Member of the Royal Swedish Academy of Sciences, and the Royal Swedish Academy of Engineering Sciences; International Member of the US National Academy of Engineering; Corresponding Member of the Academy of Athens, Greece; Fellow of the American Geophysical Union (AGU) and of the Stellenbosch Institute for Advanced Study, South Africa; Professor and Former Head of the Department of Physical Geography, Stockholm University, Sweden; Guest Professor in the Department of Sustainable Development, Environmental Science and Engineering (SEED), KTH Royal Institute of Technology, Sweden; Editor-In-Chief of Water Resources Research, American Geophysical Union.