Hydrograph Decomposition: Using a Technical Databaseby Charles R. Bristol, Camp Dresser & McKee, Annandale, VA, USA,
Larry A. Roesner, Camp Dresser & McKee, Annandale, VA, USA,
Sue Ann Hanson, Camp Dresser & McKee, Annandale, VA, USA,
Document Type: Proceeding Paper
Part of: Computer Applications in Water Resources
Trouble shooting for infiltration/inflow (I/I) problems in a sewer system is made much easier with the aid of a computerized hydrograph decomposition methodology. A methodology has been developed which combines the technical algorithm of separating the three components of total wet weather flow (baseflow, groundwater infiltration (GWI), and rainfall-related infiltration/inflow (I/I) with the efficiency of a database. This methodology is divided into three sequential analyses: rainfall data analysis, determination of baseflow and GWI, and calculation of the I/I components. The entire procedure consists of several interactive and batch (or background) report programs interfacing with a database containing rain and flow data. The purpose of this paper is to present these procedures.
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