1. Program in Earth and Environmental Sciences; CUNY Graduate Center, City University of New York; New York New York USA
2. Department of Geography; Hunter College, Program in Earth and Environmental Sciences, City University of New York; New York New York USA
3. Department of Earth and Environmental Engineering; Columbia University; New York New York USA
4. National Snow and Ice Data Center; Cooperative Institute for Research in Environmental Sciences, University of Colorado; Boulder Colorado USA
5. Department of Geography; Rutgers University; Piscataway New Jersey USA