Professor of Geography, University of Oregon

Professor of Geography, McGill University

Departament of Geography, University of Valencia

Professor of Geographical Sciences, Arizona State University

Professor emérito, Universidade de São Paulo (USP)- 1924-2012

Emeritus Professor of Glaciology, Aberystwyth University

Professor of Hydrology, University of Birmingham, UK

University of Tartu

Professor of Geography, University of Iowa

Emeritus Professor of Physical Geography Swansea University