Arctic ice maximum extent, 1979-2006

Arctic ice maximum extent, 1979-2006

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This image is part of the sequence Environment: Arctic sea ice cover

Credit: NASA/GODDARD SPACE FLIGHT CENTER SCIENTIFIC VISUALIZATION STUDIO/SCIENCE PHOTO LIBRARY

Caption: Arctic sea ice maximum extent, 1979-2006. The white area is the 2006 maximum, the yellow shows the cumulative maximum between 1979-2006. The extent of the sea ice varies over the course of a year, being largest just after the winter (the 2006 data is from 10th March) and smallest after the summer. Comparing the maxima and minima over several years allows trends in ice cover to be followed. Both the minimum and maximum extent of Arctic sea ice have reduced greatly since the middle of the 20th century, providing powerful evidence for global warming due to carbon emissions. Data from the Special Sensor Microwave Imager (SSMI) on a Defense Meteorological Support Program (DMSP) satellite.

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Keywords: 1979, 2006, 21st century, arctic, arctic circle, canada, climate change, climatological, climatology, dmsp, earth observation, environment, environmental science, from space, glaciology, global warming, greenland, ice, ice cap, ice sheet, march, maximum extent, melt, melting, north america, north american, north pole, northern, polar, satellite, satellite image, sea ice, shrinking, ssmi, winter

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