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ALISON (Image 1)

June 24, 2010
ALISON (Image 1) Eighth-grade students from Anvil City Science Academy (ACSA) in Nome, Alaska, drill a hole in the ice on the ACSA Pond before measuring the ice thickness. The site is part of the ALISON (Alaska Lake Ice and Snow Observatory Network) program, a science education and scientific research partnership between the University of Alaska, Fairbanks, and the K-12 education community in Alaska. The ALISON observatory in Nome is located about 1 kilometer from the Anvil City Science Academy (ACSA) and 8 kilometers from downtown Nome. The lake--which is not yet named--is one of many located among the tailing left behind by the gold dredges that enriched Nome many years ago. When the students set up the observatory on November 23, 2002, the ice was almost 30 centimeters thick and the snow averaged about 2 centimeters deep. The snow was rapidly turning to slush due to the warm, wet weather. Measurements taken at the observatory will be used for numerical modeling to simulate the variability of lake ice growth and decay at the present time and during the period of meteorological record in the different climate zones of Alaska, and to understand the factors responsible for that variability in order to predict the response of the ice to future climate change. This research was supported by National Science Foundation Office of Polar Programs grant OPP 03-26631. (Date of Image: March 2004) [One of 8 related images. See Next Image.]


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