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10 December 2012

Stave Glacier Retreat, British Columbia

Stave Glacier is a six kilometer long valley glacier in Garibaldi Provincial Park, British Columbia. It is at the headwaters of Stave Lake which is the part of the 205 MW Stave Lake-Hayward Reservoir-Ruskin Dam Hydropower facility. This glacier has retreated at a rate of 100 meters per year from 1996 to 2012. The dams do not have fish passages severely affecting the salmon. Koch et al (2009) in their …

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23 August 2012

Jacobsen Glacier, BC Retreat

Jacobsen Glacier is part of the Monarch Icefield of the Coastal Range of British Columbia. VanLooy and Forster (2008) noted that the glacier retreated at a rate of 30 meters/year from 1974 to 1992 and 47 meters/year from 1992-2000. In this post we examine Landsat satellite imagery from 1992, 1994, 2010 and 2012 to illustrate the changes over the last two decades. There are three readily observable changes. The first, …

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13 January 2012

Washmawapta Glacier Retreat, British Columbia

The West Washmawapta Glacier and Washmawapta Icefield are located in the Vermillon Range in British Columbia. They are in a basin between Limestone Peak and Helmet Peak. The West Washmawapta is a cirque glacier and has been the focus of detailed studies of its dynamics and runoff in recent years. The study of its dynamics (Sanders et al, 2010) measured velocities of 3-10 meters/year, pretty typical for a cirque glacier …

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22 September 2011

Apex Glacier Retreat British Columbia

The Apex Glacier is part of the Clemenceau Icefield Group in the Rocky Mountains of British Columbia. The Apex Glacier drains into 430 square kilometer Kinbasket Lake. The lake is impounded by the 5,946 MW Mica Dam operated by BCHydro. In a recent paper Jiskoot et al (2009) examined the behavior of glacier in this and the neigboring Chaba Icefield. They found that from the mid 1980’s to 2001 the Clemenceau Icefield …

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3 September 2011

Bridge Glacier Retreat Acceleration, BC, Canada

Note an Update post on Bridge Glacier Bridge Glacier is an 17 km long outlet glacier of the Lillooet Icefield in British Columbia. The glacier ends in a rapidly expanding glacial lake with 1100 meters of retreat from 2005-2010. This 200+ m per year retreat is a substantial acceleration over the observed retreat rate of 30 m per year from 1981-2005 by Allen and Smith (2007). They examined the dendrolchronology …

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9 March 2011

Warren Glacier Retreat, British Columbia, Canada

Warren Glacier in Garibaldi Provincial Park, British Columbia, Canada terminus retreat has been observed for over a century. A period of extensive retreat from 1890-1964 was followed by a period of minor advance from 1973-1977, and then rapid retreat from 1977-2009. Johannes Koch has documented this retreat in the map below and with the historic images as well, the work has been published with less colorful graphics (Koch et al., …

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26 December 2010

Castle Creek Glacier, BC annual retreat recorded

Castle Creek Glacier is in the Cariboo Mts. of British Columbia. The glacier descends north-northeast for 6.3 km from 2825 meters to the terminus at 1,810 meters. During the last 50 years of retreat has left a series of annual terminal recessional moraines that indicate how much the glacier has retreated each year. The glacier has a remarkably uniform and relatively low slope for an alpine glacier. This is one …

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6 June 2010

Spearhead Glacier and Decker Glacier retreat, Whistler, British Columbia

Map of the glaciers in the Sprearhead Range showing Little Ice Age and 1987 extent, Osborn and others (2007). Spearhead Glacier is just east of the Whistler-Blackcomb Ski area in southwest British Columbia and can be reached easily from the top Blackcomb lift. Adjacent to Spearhead is Decker Glacier. . Both glaciers flow northwest and have retreated extensively. Recently both have developed new alpine lakes at their termini that illustrate the recent …

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19 December 2009

Helm Glacier Melting Away-2014 Video Update

It is clear that the business model for glaciers in our current climate is not working. The Helm Glacier in the Coast Mountains of southwest British Columbia is an example of this.  Helm Glacier drains into the Cheakamus River, which supplies Daisy lake Reservoir and the BC Hydro 157 MW Cheakamus Power Plant.  The Cheakamus River has the Dave Marshall Salmon Reserve with over 14 kilometres of winding, re-enhanced salmon spawning river …

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