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September 24, 2015

Bionnassay Glacier Terminus Tongue Detaches, Mont Blanc, France

Bionnassay Glacier drains west from Dôme du Goûter and Aiguille de Bionnassay of the Mont Blanc Massif in France. The glacier has a heavily debris covered terminus and has experienced less retreat from 1980-2010 then other Mont Blance glaciers. Bionnassay retreated 200 m (Moreau et al , 2012), while Mer de Glace retreated 500 m in the interval 1998 to 2008. Gardent et al (2014) observed a 25% decline in …


June 24, 2013

Glacier du Tour Retreat, France

Tour du Glacier is in the Valle de Chamonix and is one valley north of D’Argentiere Glacier and two north of Mer de Glace. Here we examine the retreat of Glacier du Tour from 1988 to 2011 using Landsat imagery and Google Earth. In each image the purple arrow indicates the 1988 terminus. The yellow arrow the top of an icefall at 2650 m. The orange arrow a prominent turn …