United States: Retreat of Columbia Glacier Vividly Captured in NASA Satellite Images

Yale Environment 360: Two false-color thermal images taken by NASA satellites depict the rapid retreat of the Columbia Glacier in Alaska over the past 25 years. Since 1986, the glacier's end-point, or terminus, has retreated 12 miles up an inlet in Prince William Sound, and the glacier also has lost about half its total thickness and volume. The top image, taken by a Landsat 5 satellite in 1986, shows two branches of the glacier joining together at a point marked "medial moraine." The glacier's terminus was just north...

URL: http://e360.yale.edu/digest/nasa_satellite_images_retreat_columbia_glacier_alaska/3470/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+YaleEnvironment360+%28Yale+Environment+360%29
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