On the Edge

By Tom Yulsman | April 15, 2013 12:55 am

The edge of sea ice in Davis Strait between Baffin Island and Greenland is seen in this image from NASA’s Terra Satellite. (Image: NASA)

During one of my regular remote sensing ramblings around the globe using NASA’s interactive Worldview web site, I spotted this scene and found it so compelling that I thought I’d share it.

The image is based on data from NASA’s Terra satellite. It shows the fjords of western Greenland on the right , and the filagreed edge of Arctic sea ice on the left. The dark body of water in between is Davis Strait between Baffin Island in Canada and Greenland.

Graphically, I find it quite spectacular. But there’s more to it than aesthetics. The extent of the sea ice in this region — as in the Arctic region overall — is less than the long-term average for this time of year. Ordinarily, it would fill more of the waterway, according to the update map from the National Snow and Ice Data Center.

Arctic sea ice reached its maximum extent in March, and it is now shrinking as temperatures warm.

CATEGORIZED UNDER: Arctic, Sea Ice, select, Top Posts


ImaGeo is a visual blog focusing on the intersection of imagery, imagination and Earth. It focuses on spectacular visuals related to the science of our planet, with an emphasis (although not an exclusive one) on the unfolding Anthropocene Epoch.

About Tom Yulsman

Tom Yulsman is Director of the Center for Environmental Journalism and a Professor of Journalism at the University of Colorado, Boulder. He also continues to work as a science and environmental journalist with more than 30 years of experience producing content for major publications. His work has appeared in the New York Times, Washington Post, Audubon, Climate Central, Columbia Journalism Review, Discover, Nieman Reports, and many other publications. He has held a variety of editorial positions over the years, including a stint as editor-in-chief of Earth magazine. Yulsman has written one book: Origins: the Quest for Our Cosmic Roots, published by the Institute of Physics in 2003.


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