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25 June 2010
Multi-Year Sea Ice Thins in the Arctic
Professor David Barber of the University of Manitoba Center for Earth Observation Science recently spoke at the International Polar Year conference in Oslo. An excerpt from his talk refers to the sea ice cover satellite data produced by the National Snow and Ice Data Center, which describes areal extent only: “Scientists spend a lot of energy discussing the ‘squiggly line’ generated by satellite data on sea ice extent,” Dr. Barber …
15 June 2010
Sharp Decrease in May Arctic Sea Ice Cover
May saw a sharp decrease in Arctic sea ice cover, based on satellite observations. The average ice cover for the month was about 13 million square kilometers, 500,000 square kilometers less than the 30-year average. The rate of icemelt averaged 46,000 kilometers per day, the fastest rate recorded. The graph above indicates the area of Arctic sea ice is now below two standard deviations of the mean ice coverage observed …
John Freeland earned a PhD in Soil Science (Pedology) at North Dakota State University and is a consultant working in the private sector. He has published soils research and taught at the high school and college levels. John is interested in wetlands, soil genesis, science communication, the intersection of art and science, and soil-water-landscape processes. John lives near the Ohio-Michigan border and plays bass in multiple music projects.