GLACIER MASS BALANCE BULLETIN Bulletin No. 12 (2010–2011) A contribution to the Global Terrestrial Network for Glaciers (GTN-G) as part of the Global Terrestrial/Climate Observing System (GTOS/GCOS), the Division of Early Warning and Assessment and the Global Environment Outlook as part of the United Nations Environment Programme (DEWA and GEO, UNEP) and the International Hydrological Programme (IHP, UNESCO) Compiled by the World Glacier Monitoring Service (WGMS) ICSU (WDS) – IUGG (IACS) – UNEP – UNESCO – WMO 2013 GLACIER MASS BALANCE BULLETIN Bulletin No. 12 (2010–2011) A contribution to the Global Terrestrial Network for Glaciers (GTN-G) as part of the Global Terrestrial/Climate Observing System (GTOS/GCOS), the Division of Early Warning and Assessment and the Global Environment Outlook as part of the United Nations Environment Programme (DEWA and GEO, UNEP) and the International Hydrological Programme (IHP, UNESCO) Compiled by the World Glacier Monitoring Service (WGMS) Edited by Michael Zemp, Samuel U. Nussbaumer, Kathrin Naegeli, Isabelle Gärtner-Roer, Frank Paul, Martin Hoelzle, Wilfried Haeberli World Glacier Monitoring Service Department of Geography University of Zurich Switzerland ICSU (WDS) – IUGG (IACS) – UNEP – UNESCO – WMO 2013 Imprint World Glacier Monitoring Service c/o Department of Geography University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland http://www.wgms.ch
[email protected] Editorial Board Michael Zemp Department of Geography, University of Zurich Samuel U. Nussbaumer Department of Geography, University