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NASA Views Laser Landscapes of Helheim Glacier

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What if you could measure a glacier in such detail that you could visualize its surface in 3D? And what if you could compare that view with data from one, two, even 20 years ago? NASA airborne campaigns like Operation IceBridge have been measuring Greenland and Antarctica’s glaciers and ice sheets with a range of instruments for years, including radar, lasers, and high resolution cameras, in order to understand just how our planet’s ice is changing. This video shows in unprecedented detail how Greenland’s massive Helheim Glacier has changed over 20 years, using data from instruments like the Airborne Topographic Mapper laser altimeter and the Digital Mapping System cameras, which fly every year on IceBridge missions, and satellite data form the Canadian Space Agency’s Radarsat Satellite. IceBridge plans to return to Helheim again in 2018 to carry on its annual survey.

SANDSTORM ALAMOGORDO

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Nested between the site of the first nuclear weapons test and the town of Alamogordo, White Sands is world’s largest gypsium sand dune field. On certain days, strong winds sweep through, moving and shifting the sands. resulting in sands storms such as the one depicted in this video.

This video was filmed as part of SKYGLOW (skyglowproject.com), an ongoing crowdfunded quest to explore the effects and dangers of urban light pollution in contrast with some of the most incredible dark sky areas in North America. This project is being produced in collaboration with International Dark-Sky Association (darksky.org), a non-profit fighting for the preservation of night skies around the globe. […]

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