Scott T. Allen

PhD Student

School of Renewable Natural Resources

Louisiana State University

Research Interests


Watershed Hydrology


Environmental Physics

Forest Ecology and Ecophysiology



I am researching both the effect of flooding on vegetation water-use, and the effect of vegetation on energy and water fluxes. I am particularly interested in wetland environments where flooding is a frequent stressor. These components will be integrated to investigate the behavior resulting from the interaction between these processes. Currently Im using a diversity of tools to approach these challenging topics, including stable isotopes, dendrochronology, eddy covariance and energy balance methods, remote sensing, sapflow measurement, simulation modeling, as well as tradional forestry and hydrology field methods.



PhD Student in Renewable Natural Resources (conc. In Watershed Sciences)

Louisiana State University, Baton Rouge LA

Advisor: Richard F. Keim


M.S. in Water Resource Engineering (2012)

College of Forestry

Oregon State University, Corvallis OR

Co-advised by: Barbara J. Bond, Jeffrey J. McDonnell


B.S. in Environmental Science and Policy (2009)

University of Maryland, College Park



Peer Reviewed Publications

Allen ST, Whitsell M, Keim RF. Leaf Area Allometrics and Morphometrics in Baldcypress. 2015 (Published Online/ In press).

Allen ST, Keim RF, McDonnell JJ. 2015. Influences of canopy interception on spatial patterns of throughfall isotopic composition at the event and seasonal scale. Journal of Hydrology 522, 58-66.

Allen ST, Brooks JR, Keim RF, Bond BJ, McDonnell JJ. 2014. The role of pre-event canopy storage in throughfall and stemflow by using isotopic tracers. Ecohydrology 7(2), 858-868. DOI: 10.1002/eco.1408. This is the pre-peer reviewed version of the above article

Lemon MGT, Allen ST, Edwards BL, King SL, Keim RF. In review. Satellite Derived Temperature for Monitoring Water Status in a Floodplain Forest of the Upper Sabine River, Texas


Conference Proceedings Publications

Allen ST, Cochran, JW, Krauss KW, Keim RF, King SL. 2015. Hydrologic effects on diameter growth phenology for Celtis laevigata and Quercus lyrata in the floodplain of the lower White River, Arkansas. Proceedings of the 18th Biennial Southern Silviculture Research Conference, Knoxville TN. In press.

Allen ST, Keim RF, McDonnell, JJ. Isotopic Sampling error due to throughfall spatial variability. Proceedings from the USGS-CUAHSI Virtual Workshop on Laser Specs for Field Hydrology and Biogeochemistry: Lessons Learned and Future Prospects, 2/28/2014. In Press.

Allen ST, Edwards BE, Reba ML, Keim RF. 2014. Measurement of sub-canopy evaporation in a flooded forest. Evapotranspiration: Challenges in Measurement and Modeling from Leaf to the Landscape Scale and Beyond Conference Proceedings, 7-10 April 2014, Raleigh, North Carolina. DOI:10.13031/et.1815545



Lemon MG, Keim RF, King SL, Edwards B, Allen ST. 2015. Investigation of the spatial distribution of water stress in bottomland hardwoods using 12 years of MODIS thermal infrared imagery. Big Thicket Science Conference: Biodiversity and ecology of the west gulf coastal plain landscape. Nacogdoches, Texas. April 17-19, 2015.

Allen ST, Cochran, JW, Krauss KW, Keim RF, King SL. 2015. A comparison of intra-annual radial growth of two dominant bottomland hardwood species across a hydrologic gradient. 8th Biennial Southern Silviculture Research Conference, Knoxville TN. March 4th, 2015.

Allen ST, Cochran, JW, Edwards B, Keim RF, King SL, Krauss KW. 2014. Hydrologic Controls over Water Use in a Forested Floodplain Wetland. American Geophysical Union, Fall Meeting, Dec. 19, 2014

Hsueh Y, Keim RF, Krauss KW, Allen ST, Chambers JL. 2014. Tree responses to hummock hydrology in a forested coastal swamp. American Geophysical Union, Fall Meeting, Dec. 19, 2014




Subcanopy ET is being measured through various methods. We are interested how it acts in relationship to phenological variations and relates to total ET. More to take place soon in coastal SC in conjunction with sap flow measurements.

What controls baldcypress growth? What constitutes flood stress? How does stand density affect growth? At what threshold does a stand shift from competition limited to physiologically limited?

Right Arrow: Transition from June to August

Wetland Forest Growth Model Can we parameterize a growth model developed in uplands to function in wetlands?

How is water use and tree functioning affected by water table variations in floodplain wetlands with extreme seasonality?

How do canopy processes affect throughfall amount and physical property variation (The role of pre-event canopy storage in throughfall and stemflow by using isotopic tracers)