1. Center for Water and Health, Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA, Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York 10964, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), Hydrology and Remote Sensing Laboratory, Beltsville, Maryland 20705, Department of Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, and Center for...