Skip all navigation and jump to content Jump to site navigation Jump to section navigation.
NASA Logo - Goddard Space Flight Center + Visit

+ Advanced Search
View Most Recently Released Imagery
View Gallery of Imagery: A topical collection of SVS Imagery
Search Imagery by the keywords assigned to it
Search Imagery by the instruments that supplied data for a visualization product
Search Imagery by the series of visualizations that have been produced
Search Imagery by the scientist providing the data used in a visualization product
Search Imagery by the animator that created the product
Search Imagery by the identification number assigned to the visualization product
See other search options

  + RSS Feeds
  + Podcasts
blank image
Previous Animation Number   Next Animation Number
Accelerating Ice Sheet

During the summer melt season, melt water accumulates in undulations on the surface of the Greenland ice sheet. Eventually, these melt lakes drain through crevasses or moulins (tunnels under the ice sheet surface), delivering water to the bottom of the ice sheet. This melt water lubricates the interface between the ice and the bedrock, causing the ice to flow faster toward the sea during summer. As summer melt increases and more melt water is available, the greater its effect on summer ice sheet flow rates.
Share: Share via E-mail E-mail   Share on TwitterTwitter

Greenland Accerating Ice Sheet animation.    Greenland Accerating Ice Sheet animation.
Duration: 17.8 seconds
Available formats:
  512x288 (30 fps) MPEG-1   6 MB
  512x288 (60 fps) MPEG-1   7 MB
  1280x720 (60 fps) MPEG-2   45 MB
  1280x720 (60 fps) Frames
  512x288 (30 fps) MPEG-1   11 MB
  1280x720 (30 fps) MPEG-2   69 MB
  1280x720 (30 fps) MPEG-4   15 MB
  1280x720 (30 fps) Frames
  960x540 (60 fps) WEBM         5 MB
  320x180     PNG           197 KB
How to play our movies

Short URL to This Page:
Animation Number:20111
Animator:Susan Twardy (HTSI) (Lead)
Writer:Maria Frostic (UMBC)
Please give credit for this item to:
NASA/Goddard Space Flight Center Conceptual Image Lab
SVS >> Copenhagen
NASA Science >> Earth

Back to Top
Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version logo - the U.S. Government's official Web portal. + Privacy Policy and Important Notices
+ Reproduction Guidelines
NASA NASA Official:
Content Contact: