Exploring Beneath the Antarctica Ice with Waves - Finding
a Lake and a Passage to the Ocean
This Web Seminar took place on April 16, 2012 from 6:30 p.m. to 8:00 p.m. Eastern
Time. The presenters were Dr. Robert Jacobel and Dr. Knut Christianson from the
Center for Geophysical Studies of Ice and Climate (CEGSIC) at St. Olaf College in
Northfield, Minnesota. In this Seminar, Dr. Jacobel and Dr. Christianson talked
about their climate-related research in Antarctica.
The PowerPoint, related resources from the NSTA Learning Center, and web links from
the presentation are now contained in the above resource collection. Clicking on
the collection link will place it in your Learning Center, My Library,
neatly organized under the My Resource Collections tab.
During this program, Dr. Jacobel and Dr. Christianson talked about the “fast ice
streams” of Antarctica, which are found to have speeds in excess of two meters per
day. They also discussed the sub glacial systems that drain and fill over varying
time scales, from months to years. Dr. Jacobel and Dr. Christianson also talked
about the WISSARD project, one of three international efforts now ongoing in Antarctica
to investigate sub glacial lakes. They shared information on geophysical studies
undertaken to characterize the volume and extent of Lake Whillans and to probe its
links with the rest of the sub glacial hydraulic system.
Thirty-seven (37) participants were present at the live Web Seminar in addition
to the presenter and NSTA staff. Participating educators represented the states
of Arizona, California, Georgia, Illinois, Indiana, Kentucky, Massachusetts, Missouri,
New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas,
Virginia, and Washington. In addition, one participant joined the presentation from
a location outside the United States: Turkey.
Seminar participants received one of the NSTA SciGuides. A certificate
of attendance was deposited into participants' My PD Record and Certificates
area in the NSTA Learning Center for completing the evaluation form at the end of
Here are some comments provided by the participants at the end of the Web Seminar:
- “This seminar taught me things I never knew before...I literally kept saying
‘WOW’ out loud during the presentation.”
- “Teaching Earth/Space we cover a lot about sub-glacial environments. To have
data of one on Earth is just down right COOL!! It also gives me a lot of validity
to the students when I can present relevant-to-date research!”
- “This presentation was absolutely fascinating!!!!!”
- “Pleased to have high quality content knowledge delivered so well.”
Thanks to the participants and the presenter for the learning opportunity, the interactions,
and a job well done!
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Underwritten by NSF