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Columbia Glacier, Alaska, 2000
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Columbia Glacier, Alaska, 2000
Columbia Glacier, Alaska. False-colour satellite image of the Columbia Glacier, Alaska, USA, taken in 2000. Columbia Glacier descends from an ice field (top) 3, 050 metres above sea level, down the flanks of the Chugach Mountains, and into a narrow inlet that leads into Prince William Sound (bottom centre) in southeastern Alaska. It is one of the most rapidly changing glaciers in the world. Snow and ice appears bright cyan, vegetation is green, clouds are white or light orange, and the open ocean is dark blue. Exposed bedrock is brown, while rocky debris on the glaciers surface is gray. Between 1980 and 2011 the glacier had retreated 20 kilometres north and lost roughly half its thickness and volume. Imaged by NASAs Landsat satellites, on 26th July
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Media ID 9224347
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2000 Alaska Bedrock Climate Change Climatological Climatology Cold Color Earth Observation Earth Science Ecological Ecology Environmental Science From Space Frozen Geological Glacial Glacier Glaciology Global Warming Hydrological Hydrology Icey Landsat Loss Melting Meteorological Meteorology Mountain Mountainous Mountains Physical Geography Retreat Retreating Rock Rocks Rocky Satellite Satellite Image Snow Vegetation 26th Chugach Mountains Columbia Glacier Prince William Sound
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This print showcases the stunning Columbia Glacier in Alaska, taken from a false-color satellite image captured in 2000. The glacier originates from an ice field towering at an impressive elevation of 3,050 meters above sea level on the Chugach Mountains' slopes. It gracefully descends into a narrow inlet that leads to Prince William Sound in southeastern Alaska. The image vividly portrays the dramatic changes this glacier has undergone over time, making it one of the most rapidly transforming glaciers globally. The cyan hues represent snow and ice, while vibrant green signifies vegetation. White or light orange patches depict clouds floating above, and dark blue represents the open ocean. Notably, exposed bedrock appears brown against the gray rocky debris scattered across the glacier's surface. Over three decades between 1980 and 2011 alone, this magnificent natural wonder retreated approximately 20 kilometers northward while losing nearly half its thickness and volume due to climate change. Imaged by NASAs Landsat satellites on July 26th, this photograph offers valuable insights into our changing planet's environmental dynamics. It serves as a reminder of both Earth's fragility and humanity's impact on delicate ecosystems like glaciers. This awe-inspiring snapshot is courtesy of Science Photo Library—an invaluable resource for scientific imagery—showcasing nature's beauty intertwined with pressing concerns about global warming and climate change.
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