Todd C. Rasmussen
Professor of Hydrology & Water Resources

Warnell School of Forestry and Natural Resources
University of Georgia, Athens 30602-2152
trasmuss@uga.edu - curriculum vitae

Specialization. Fluid flow and contaminant transport through surface and subsurface environments, focusing on the physical, chemical, mathematical, and statistical description and quantification of hydrologic processes.

Courses Taught

Fall term Introduction to Water Resources - CRSS(WASR) 1020
Quantitative Methods in Hydrology - WASR 4500/6500
Spring term Soils and Hydrology - CRSS(FANR) 3060
Environmental Characterization - CRSS(WASR) 4660L/6660L
Even years: Aquifer Mechanics - WASR(GEOL) 8730
Odd years: Hydrologic Modeling - GEOL(WASR) 8740
Maymester Hydrology, Geology and Soils of Georgia - WASR 4700L/6700L

Publications

Additional Resources

Green Roofs

  • JAWRA2006.pdf - Hydrologic behavior of vegetated roofs
  • GWRC2007b.pdf - Vegetated roofs: Performance and policy in Athens, GA
  • GWRC2005c.pdf - Use of Green Roofs for ultra-urban stream restoration in the Georgia Piedmont (USA)

Runoff Curve Numbers

  • ASCE2012a.pdf - Runoff Curve Numbers for 10 small forested watersheds in the mountains of the Eastern United States
  • ASCE2012b.pdf - Curve Numbers for nine mountainous Eastern United States watersheds: Seasonal variation and forest cutting
  • GWRC2007a.pdf - Effects of seasonal variation on runoff Curve Number for selected watersheds of Georgia - Preliminary study

Lake Water Quality

  • GWRC2015a.pdf - Small reservoir impacts on stream water quality in agricultural, developed, and forested watersheds: Georgia Piedmont, USA
  • GWRC2007d.pdf - Internal loading in Southeastern Piedmont impounts
  • EMS2006.pdf - A biogeochemical model for metabolism and nutrient cycling in a Southeastern Piedmont impoundment
  • JEQ2005.pdf - Multivariate statistical characterization of water quality in Lake Lanier, Georgia, USA
  • GWRC2003b.pdf - The role of transported sediment in the cycling of phosphate in Georgia piedmont impoundments
  • GWRC2001a.pdf - Phosphorus binding by iron-rich soil in the Southeastern Piedmont: Implications for point and non-point sources of phosphorus
  • GWRC2001b.pdf - Phosphorus cycling in Southeastern Piedmont lakes: An alternative pathway
  • GWRC2001f.pdf - Short-term and long-term sediment and phosphorus inputs to Lake Lanier
  • GWRC1999b.pdf - Water quality dynamics in Lake Lanier

Water Quality

  • JHRS2016.pdf - Delineating groundwater/surface water interaction in a karst watershed: Lower Flint River Basin, southwestern Georgia, USA
  • GWRC2015b.pdf - A study of chloride and rhodamine dye tracer movement through an urban stream and raingarden
  • GWRC2015c.pdf - Water quality of episodic flow through isolated wetlands embedded in a Long-Leaf Pine / Wiregrass ecosystem
  • JEQ2014.pdf - Nitrogen in stored poultry litter: Uric acid and xanthine
  • JH2012a.pdf - Advances in variable selection methods I: Causal selection methods versus stepwise regression and principal component analysis on data of known and unknown functional relationships
  • JH2012b.pdf - Advances in variable selection methods II: Effect of variable selection method on classification of hydrologically similar watersheds in three Mid-Atlantic ecoregions
  • GWRC2011b.pdf - Beyond correlation: The search for causal relationships between flow percentiles and watershed variables
  • GWRC2011c.pdf - Coupling tritium release data with remotely sensed precipitation data to assess model uncertainties
  • GWRC2009a.pdf - Simple alternative methods for the biological component of watershed assessments
  • GWRC2007c.pdf - Results from six years of community-based volunteer water quality monitoring by the Upper Oconee Watershed Network
  • GWRC2001g.pdf - Hydrologic transport of Escherichia coli through a Piedmont watershed
  • GWRC1997b.pdf - Predicting the fate of Imidacloprid in a coastal plain setting using VS2DT

AGU Monographs

  • AGU224 - Hydrodynamics of time-periodic groundwater flow: Diffusion waves in porous media
  • AGU42 - Flow and transport through unsaturated fractured rock
    • AGU42a.pdf - Overview
    • AGU42review.pdf - Review
    • AGU42b.pdf - Pressure wave vs. tracer velocities through unsaturated fractured rock
    • AGU42.pdf - Computer simulation model of steady fluid flow and solute transport through three-dimensional networks of variably saturated, discrete fractures

