Lan Zhang currently works as Post-Doctoral Research Scholar in the Department of Agricultural and Biological Engineering at Texas A & M University. She received her B.S. in Mechanical Engineering, her M.S. in Water Resources Sciences, and her Ph.D. in Civil and Environmental Engineering. She has published more than forty articles in the areas of hydrology, copulas, water quality, entropy, and water resources. She has been working on the copula and its applications in hydrology and water resource engineering for more than 10 years.