| Boulder, Colorado USA: National Snow and Ice Data Center | |
|---|---|
| Woodgate, Polar Science Center, Applied Physics Laboratory University of Washington, January 2001 | Department of Commerce, National Oceanic and Atmospheric Administration, National Oceanographic Data Center, Silver Spring, Maryland, 20910 |
Department of Commerce, National Oceanic and Atmospheric Administration, National Oceanographic Data Center, Silver Spring, Maryland, 20910.
20| Peter Wilson, 17 November 2008, | Robert Simmon, , and Walt Meier, |
|---|---|
| Thomas Nilsen, Bellona, 24 August 2001 | National Oceanic and Atmospheric Administration |