Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern...

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Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC . Sir MacDonald and Illecillewaet Glacier, 1902 (~end of Little Ice Age (LIA

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Page 1: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Visualisation of changes in alpine glaciers in western Canada

Roger Wheate, University of Northern BC

Mt. Sir MacDonald and Illecillewaet Glacier, 1902 (~end of Little Ice Age (LIA)

Page 2: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

1885

Illecillewaet Glacier, Glacier National Park

Page 3: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

2011

Page 4: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.
Page 5: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Thompson Glacier, Axel Heiberg Island, 1965

Page 6: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Glaciers viewed as constant in 1960s-70s

Page 7: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

1981 Columbia Icefieldelevation data are not updated: roads, glaciers from 1980; contours from 1960

Page 8: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Western Canada

(BC / Alberta)

~15,000 glaciers

BC ~25,000 km2

Alberta: 1,000 km2

Page 9: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Mt. Edziza

1965 yellow1982 red(from air photo mapping)

2005 white(Landsat)

accumulation area - black

Page 10: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Robson Glacier

Page 11: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

1923 British Columbia-Alberta boundary commission map

Page 12: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Cambrian Icefield, Coast Mountains

Page 13: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Maligne Lake glaciers, Jasper NP

Maligne Lake area 1930-2010: total loss of 33.07 km2 (from 79.5 km2) or - 0.52% per year. Between 2000 and 2010, the rate increased to 2.23% per year

Page 14: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Sources: map contours, stereo photography, spaceborne DEMs: e.g. SRTM, ASTER GDEM

Current changes ~ -5m/year

Sources: maps, air photos, satellite images

Current changes ~ -20m/year

Thinning Retreat

Page 15: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Techniques for showing elevation change (DEM subtraction: Haeberli and Paul, 2009)

Page 16: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Hoodoo Mountain area: Landsat TM 2010

Page 17: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Hoodoo Glacier: extents 1965 to 2005 (overlain on Landsat TM 2010)

1965, 1982 from aerial photos, 1999 and 2005 from Landsat

Page 18: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

NTDB 1965: DEM from contours; geogratis.ca

Page 19: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

BC ‘TRIM’ mapping 1982: digital stereophotography; geobase.ca

Page 20: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Shuttle Radar Topography Mission (SRTM) 1999 (spaceborne)

Page 21: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

ASTER GDEM 2000 – 2008 (~2004) multiple images

Page 22: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

DEM Difference Image: NTDB (1965) – ASTER (2004)

Page 23: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

NTDB 1965

Salmon Glacier area

Alaska / BC

Page 24: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

BC TRIM 1985

Page 25: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

SRTM 1999

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ASTER 2004

Page 27: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

230

0

DEM subtractionNTDB – ASTER

0-230m (unclassed)

Page 28: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Final map product

Page 29: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Severnaya Zemlya: Glacier changes 1980-2000s dib.joanneum.at/smaragd

Page 30: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Severnaya Zemlya: Glacier changes in 1980-2000s

Page 31: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Landsat image, Zermatt 01/09/2010downloaded 03/09/2010 – geotiff (free Landsat archive: glovis.usgs.gov)

GlobGlacier workshop, Zermatt 01/09/2010

Page 32: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

December 1989

Page 33: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

January 2010

Page 34: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Feb 2006

Page 35: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

April 2004

Page 36: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

June 2006

Page 37: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

August 2005

Page 38: Visualisation of changes in alpine glaciers in western Canada Roger Wheate, University of Northern BC Mt. Sir MacDonald and Illecillewaet Glacier, 1902.

Final slide

* Visualisation images to be displayed at: glacierchange.org (public input website run by Ph.D student Matt Beedle)

* New millennium global glacier extents: glims.org/RGI/randolph.html

Acknowledgements

Thanks to reviewers comments

Selected images by :Anastasia Gurov, Ulrike Schinke, Jacob Trultzch (Dresden TU)Sabrina Marx, Marlene Baumgart (Bonn, Heidelberg)


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