LABORATORY STUDY OF WATERSHED HYDROLOGY

THE PROPOSED LABORATORY APPROACH AIMS TO INVESTIGATE THE BASIC LAWS AND PRINCIPLES CONTROLLING THE MECHANICS OF RUNOFF FROM THE WATERSHED. IT EMPLOYS A WATERSHED EXPERIMENTATION SYSTEM (WES) AS A TOOL FOR THE RESEARCH. THE WES IS A SYSTEM OF INTEGRATION OF INTEGRATED HYDRAULIC, ELECTRONIC AND STRUCTURAL DESIGN. IT CAN PRODUCE AN ARTIFICIAL RAINFALL OF VARIABLE TIME AND SPACE DISTRIBUTION TO MOVE OVER A LABORATORY AREA OF 40 FT. BY 40 FT. OR LESS, THUS CAPABLE OF SIMULATING A STORM MOVING IN ANY DIRECTION OVER A TESTING DRAINAGE BASIN CONSTRUCTED WITHIN THE AREA. THE EXPERIMENT IS CONTROLLED ELECTRICALLY BY A DIGITAL COMPUTER AND THE OUTPUT RUNOFF MEASURED BY SONAR DETECTORS FOR TRANSMITTING INFORMATION TO THE COMPUTER FOR IMMEDIATE RECORDING AND ANALYSIS. VARIOUS PROBLEMS BEING STUDIED INCLUDE THE TIME FACTOR IN RUNOFF PROCESS, THE CONCEPTUAL WATERSHED ROUGHNESS AND THE EFFECT OF STORM MOVEMENT ON PEAK DISCHARGES. THE WES MAY ALSO BE USED TO STUDY SUBSURFACE RUNOFF BY EMPLOYING TESTING BASINS MADE OF POROUS MATERIAL, THUS CONSIDERING AN ADDITIONAL DEPTH DIMENSION OF THE RUNOFF PROCESS. HOWEVER, IT IS NOT THE IMMEDIATE OBJECTIVE TO STUDY WATERSHED MODELING BEFORE THE BASIC DIMENSIONLESS FLOW CRITERIA BECOME KNOWN. /AUTHOR/

  • Supplemental Notes:
    • Hydr Engr SERIES NO 14, 17 PP, 3 FIG
  • Corporate Authors:

    University of Illinois, Urbana-Champaign

    Department of Civil and Environmental Engineering
    205 North Mathews Avenue
    Urbana, IL  United States  61801-2352
  • Authors:
    • Chow, V T
  • Publication Date: 1967-9

Subject/Index Terms

Filing Info

  • Accession Number: 00204096
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 16 1994 12:00AM