1. Department of Civil, Environmental, and Architectural Engineering; University of Colorado; Boulder Colorado USA
2. Cooperative Institute for Research in Environmental Sciences, University of Colorado; Boulder Colorado USA
3. Department of Applied Mathematics; University of Colorado; Boulder Colorado USA
4. U.S. Geological Survey, Earth Resources Observation and Science Center; Sioux Falls South Dakota USA
5. Climate Hazards Group, Geography Department; University of California; Santa Barbara California USA