1. School of Earth and EnvironmentUniversity of Leeds Leeds UK
2. British Antarctic SurveyNatural Environment Research Council Cambridge UK
3. Department of Earth and Planetary ScienceMacquarie University North Ryde New South Wales Australia
4. Department of GeographyDurham University Durham UK
5. Department of GeosciencesPennsylvania State University University Park PA USA
6. Department of Earth and Planetary SciencesWashington University St. Louis MO USA
7. Department of GeosciencesColorado State University Fort Collins CO USA
8. Department of Geological SciencesCentral Washington University Ellensburg WA USA
9. School of Earth SciencesOhio State University Columbus OH USA