Tongchao Nan graduated from Nanjing University with a bachelor’s and master’s degree and a Ph.D. from the University of Arizona. His research focuses on groundwater simulation, geostatistics, data assimilation, etc. He has been a PI/co-PI of four national projects including grants of National Natural Science Foundation of China.He has published 17 articles in water resources journals such as HESS and JoH. He serves as a reviewer for several journals such as JoH, Water Air and Soil Pollution etc.