David B. Parker, Ph.D., P.E.
Ph.D. Fellow
Department of Biological Systems Engineering
University of Nebraska - Lincoln
June, 1993 - August, 1996
USDA Water Science Fellow
Research:
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Phase I - Field Study
Performed field research to study seepage from a feedlot runoff storage
pond at the USDA Meat Animal Research Center near Clay Center, Nebraska.
Drilled soil borings, collected soil and groundwater samples, and performed
analyses for a variety of physical and chemical parameters to map the contaminant
plume. Soils were characterized for hydraulic properties including saturated
hydraulic conductivities and moisture release characteristics.
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Phase II - Modeling Study
Developed a water balance model to predict feedlot runoff, pond seepage,
evaporation, and overflow. Used a finite element saturated/unsaturated
flow and transport model for the seepage component (SWMS_2D, developed
by the USDA Salinity Laboratory). The model was used to evaluate magnitude
and variability in water balance components by performing 8,500 annual
simulations in a Monte Carlo analysis.
Awards:
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Grad Student of the Year Award, MidCentral ASAE Meeting, 1996
Other Activities:
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Guest lecturer in Non-Point Source Pollution and Environmental Engineering
Classes
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Gave demonstrations and departmental tours to visitors to the department
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Graduate student representative on Department's curriculum committee
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Graduate student representative in the CSRS review of department
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Organized Biological Systems Engineering Grad Student Club
University of Nebraska
David
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