Browsing 100 - 110 results of 243 programs for subject - Geology/Earth Science
Greenland, shots taken while flying in a helicopter from the Ilulissat Airport out over the Greenland ice sheet to the remote field camp of researcher Sarah Das. From a small rubber boat on a Greenlandic lake, climate researcher Billy D'Andrea introduces some of the equipment scientists use in limnological sampling. (Limnology is the study of freshwater systems, like lakes.) 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 (60x real-time 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. Shots of the calving front of the Jakobsavn Glacier, Greenland's fastest moving glacier. Includes two shots of Mark Fahnestock's helicopter flying over. Working in the snow all day takes a certain type of skill set: digging skills, drilling skills, and snowmobile driving skills. It also helps to love what you do. Various shots of the margin of the Russell Glacier Shots on the Greenland Ice Sheet, including water running off Greenland Ice Sheet shots of melting Climate researcher Billy D'Andrea and colleagues explore the remote "back lakes" of Greenland. To understand how Earth’s climate system has changed over time, scientists need to find, develop and use natural recorders of temperature and precipitation. One natural thermometer comes in the form of alkenones: trans-fats produced by certain algae.