期刊
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
卷 36, 期 7, 页码 1791-1818出版社
SPRINGER
DOI: 10.1007/s00477-022-02233-y
关键词
Geostatistical approach; Inverse problem; Multiple pollutant point sources; Source identification; River network
This study presents an innovative method for the simultaneous identification of the location and release history of pollutant sources in river networks using minimum observational data. The method involves determining the number and location of pollutant sources by defining two types of monitoring stations and collecting real-time data, and then solving the inverse source problem using a geostatistical approach. Different scenarios are discussed for different conditions of pollutant sources in the river network.
Simultaneous identification of the location and release history of pollutant sources in river networks is an ill-posed and complicated problem, particularly in the case of multiple sources with time-varying release patterns. This study presents an innovative method for solving this problem using minimum observational data. To do so, a procedure is proposed in which, the number and the suspected reaches to the existence of pollutant sources are determined. This is done by defining two different types of monitoring stations with an adaptive arrangement in addition to real-time data collection and reliable flow and transport mathematical models. In the next step, the sources' location and their release history are identified by solving the inverse source problem employing a geostatistical approach. Different scenarios are discussed for different conditions of number, release history and location of pollutant sources in the river network. Results indicated the capability of the proposed method in identifying the characteristics of the sources in complicated cases. Hence, it can be effectively used for the comprehensive monitoring of river networks for different purposes.
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