A multi-century tree-ring record of spring flooding on the Mississippi River

In this study, we present a novel, annually-resolved tree-ring record of spring flooding based on anatomically anomalous “flood rings” preserved in trees growing about 60 km downstream of the Mississippi and Ohio River confluence. Our chronology records 39 flood-ring years between 1770-2009 including nearly all of the observed significant floods of the 20th century as well as severe floods documented in prior centuries.Therrell, M.D., Bialecki, M.B., A multi-century tree-ring record of spring flooding on the Mississippi River, Journal of Hydrology (2014),
doi: http://dx.doi.org/10.1016/j.jhydrol.2014.11.005

Read More

Dendrochronological potential of Millettia stuhlmannii in Mozambique

This study investigates whether M. stuhlmannii is potentially useful for dendrochronology— that is whether this species forms annual growth rings that are responsive to external forcing such as climate.Results of this study indicate that M. stuhlmannii is a potentially useful species for dendrochronology.Trees DOI 10.1007/s00468-014-1150-7

Read More

Oxygen Isotopes in Tree-Rings in Zimbabwe

Our study has demonstrated that α-cellulose δ18O values in in tree-rings of Pterocarpus angolensis growing in Zimbabwe are accurate recorders of meteoric water δ18O, both seasonal and annual precipitation amounts, and summer mean temperature.

Read More

The Bettersize has landed!

CoRPs members Lisa Davis and Becky Minzoni recently supervised the successful installation of  a Bettersize particle size analyzer for group research. This instrument was funded by UA, the College of Arts and Sciences, and the Geography and Geology Departments based on a collaborative proposal developed by CoRPS. This instrument will radically improve our groups ability

Read More

Paint Rock Forest

Recently visited the Paint Rock Forest Research Center and found it to be truly amazing. The variety of trees there is astounding, and the research being carried out on the forest is world class. I am looking forward to hopefully returning and doing some dendrochronology.

DRL in “Stones and Bones”

Work by the DRL was described in a recent issue of “Stones and Bones” the newsletter of the Alabama Archaeological Society. The article “A Living Witness to the Battle?” by Eric Frey- Park Ranger at Horseshoe Bend National Military Park describes tree-ring dating of and American beech (Fagus grandifolia) tree at the battlefield that predates

Read More

AAG New Orleans

My colleagues and I will be giving talks and hosting sessions on Paleofloods at next weeks AAG meeting. Come hear all about it! Past Perspectives on River Environments 1: Flood Reconstructions in Locations Outside the U.S. Napoleon B2, Sheraton 3rd Floor 08:00 am Past Perspectives on River Environments 2: Flood Reconstructions in the Mississippi River

Read More

Nature paper in UA news

A  UA News feature covers our recent Nature paper on Mississippi River flooding “More than Climate, Engineering Worsening Flooding Along Mississippi” “TUSCALOOSA, Ala. — Through discovering ancient floods along the Mississippi River, a group of scientists, including a University of Alabama professor, found human-led engineering, not climate, is the largest influence on worsening floods.”

Increasing community resilience in coastal watersheds of Alabama…

Super excited that US EPA will be funding our project on streamflow reconstruction in Alabama watersheds (Increasing community resilience in coastal watersheds of Alabama by risk assessment of past, present and future trends in hydrologic and hydroclimatic extremes). It is imperative that Alabama develop a comprehensive state water policy and understanding the long-term variability of

Read More