1. Institute for Geophysics University of Texas at Austin Austin Texas USA
2. Now at Cryospheric Sciences Laboratory (Code 615) NASA Goddard Space Flight Center Greenbelt Maryland USA
3. Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
4. Department of Geological Sciences University of Texas at Austin Austin Texas USA
5. U.S. Geological Survey Denver Colorado USA
6. Institute of Arctic and Alpine Research University of Colorado Boulder Boulder Colorado USA
7. Department of Earth and Space Science and Engineering York University Toronto Ontario Canada
8. Center for Remote Sensing of Ice Sheets University of Kansas Lawrence Kansas USA
9. Department of Earth System Science University of California Irvine California USA
10. Cryospheric Sciences Laboratory NASA Goddard Space Flight Center Greenbelt Maryland USA
11. Fluid Dynamics Group Los Alamos National Laboratory Los Alamos New Mexico USA
12. Jet Propulsion Laboratory California Institute of Technology Pasadena California USA