Articles | Volume 30, issue 10
https://doi.org/10.5194/hess-30-3145-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-3145-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
A multi-chain surrogate-assisted hybrid optimization framework for joint identification of groundwater contaminant sources and hydrogeological parameters
Mengtian Wu
National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, China
College of Hydrology and Water Resources, Hohai University, Nanjing, China
China Meteorological Administration Hydro-Meteorology Key Laboratory, Hohai University, Nanjing, China
Xuan Huang
Nanjing Hydraulic Research Institute, Nanjing, China
Technology Innovation Center for Green Ecological Conservation and Restoration of Yangtze River Delta Rivers and Lakes, Ministry of Water Resources, Shanghai, China
Pengcheng Xu
Macau Environmental Research Institute, Faculty of Innovation Engineering, Macau University of Science and Technology, Macau, China
Han Chen
National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, China
Xu Yang
National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, China
Jin Xu
National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, China
National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, China
College of Hydrology and Water Resources, Hohai University, Nanjing, China
China Meteorological Administration Hydro-Meteorology Key Laboratory, Hohai University, Nanjing, China
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Ting Su, Chiyuan Miao, Qingyun Duan, Jiaojiao Gou, Xiaoying Guo, and Xi Zhao
Hydrol. Earth Syst. Sci., 27, 1477–1492, https://doi.org/10.5194/hess-27-1477-2023, https://doi.org/10.5194/hess-27-1477-2023, 2023
Short summary
Short summary
The Three-River Source Region (TRSR) plays an extremely important role in water resources security and ecological and environmental protection in China and even all of Southeast Asia. This study used the variable infiltration capacity (VIC) land surface hydrologic model linked with the degree-day factor algorithm to simulate the runoff change in the TRSR. These results will help to guide current and future regulation and management of water resources in the TRSR.
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Short summary
Groundwater contamination can be hard to diagnose quickly when sources are hidden underground. We develop a new framework that integrate multiple search chains in two stages: first they scan widely using an evolutionary algorithm, then they cooperate to refine source locations with Tabu Search. Fast surrogate models replace part of the time-consuming simulations. In case studies, this approach identifies source information more accurately and saves substantial computing time.
Groundwater contamination can be hard to diagnose quickly when sources are hidden underground....