Water Management

  • GWRC2013a.pdf - Declaring drought for effective water management
  • GWRC2011a.pdf - Hydrologic impacts of energy production
  • GWRC2009b.pdf - Incorporating the cold-water pool in Lake Lanier conservation storage management
  • GWRC2005a.pdf - Identifying sewage leaks in urban environments: Examples from Athens, GA
  • GWRC2005b.pdf - Essential decisions for an instream flow policy
  • GWRC2003a.pdf - Defining a stormwater management plan: Setting the stage for watershed protection
  • GWRC2001c.pdf - Interviews of Georgia water resources scientists and managers
  • GW2000.pdf - Regulation of injected ground water tracers
  • AZ1983a.pdf - Arizona's new challenge: The conjuctive use of water resources
  • AZ1983b.pdf - UA hydrologist, analyst outline `Conjunctive Water Use'
  • AZ1983c.pdf - Factors of municipal water demand: An analysis of residential uses
  • AZ1983d.pdf - Tucson natives use more water than newcomers
  • AZ1983e.pdf - Separating indoor and outdoor water demand: Distinguishing model determinants and functional forms

Sediment and Erosion

  • ASABE2010.pdf - Laboratory investigation of rill erosion on compost blankets under concentrated flow conditions
  • ASCE2005.pdf - Simulated moving bed form effects on real-time in-stream sediment concentration measurement with densitometry
  • GWRC2003c.pdf - Establishing the relationship between turbidity and total suspended sediment concentration
  • FISC2001.pdf - Densimetric monitoring of suspended-sediment concentrations, Northeastern Georgia
  • GWRC2001d.pdf - Preliminary sediment analysis for the Broad River
  • JEQ1999.pdf - Determination of suspended sediment concentrations and particle size distributions using pressure measurements
  • GWRC1999a.pdf - In-situ monitoring of suspended sediments: Development of a densimetric monitoring instrument
  • GWRC1999c.pdf - Daily sediment loads in the North Oconee River
  • GWRC1997c.pdf - Characterization of temporal and spatial variability of turbidity in the upper Chattahoochee River
  • GWRC1995a.pdf - Recommendations of the Georgia Board of Regents' scientific panel on evaluating the erosion measurement standard defined by the Georgia Erosion and Sedimentation Act
  • AWRA1981.pdf - Use of the Universal Soil Loss Equation in the tropics

CVBEM Modeling

  • EABE2006.pdf - Determination of groundwater flownets, fluxes, velocities, and travel times using the complex variable boundary element method
  • CMWR2004.pdf - Determination of groundwater flow velocities using complex flux boundary conditions
  • ADWR2003.pdf - A complex variable boundary-element strategy for determining groundwater flownets and travel times
  • IJNME1997.pdf - Application of the ordinary least-squares approach for solution of complex variable boundary element problems
  • GWRC1997a.pdf - Complex variable boundary integral modeling of groundwater flow and transport

Periodic, Barometric, and Loading Effects

  • VZJ2007.pdf - Monitoring surface and subsurface water storage using confined aquifer water levels at the Savannah River Site, USA
  • GW2007.pdf - Removal of barometric pressure effects and earth tides from observed water levels
  • HG2003.pdf - Estimating aquifer hydraulic properties using sinusoidal pumping at the Savannah River Site, South Carolina, USA
  • GW1997.pdf - Identifying and removing barometric pressure effects in confined and unconfined aquifers
  • WRR1993a.pdf - A comparison of linear regression with Clark's Method for estimating barometric efficiency of confined aquifers

Subsurface Characterization

  • WRR2007.pdf - Modeling the effects of throughfall reduction on soil water content in a Brazilian Oxisol under a moist tropical forest
  • HG2006.pdf - Combining multivariate statistical analysis with geographic information systems mapping: A tool for delineating groundwater contamination
  • GW2002.pdf - Optimized system to improve pumping rate stability during aquifer tests
  • Soilphysics.pdf - Soil water movement
  • GWRC2001e.pdf - GIS mapping of ground-water contamination at the Savannah River Site
  • SSSAJ2000.pdf - Tracer vs. pressure wave velocities through unsaturated saprolite
  • Vadose1995a.pdf - Energy related methods: Psychrometers
  • GWRC1995b.pdf - Hydraulic evidence for vertical flow from Okeefenokee Swamp to the underlying Floridan Aquifer in Southeast Georgia

Fractured Rock

  • NUREG5239.pdf - Fluid flow and solute transport modeling through three-dimensional networks of variably saturated discrete fractures (PhD Dissertation)
  • GRL1995.pdf - Laboratory characterization of fluid flow parameters in a porous rock containing a discrete fracture
  • Vadose1995.pdf - Special problems in sampling fractured consolidated media
  • SSSAJ1994.pdf - Neutron probe calibration in unsaturated tuff
  • SSSAJ1993.pdf - Water infiltration into exposed fractured rock surfaces
  • WRR1993b.pdf - Permeability of Apache Leap Tuff: Borehole and core measurements using water and air
  • WRR1991.pdf - Steady fluid flow and travel times in partially saturated fractures using a discrete air-water interface
  • Conf1988.pdf - Unsaturated hydraulic properties of the Apache Leap Tuff Matrix
  • Conf1987.pdf - Meso-scale estimates of unsaturated fractured rock fluid flow parameters
  • Conf1987a.pdf - Effect of variable fracture permeability / matrix permeability ratios on three-dimensional fractured rock hydraulic conductivity
  • WRR1986.pdf - Water and air intake of surface-exposed rock fractures in situ
  • Rasmussen1982.pdf - Solute transport in saturated fractured media (MS Thesis)