published a new paper in Ecology Letters. In this paper, we use a North America-wide tree-ring network to forecast climate impacts on future forest growth.
Raquel Alfaro Sánchez is joining the Trouet Lab as a post-doctoral research associate in August 2016. She will be working on the tree-ring based reconstruction of jet stream indices and on linking the North American Monsoon to isotopic tree-ring data. Welcome to the team Raquel!
Valerie talks about shipwrecks, tree rings, and hurricanes on Inside Higher Ed's Academic Minute.
Our recent paper in PNAS is now featured in the Atlas of Science
Ross is the LTRR nominee for the UA College of Science student award for service. Congrats Ross!
Matt will be presenting results from our Widdringtonia cedarbergensis project at TRACE2016 in Bialowieza, Poland from May 11-15.
Valerie was recently interviewed by Jim Nintzel on Zona Politics. In the short interview, she talks about tree rings, shiwrecks, hurricanes, and snow. The interview was aired on May 1st on CW Tucson.
We have a new paper out in the Proceedings of the National Academy of Sciences (PNAS) today:
In this study, we used a combination of tree-ring data and historical shipwreck data to show that Tropical Cyclone activity in the Caribbean was distinctly suppressed during the Maunder Minimum (1645–1715 CE), a period when solar irradiance was severely reduced. This solar fingerprint on decadal-scale Caribbean TC variability implies modulation by a combination of basin-wide climatic phenomena. Our findings highlight the need to enhance our understanding of the response of atmospheric circulation patterns to radiative forcing and climate change to improve the skill of future TC projections.
You can find the paper here: http://www.pnas.org/content/early/2016/03/02/1519566113
and a Washington Post piece on it here: https://www.washingtonpost.com/news/energy-environment/wp/2016/03/07/what-these-ancient-shipwrecks-could-be-telling-us-about-climate-change/