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

Posted by ricardo marcenaro | Posted in | Posted on 16:18




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:

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)
 
Narration:
Narrator:
Producer:
Writer:
Please give credit for this item to:
NASA's Goddard Space Flight Center
 
video
 
 
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




Ricardo M Marcenaro - Facebook

Blogs in operation of The Solitary Dog:
Solitary Dog Sculptor:
byricardomarcenaro.blogspot
Solitary Dog Sculptor I:
byricardomarcenaroi.blogspot.com


Para:
comunicarse conmigo,
enviar materiales para publicar,
propuestas comerciales:
marcenaroescultor@gmail.com
For:
contact me,
submit materials for publication,
commercial proposals:
marcenaroescultor@gmail.com

My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect. 
Thanks :)

Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano. 
Gracias:)

Comments (0)

Publicar un comentario en la entrada