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Public contact: Science, Technology and Business Division (202) 707-5664; NASA Goddard Space Flight Center (301) 614-6627

October 27, 2009

Scientist Thorsten Markus to Discuss “On Thin Ice: The Changing Ice Cover on Polar Oceans,” Nov. 17

NASA scientist Thorsten Markus has closely observed the changes in the polar sea-ice cover, sometimes doing field work directly on the ice or from a NASA airplane and other times via satellite remote sensing. He will be sharing his expertise on polar ice in a lecture at the Library of Congress on Nov. 17.

Markus, head of the Cryospheric Sciences Branch at NASA Goddard Space Flight Center, will present "On Thin Ice: Changing Ice Cover on Polar Oceans" at the Library of Congress at 11:30 a.m. on Tuesday, Nov. 17, in the Mary Pickford Theater on the third floor of the James Madison Building, 101 Independence Ave. S.E., Washington, D.C.

The illustrated lecture, the sixth in a series of programs in 2009, is presented through a partnership between the Library’s Science, Technology and Business Division and NASA’s Goddard Space Flight Center. The lecture is free and open to the public; no tickets or reservations are needed.

In his lecture, Markus will summarize recent observations and findings—together with pictures from Arctic and Antarctic research campaigns—and will put those results into the bigger climate-system picture. The focus will be on recent changes in the Arctic and in Antarctica. Markus will explain why the two hemispheres react differently to climate change, and will conclude his lecture by discussing current and future efforts to address the uncertainties and contradictions of the ice conditions.

During November 2009, Markus will be the principal sea-ice investigator on NASA’s DC-8 plane that will fly over Antarctica as part of Operation IceBridge. For more information, visit http://blogs.nasa.gov/cm/blog/icebridge (external link). Markus also is the project scientist for NASA’s upcoming ICESat-2 Mission, scheduled to be launched in 2015. Markus joined NASA after receiving his doctorate in physics from the University of Bremen, Germany, in 1995.

The Library of Congress maintains one of the largest and most diverse collections of scientific and technical information in the world. The Science, Technology and Business Division provides reference and bibliographic services and develops the general collections of the Library in all areas of science, technology, business and economics, with the exception of clinical medicine and technical agriculture, which are the subject specialties of the National Library of Medicine and the National Agricultural Library. For more information, visit www.loc.gov/rr/scitech/.

Founded in 1800, the Library of Congress is the nation’s oldest federal cultural institution and the largest library in the world, with nearly 142 million items in various languages, disciplines and formats. The Library serves the U.S. Congress and the nation both on-site, in its reading rooms on Capitol Hill, and through its award-winning website at www.loc.gov. Many of the Library’s rich resources and treasures may also be accessed via interactive exhibitions on a personalized website at myLOC.gov.

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PR 09-215
10/27/09
ISSN 0731-3527

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