ID:
publications-4498
Type:
article
Year:
1985
Authors:
Maidment, David R. and Maidment, David R. and Miaou, Shaw-Pin and Miaou, Shawβ€Pin β€P and Crawford, Melba M. and Crawford, Melba M.
Title:
Transfer Function Models of Daily Urban Water Use
Venue/Journal:
Water Resources Research
DOI:
10.1029/wr021i004p00425
Research type:
Water System:
Technical Focus:
Abstract:
A time series model of daily municipal water use as a function of rainfall and air temperature is developed. Total water use is separated into base use and seasonal use. The seasonal use series is detrended, then a nonlinear heat function relating water use to air temperature during rainless periods is employed to deseasonalize the series. The residuals are modeled using Box-Jenkins transfer functions with transformed rainfall and air temperature as independent variables. The model is applied to daily data from Austin, Texas from 1975 to 1981 and accounts for 97\% of the variance of daily municipal water use over that period. Forecasts of daily usage are made for a two-week lead time.
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