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Grinnell Glacier from Angel Wing by Lisa McKeon

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About This Gigapan

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Taken by
Lisa McKeon Lisa McKeon
Explore score
1
Size
2.78 Gigapixels
Views
751
Date added
Sep 17, 2013
Date taken
Aug 27, 2013
Categories
environmental, geology, landscape, nature
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Competitions
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Description

Grinnell Glacier basin in Glacier National Park, Montana includes three glaciers: Gem Glacier (perched on the Continental Divide), Salamander Glacier (once connected to Grinnell) and Grinnell Glacier itself. Upper Grinnell Lake is the turqouise blue lake that has been created by the melting of the glacier. The creamy blue color of the lake is indicative of an active glacier. Glacier flour, the fine sediment created by the grinding action of the movement of the ice, is suspended in the water column of the lake, causing the spectacular color.

This photo was taken from the summit of Angel Wing mountain. The USGS Climate Change in Mountain Ecosystems project intends to repeat this photo from the same location each year to track changes in the glacier. Grinnell Glacier has become an iconic symbol of climate change because of the many images that exemplify the glacier's sensitivity to the warming climate. Compare historic to contemporary images of this and other glaciers at:
www.nrmsc.usgs.gov/repeatphoto Will open in a new tab or window
Visit the Climate Change in Mountain Ecosystems (CCME) website to learn more about how climate change is effecting Glacier National Park and how USGS scientists are tracking glacier recession with GigaPan technology.
nrmsc.usgs.gov/research/global.htm
Search "ccme" on gigapan.org to view the USGS collection of Glacier National Park images.


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Stitcher Notes

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GigaPan Stitch.Efx version 2.1.0161 (Windows)
Panorama size: 2782 megapixels (82296 x 33808 pixels)
Input images: 464 (29 columns by 16 rows)
Field of view: 141.5 degrees wide by 58.1 degrees high (top=25.9, bottom=-32.2)
Settings:
Vignette correction on
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX110 IS
Image size: 3456x2592 (9.0 megapixels)
Capture time: 2013-08-27 12:00:54 - 2013-08-27 12:32:20
Aperture: f/8
Exposure time: 0.00625
ISO: 80
Focal length (35mm equiv.): 357.6 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 17.7 to 30.5 percent
Vertical overlap: 17.7 to 30.2 percent
Computer stats: 8061.59 MB RAM, 4 CPUs
Total time 50:10 (6.5 seconds per picture)
Alignment: 18:53, Projection: 12:59, Blending: 18:18
(Preview finished in 35:43)
Color Adjustments:
black: 6.6
white: 98.8
exposure: 0.2
temperature: 3

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