Highlights: → An improved urban NPS model was developed. For the study area, residual pollutant should be considered in pollutant buildup and washoff functions for simulating urban nonpoint source pollution when the total runoff volume is less than 30 mm. The application results show that the developed model with consideration of residual pollutant is more capable of simulating nonpoint source pollution from urban storm runoff than that without consideration of residual pollutant. The developed models are calibrated and verified with observed data from an urban catchment in the Los Angeles County. The first model assumes that there is no residual pollutant after a storm event while the second one assumes that there is always residual pollutant after each storm event. In this paper, two urban pollutant washoff load models are derived using pollutant buildup and washoff functions. Many urban nonpoint source pollution models utilize pollutant buildup and washoff functions to simulate storm runoff quality of urban catchments. Wang Long Wei Jiahua Huang Yuefei Wang Guangqian Maqsood, Imran International Nuclear Information System (INIS) Urban nonpoint source pollution buildup and washoff models for simulating storm runoff quality in the Los Angeles County Wang, Long Wei, Jiahua Huang, Yuefei Wang, Guangqian Maqsood, Imran Urban nonpoint source pollution buildup and washoff models for simulating storm runoff quality in the Los Angeles County. Resolution, sensor array size, and number and location of sensor readings can be found from the accuracies of the parameter estimates.
Model parameters are estimated from the simulated data using a least-squares batch processor. The remote-sensed data are simulated by adding Gaussian noise to the concentration level values generated via the transport model. Pollution concentration levels are arrived at via modeling of a remote-sensing system. A two-dimensional instantaneous-release shear-diffusion model serves as representative of a simple transport process. A simulation of water pollution model parameter estimationĪ parameter estimation procedure for a water pollution transport model is elaborated.
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