NASA: Antarctica Exposed - Scientists peel back the continent’s ice to explore its underlying bedrock - 1 vid - 26.07.13

Scientists peel back the continent’s ice to explore its underlying bedrock.

 

 

Our understanding of what lies beneath the world's biggest ice sheet has taken another leap forward. Thanks to work led by the British Antarctic Survey, scientists have a new 3D map of Antarctica’s ice and bedrock. The map, called Bedmap2, incorporates millions of new measurements, including data collected by NASA's ICESat satellite and airborne Operation IceBridge mission. The result is a virtual reconstruction of the continent’s bedrock topography and ice layers captured in never-before-seen detail. Antarctica plays a large role in the global climate system. The melting and emptying of its ice into the sea influences ocean currents and the rate of sea level rise. By having a precise map of Antarctica’s mountains, ridges, slopes and valleys—all of which affect how fast the continent's ice travels across the ice sheet—scientists can better predict future rates of ice flow. Watch the video to learn more.

Another multimedia item related to this story:
Antarctic Bedrock (id 4060)

Tag:

Earth

Short URL to This Page:

http://svs.gsfc.nasa.gov/goto?11274

Animation Number:

11274

Released:

2013-06-20

Completed:

2013-06-19

Animators:

Cindy Starr (GST)

 

Greg Shirah (NASA/GSFC)

 

Horace Mitchell (NASA/GSFC)

Video Editors:

Cindy Starr (GST)

 

Jefferson Beck (USRA)

Narration:

Jefferson Beck (USRA)

Narrator:

Jefferson Beck (USRA)

Producer:

Jefferson Beck (USRA)

Writer:

Jefferson Beck (USRA)

Please give credit for this item to:
NASA's Goddard Space Flight Center

 

 

 

The colored lines above show the velocity of observed ice flows. Bedmap2 will help scientists make projections of future ice flow. 

Airborne campaigns contributed 25 million measurements to Bedmap2. Shown above are flight paths from NASA's Operation IceBridge mission. 

The original Bedmap (lower left) provided a groundbreaking view below the ice even though it was lower resolution than Bedmap2 (upper right).


NASA: Antarctica Exposed - Scientists peel back the continent’s ice to explore its underlying bedrock - 1 vid - 26.07.13

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