Department of Geography, Durham University, Science Site, South Road, Durham, DH1 3LE, United Kingdom
INSTAAR and Department of Geological Sciences, University of Colorado, Campus Box 450, Boulder, CO 80309-0450, United States
Baltic Sea Research Institute Warnemuende, Seestrasse 15, Rostock, D-18119, Germany ; Bjerknes Centre for Climate Research, University of Bergen, Allegaten 55, Bergen, NO-5007, Norway
INSTAAR, University of Colorado, Campus Box 450, Boulder, CO 80309-0450, United States
Department of Geography, Durham University, Science Site, South Road, Durham, DH1 3LE, United Kingdom
Scott Polar Research Institute, University of Cambridge, Lensfield Road, Cambridge, CB21ER, United Kingdom
Royal Netherlands Institute for Sea Research (NIOZ), PO Box 59, Den Burg (Texel), NL-1790 AB, Netherlands