Kinetic data - constants, segment parameters, and miscellaneous functionsof time - are read as input data by WASP for use in the user suppliedkinetic subroutine, WASPB. The actual choice, of what the constants, segmentparameters, and piecewise linear functions of time are to be, is determinedby the modeler and the systems analyst as they develop a new kineticsubroutine. The selection and application of kinetic data will be discussedin greater detail in "Writing a WASP5 Subroutine", but their basic conceptis presented here for background reference. The BOD oxidation rate at 20°C,the saturated growth rate of phytoplankton at 20"C, ammonia to nitratenitrifiration rate at 20°C, temperature correction factor for reaeration,and saturated light intensity may all be thought of as constants. Parametersare segment dependent and may include such factors as segment depths,reaeration coefficients, and water temperatures. Kinetic piecewise linearfunctions might include the daily incident solar radiation for a year, orthe fraction of daylight hours over a year. Due to core requirements it wasdecided not to permit segment dependent piecewise linear functions.
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