Detail View: NASA Jet Propulsion Laboratory Collection: College Fjord, Alaska

Title: 
College Fjord, Alaska
Creator: 
NASA/JPL-Caltech
Description: 
Glaciers are an important indicator of climate change. While scientists estimate that there are about 80,000 glaciers worldwide, there may actually be many more. ASTER science team members have begun a global inventory of land ice, including surface topography, to measure how and how quickly Earth's ice is changing. One goal of the Global Land Ice Measurements from Space Project is to create a geographic information system capable of measuring changes in individual glaciers. This ASTER image shows College Fjord, Prince William Sound, Alaska, in the visible and near infrared bands. Vegetation is red, and snow and ice are white and blue. Icebergs calved off of the glaciers appear as white dots in the water. At the head of the fjord, Harvard Glacier (left) is one of the few advancing glaciers in the area. Dark streaks on the glacier are medial moraines, lines of rock and dirt that indicate where glaciers have merged. Yale Glacier to the right is retreating, exposing bedrock, now covered with vegetation, where once there was ice. On the west edge of the fjord, several small glaciers enter the water. # # # # #
Date: 
6/24/00
MediaType: 
Image
Year: 
2000
Contributor: 
JPL Archives
What: 
ASTER