Browsing 130 - 140 results of 242 programs for subject - Geology/Earth Science
At the National Ice Core Lab in Denver, Colorado, scientists study ice cores in a Class 100 clean room lab kept at minus 7 degrees F. The Jakobshavn Isbræ is among the fastest-moving glaciers in the world. The Jakobshavn is an outlet glacier, one of the few places where the giant Greenland ice sheet can shed ice in the form of gigantic icebergs. This timelapse video (100x real speed) from glaciologist Mark Fahnestock shows one of these massive calving events. Notice the dark blue ice that surfaces when the iceberg flips over in the ice-choked Ilulissat icefjord. Time interval on this timelapse is 10 seconds per frame. In this video, ride in a special Mattracks truck across the ice sheet with geologist Christina Riesselman as she travels with ANDRILL Staff Scientist Richard Levy from McMurdo Station to the ANDRILL drill site. They investigate the truck’s special wheels, observe beautiful panoramas of the Transantarctic Mountains, and hear the drill running at the drill site. Scientist working on the South Pole Telescope explain data collection, focusing on the telescope's receiver, a precise instrument with a thousand "eyes" pointed to the distant universe. Glaciologist and Ice Stories correspondent Nadine Quintana Krupinski gives us a brief tour of her deep field camp on the West Antarctic Ice Sheet. Hear more from scientists working on the Ice Cube telescope at the South Pole. Meet glaciologist Slawek Tulaczyk and his team, who work in the fast-emerging field of ice sheet dynamics. They speak to us just after returning from a month at a remote camp on the West Antarctic Ice Sheet. Watch as three giant helium balloons are launched above Antarctica to study climate history; listen as scientists talk about balloon research. Aeolian Landscape is an exhibit in which a miniature wind-swept desert landscape is recreated by an electric fan and finely ground sand that mimics the process of wind picking up and depositing small particles. Visitors can change the direction of the fan, influencing the shape of the dunes. Scientists at Palmer Research Station in Antarctica talk about their research: How is the rich marine ecosystem just offshore responding to melting sea ice and global climate change?