Durham University, Department of Geography Science Laboratories South Road, Durham, DH1 3LE, United Kingdom
University of Illinois at Urbana-Champaign, Departments of Geology and Geography and Ven Te Chow Hydrosystems Laboratory, University of Illinois at Urbana-Champaign, 1301 W. Green Street, Urbana, Ill 61801, United States
Durham University, Department of Geography Science Laboratories South Road, Durham, DH1 3LE, United Kingdom