ADVANCE OF INVERT SIMULATION METHODS FOR GROUNDWATER POLLUTION SOURCE IDENTIFICATION

Yuqiao Long , Tingting Cui , Wei Li1 , Zhongping Yang , Yongwei Gai

ABSTRACT: Groundwater pollution source identification (GPSI) is an important support of contaminate removing, groundwater protecting, potable water security. As a typical ill-posed problem, GPSI has been studied for thirty years, and a brief review is given to conclude the characteristics of GPSI problems and the simulation method. The invert simulation method could be classified into four types: simulation-optimization method, analytical and regression method, direct method, and stochastic method. Most of these methods were studied with ideal numerical cases, further researches may focus on more complex GPSI problem, expressing physical chemistry and biological process, improving GPSI modeling efficiency, and model uncertainty.

Keywords: groundwater, pollution, source identification, invert simulation.