Our research focuses on developing and analyzing high-resolution proxy records of past spatiotemporal climate and paleoenvironmental variability. We use proxy system and climate models and a diverse set of statistical techniques in order to further refine and enhance our understanding of past, present, and future climate and environmental changes. We specialize in dendroclimatology, multiproxy paleoclimatology, and climate field reconstructions.
If you'd like to join us, check out the Opportunities
- Our new paper in Quaternary Science Reviews provides multiple lines of evidence that Ilopango volcano in El Salvador was the source of the colossal 540 CE eruption.
- We're excited to welcome Dr. Nick Gauthier to the Past Landscapes Lab as a new Postdoctoral Research Scientist!
- We've got a new paper in The Holocene on 'Improved dendroclimatic calibration using Blue Intensity for white spruce in the southern Yukon' led by Rob Wilson
- Congratulations to Dr. Jessie Pearl who successfully defended her Ph.D. dissertation - Reconstructing Late Holocene Climate and Coastal Evolution for the Northeastern United States - in May!
- Columbia University graduate student Mukund Rao leads a new paper describing a double bootstrapping procedure for evaluating the significance of superposed epoch analyses
- We have a new paper, led by Ed Cook, reconstructing the North Atlantic Oscillation (NAO) over the last millennium. We show that there is no persistent positive NAO during Medieval times, that that reconstruction is consistent with a stochastically forced process, and that climate models can simulate the spectra of this process.
- Laia Andreu-Hayles leads a tour-de-force paper describing the complete process for tree-ring isotope analysis developed at the Lamont-Doherty Earth Observatory.
- Kathy Allen leads a new paper in Climate Dynamics on 'Tree-ring reconstructions of cool season temperature for far southeastern Australia'
- Led by Andy Bunn, we've got a new paper in Geophysical Research Letters investigating the spatial and temporal variability in the climate response of bristlecone pines
- Congratulations to Dr. Gloria Jimenez, who successfully defended her dissertation, Reconstructing Tropical Pacific Climate Variability from Coral Archives on November 14th!
- Exciting news! Bethany Coulthard will be joining the Department of Geosciences at UNLV in January 2019 as a new Assistant Professor!
- We have a new paper out (led by Jan Esper) reviewing and assessing Northern Hemisphere tree-ring temperature reconstructions over the last millennium.
- Kevin was awarded a Udall Fellowship to develop new research on the co-production of knowledge about the interactions between climate variability, indigenous forest management, and watershed protection in Guatemala
- Ben Cook leads a new paper in Current Climate Change Reports (with Kevin as coauthor) reviewing drought past, present, and future.
- Kris Karnauskas leads a new paper (with Kevin as coauthor) on changes in aridity for island nations under 1.5 and 2C warming.
- Talia Anderson leads a new paper on the climate response and potential vulnerability of Guatemalan Fir forests in the western highlands of Guatemala.
- We're also excited to welcome Jonathan King to the Past Landscape Lab in autumn of 2018. Jonathan is completing his Masters in the Department of Geosciences here at the University of Arizona and will start dissertation work using data assimilation approaches to paleoclimate reconstruction and application of paleoclimate knowledge to challenges at the food-energy-water nexus
- We're excited to welcome Julie Edwards to the Past Landscape Lab in summer of 2018. Julie comes to us from UCLA and will be working on comparing climate reconstructions and climate model simulations to better understand paleoclimate dynamics
- Bethany was interviewed in the Financial Post (Canada) about the impact of climate change on water resources in British Columbia.
- Jessie Pearl is the recipient of a 2018-2019 P.E.O. Scholar Award from P.E.O. International!
- Kevin has a new paper out (led by Amy Hessl) on past, present, and future drought in Mongolia.
- Jessie Pearl is a coauthor on a new publication in Tree-Ring Research led by Mariano Amoroso titled 'South American Dendroecological Fieldweek 2016: Exploring Dendrochronological Research in Northern Patagonia'
- Caroline Leland from the Lamont-Doherty Earth Observatory leads a new paper (Kevin is a co-author) on strip-bark morphology in Siberian pine trees from central Mongolia.
- Gloria Jimenez has a new paper in Geophysical Research Letters on warming in the eastern tropical Pacific as reflected in corals from the Galapagos. Here is the University of Arizona press release.
- A new short documentary film by filmmaker and photographer Mari Cleven about our tree-ring research in Guatemala is now available from the University of Arizona's Office of Research, Discovery, and Innovation