1. Department of Civil Engineering, NOAA-Cooperative Remote Sensing Science and Technology Center; City University of New York; New York New York USA
2. Department of Earth and Environmental Engineering, Columbia Water Center; Columbia University; New York New York USA
3. Department of Economics and Mathematics, Columbia College; Columbia University; New York New York USA
4. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering; Hohai University; Nanjing China