NASA Science Update: Breakthrough Discoveries in Sea Level Change Research
07.07.05
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For a copy of NASA's Sea Level Resource Video please contact Sarah DeWitt at 301-286-0535 or at
Sarah.L.Dewitt at nasa.gov
Presenter #1 - Waleed Abdalati, Moderator
Dr. Abdalati will introduce the topic of sea level change, the techniques and technology used to study it, and the implications of such change.
Presenter #2 - Steve Nerem
Dr. Nerem will summarize what is known about sea level based on satellite and ground-based observations, and introduce the factors that contribute to fluctuations in sea level.
![Image of TOPEX orbiting the Earth Image of TOPEX orbiting the Earth](/images/content/121611main_topex_geodecy.gif)
Image Above: Animation of ground-based lasers and the Global Positioning Satellite fleet measuring the shape of the Earth, including global sea level. Click on the above image to play an .mpg animation. Credit: NASA
![Image of the globe showing a TOPEX dataset Image of the globe showing a TOPEX dataset](/images/content/121613main_topexssh.gif)
Image Above: Visualization of changes in sea level measured from space using data from the TOPEX/Poseidon and Jason satellites. Click on the above image to play an .mpg animation. Credit: NASA
![Image of Graph showing sea level change over time. Image of Graph showing sea level change over time.](/images/content/121606main2_nsusl.gif)
Image Above: The observed rate of sea level increase year over year, in millimeters. Click on the above image to see a high resolution version of this graph. Credit: NASA
Presenter #3 - Eric Rignot
Dr. Rignot will discuss the contribution of melting ice to changes in global sea level.
![Image of the Jakobshavn Ice Shelf Image of the Jakobshavn Ice Shelf](/images/content/121602main_jakobshavn.gif)
Image Above: Visualization of Greenland's fastest glacier, Jakobshavn Isbrae, revealing the retreat of the glacier's calving front over the past six decades. Click on the above image to play an .mpg animation. Credit: NASA
![Image showing the Larsen B ice shelf Image showing the Larsen B ice shelf](/images/content/121604main_larsen_b.gif)
Image Above: Time-lapse visualization showing the collapse of Antarctica's Larsen Ice Shelf in 2002. Click on the above image to play an .mpg animation. Credit: NASA
Presenter #4 - Laury Miller
Dr. Miller will discuss the implications of global sea level change and new research capabilities that are being directed at understanding these implications.
![Image of a graph showing sea level change due to ocean warming Image of a graph showing sea level change due to ocean warming](/images/content/121608main2_slr_thermal.gif)
Image Above: Observed change in sea level due to ocean warming over the past five decades. Click on the above image to see a high resolution version of this graph. Credit: NASA
Presenter #5 - Richard Alley
Dr. Alley will discuss the implications of large-scale sea level change on coastal regions and related environments.
Image Above: Theoretical image showing areas in the state of Florida that would be affected by a one meter rise in sea level. Click on the above image to see a high resolution version of this image. Credit: NASA
Additional Multimedia
![Image of an IceSAT pass over the planet Image of an IceSAT pass over the planet](/images/content/121640main_icesat-criss-cross-250px.jpg)
Image Above: ICESat Criss-Crosses the planet. Click on the above image to play an .mpg animation. Credit: NASA
![Image of the GRACE spacecraft orbiting the Earth Image of the GRACE spacecraft orbiting the Earth](/images/content/121638main_grace-spacecraft-250px.jpg)
Image Above: The GRACE Spacecraft Orbiting the Planet. Click on the above image to play an .mpg animation. Credit: NASA