Browsing 80 - 90 results of 241 programs for subject - Geology/Earth Science
What controls the speed of Greenland’s big outlet glaciers like the Jakobshavn? How do they interact with the climate system? And most importantly, what does the future hold for the glaciers of Greenland? In this video, glaciologist Mark Fahnestock discusses glacier dynamics and what he hopes to learn through his studies. An interview with Mel Zucker, Professor of Geology, Skyline College, San Bruno, California.
In the early 1900s, German meteorologist Alfred Wegener suggested that the earth's continents were once a single landmass that had somehow split into pieces, drifting their separate ways. Geologists the world over called his idea preposterous. Decades later, their ridicule shifted to admiration as new tools developed by the military to map the ocean floors revealed the engine that drives the continents' movement. Geology professor Mel Zucker tells the story of this brilliant earth scientist and how, long after his death, science finally caught up with Wegener's crazy idea.
The Ice Stories crew caught up with glaciologist Mark Fahnestock on his way back home after a few weeks camping near Greenland's Jakobshavn Isbræ, the most productive and among the fastest-moving glaciers in the world. In this interview, Mark describes some of the physics of this speedy glacier and why so many scientists are interested in studying the dynamics of Jakobshavn. In the summer of 2008, the only helicopter in Kangerlussuaq, Greenland, was effectively grounded by a diamond company, leaving scientists and logistics coordinators to frantically rearrange their field plans. In this video interview from Greenland, geologist Tom Neumann from the University of Vermont explains how he and his colleagues are attempting to read the history of the Greenland Ice Sheet by collecting and analyzing rocks spit out from the base of the glacier. Landings and take-offs of helicopters, a twin otter airplane, a LC-130 Hercules transport plane; and a shot of a Hagglund tracked vehicle. Transportation used in Greenland to do scientific research. Kenn Borek Twin Otter lands at the Ilulissat Airport, Greenland Interview with galciologist Sarah Das (Woods Hole Oceanographic Institution) from atop the Greenland Ice Sheet. Interview with glaciologist Ian Joughin (Applied Physics Lab, University of Washington) atop the Greenland Ice Sheet. From atop the Greenland Ice Sheet, Kristin Poinar, a graduate student at the University of Washington, describes observing first-hand the sudden rapid draining of a huge glacial lake.