1. Institute of Geography and Earth Science; Aberystwyth University; Aberystwyth SY23 3DB UK
2. Department of Geography; University of Sheffield; Winter St. Sheffield S10 2TN UK
3. British Antarctic Survey; High Cross, Madingley Road Cambridge CB3 0ET UK
4. Division of Geography and Environmental Science; University of Hertfordshire; Hatfield AL10 9AB UK
5. Norwegian Polar Institute; Polar Environmental Centre; Tromsø 9296 Norway
6. Department of Arctic Geology; University Centre in Svalbard (UNIS); Longyearbyen 9171 Norway