1. School of Geography and Geosciences, University of St Andrews, Fife KY16 9ST, Scotland, UK.
2. Department of Geography, University of Wales, Swansea, Singleton Park, Swansea SA2 8PP, Wales, UK.
3. Department of Geology, University of Bergen, Allégaten 41, N‐5007, Bergen, Norway.
4. Department of Geography, University of Bergen, Breiviken 2, N‐5035 Bergen‐Sandviken, Norway.
5. Quaternary Research Center, University of Washington, Box 351360, Seattle, WA 98195–1360, USA.
6. Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia.