Resume

• 1988

  The Ohio State University

  Department of Food

  Agricultural and Biological Engineering

  Purdue University

  Tennessee Department of Health

  Mississippi State University

  Agricultural and Biological Engineering

  Tennessee Department of Health

  Purdue University

  Purdue University

  Agricultural Engineering Department

  Research Associate

  Starkville

  MS

  Research Associate and Instructor

  Mississippi State University

  Agricultural and Biological Engineering

  The Ohio State University

  Department of Food

  Agricultural and Biological Engineering

• 1984

  Doctor of Philosophy (PhD)

  Agricultural Engineering/Erosion Mechanics and Modeling

  Purdue University

• 1983

  Master of Science (MS)

  Agricultural and Biological Engineering

  Mississippi State University

• 1980

  Bachelor of Science (BS)

  Agricultural and Biological Engineering

  Mississippi State University

• 1972

  Master of Science (MS)

  Biology/Biological Sciences/Ecology/Microbiology

  Middle Tennessee State University

• 1968

  Bachelor of Science (BS)

  Biology/Biological Sciences

  General

  Middle Tennessee State University

• Team Building

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  Program Evaluation

  Grants

  Modeling nitrate removal in a denitrification bed

  Modeling nitrate removal in a denitrification bed

  Measurements from tipping bucket rain gauges (TBRs) consist of systematic and random errors as an effect of external factors

  such as mechanical limitations

  wind effects

  evaporation losses

  and rainfall intensity. Two different models were calibrated in the lab to quantify measurement errors at different rainfall intensities. Both TBR measurements showed a significant deviation from the actual rainfall rates with increasing underestimation at higher intensities and slight overestimation at lower intensities. Model TR-525 showed an earlier and larger deviation (up to 20%) as compared to ISCO-674 (up to 13%) over the range of intensities. These findings are being used to correct precipitation data being collected by both TBRs and test the effect of these corrections on the outputs of hydrologic models

  such as SWAT and DRAINMOD.

  Measurement Errors in Tipping Bucket Rain Gauges under Different Rainfall Intensities and their implication to Hydrologic Models

  Yuhui Shang

  Hans-Peter Piepho

  Vinayak S. Shedekar

  Norman R. Fausey

  Crop yield evaluation under controlled drainage in Ohio

  United States

  Subsurface drainage volume reduction with drainage water management: Case studies in Ohio

  USA