A DESCRIPTION OF DRAINAGE AREAS GAGED BY THE STORM DRAINAGE RESEARCH PROJECT

THE GAGING PROGRAM FOR OBTAINING ACTUAL RAINFALL AND RUNOFF DATA FROM SELECTED SAMPLING AREAS IN THE BALTIMORE AREA BY THE STORM DRAINAGE RESEARCH PROJECT OF THE JOHNS HOPKINS UNIVERSITY IS PRESENTED HERE. THIS INCLUDES THE HISTORY OF THE PROGRAM, THE DESCRIPTION OF THE AREAS GAGED AND THE REASONS FOR SELECTING THEM, THE INSTRUMENTATION USED, THE DATA RECORDED AND THEIR GENERAL EVALUATION FOR RELIABILITY, AND THE STORAGE AND AVAILABILITY OF THOSE RELIABLE DATA. ALTOGETHER 52 AREAS HAVE BEEN GAGED SINCE 1948. THE LENGTH OF RECORD AT THE GAGED AREAS IS CONSIDERABLE, WITH AS MUCH AS 17 YEARS OF RAINFALL AND RUNOFF DATA FROM SOME AREAS. HOWEVER, MUCH OF THE EARLIER DATA COLLECTED MUST BE CONSIDERED INACCURATE BECAUSE OF THE CRUDE INSTRUMENTATION USED. THE RAINFALL DATA IS STORED IN CHART FORM, WITH CONTINUOUS RECORDS FROM MOST GAGES. THE RUNOFF DATA FROM 1960 TO THE PRESENT HAVE BEEN ENTERED ON IBM DATA CARDS AND ON DATA TAPE, WITH A PRINT-OUT AVAILABLE OF RAINFALL AND RUNOFF FOR MOST STORMS IN THAT PERIOD. CURRENTLY THERE ARE 16 GAGED AREAS IN OPERATION, RANGING IN SIZE FROM 0.21 TO 153 ACRES, IN SLOPES FROM 0.8 PERCENT TO 45 PERCENT, AND IN DEGREE OF IMPERVIOUSNESS FROM 0 TO 100 PERCENT. OF THESE 16 AREAS, 7 ARE ONLY FOR COLLECTING RAINFALL DATA, 6 FOR RAINFALL AND COLLECTIVE SEWER RUNOFF DATA WITH 3 HAVING SYNCHRONOUS TIMING, AND 3 FOR SYNCHRONOUS RAINFALL AND SURFACE RUNOFF DATA FROM 12 STREET DRAINAGE INLETS. /AUTHOR/

  • Supplemental Notes:
    • Adm, Cpr-11-5975 (100-35-31-3663-011)
  • Corporate Authors:

    Johns Hopkins University, Baltimore

    Baltimore, MD  USA  21218

    Maryland State Roads Commission

    ,    

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Horn, D R
    • Dee, N
  • Publication Date: 1967-1

Subject/Index Terms

Filing Info

  • Accession Number: 00203997
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: May 5 1994 12:00AM