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Latest ICESat Stories

2014-10-16 16:21:33

WASHINGTON, Oct. 16, 2014 /PRNewswire-USNewswire/ -- NASA is carrying out its sixth consecutive year of Operation IceBridge research flights over Antarctica to study changes in the continent's ice sheet, glaciers and sea ice. This year's airborne campaign, which began its first flight Thursday morning, will revisit a section of the Antarctic ice sheet that recently was found to be in irreversible decline. http://photos.prnewswire.com/prnvar/20081007/38461LOGO For the next several...

2014 Global Hawk
2014-09-17 03:00:21

Ellen Gray, NASA’s Goddard Space Flight Center Looking out the window of a commercial plane during takeoff is like taking the nickel tour of the profile of the atmosphere. As the plane ascends, what may start as a gloomy day on the ground, can turn into rain streaking across the window as you pass through the white-gray cloud, and then sunny skies above once the plane reaches cruising altitude. NASA’s Cloud Physics Lidar (CPL) instrument, flying aboard an unmanned Global Hawk...

Global Ecosystem Dynamics Investigation lidar
2014-09-08 11:37:53

Elizabeth Zubritsky, NASA's Goddard Space Flight Center A laser-based instrument being developed for the International Space Station will provide a unique 3-D view of Earth’s forests, helping to fill in missing information about their role in the carbon cycle. Called the Global Ecosystem Dynamics Investigation (GEDI) lidar, the instrument will be the first to systematically probe the depths of the forests from space. The system is one of two instrument proposals recently selected for...

Arctic Melt Ponds
2014-08-05 03:00:50

Kate Ramsayer, NASA's Earth Science News Team Even from 65,000 feet above Earth, aquamarine melt ponds in the Arctic stand out against the white sea ice and ice sheets. These ponds form every summer, as snow that built up on the ice melts, creating crystal clear pools. On July 16 and July 17, NASA’s ER-2 aircraft flew above Alaskan glaciers and to the North Pole, carrying an instrument called the Multiple Altimeter Beam Experimental Lidar, or MABEL. MABEL is a laser altimeter,...

Space Laser To Collect Earth Elevation Data During ICESat-2 Mission
2014-06-04 06:26:59

redOrbit Staff & Wire Reports - Your Universe Online The laser instrument component of NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is currently being integrated and tested at the Goddard Space Flight Center in Maryland, US space agency officials announced on Tuesday. The instrument, which is known as the Advanced Topographic Laser Altimeter System (ATLAS), will be used to measure the elevation of the planet’s surfaces, including forests, oceans and even ice...

NASA IceBridge Wraps Up Arctic Field Campaign
2014-05-29 03:43:26

By George Hale, NASA Starting With Sea Ice IceBridge's campaign began on Mar. 10 when NASA's P-3 research aircraft left Wallops for Thule. For the first part of the campaign, researchers studied Arctic sea ice from Thule and Fairbanks, Alaska. Early in each campaign IceBridge spends a week in Alaska to survey sea ice north of Alaska. In addition, researchers study sea ice conditions across the entire Arctic Basin traveling from Thule to Fairbanks and back. IceBridge's sea ice...

2014-03-12 12:20:43

WASHINGTON, March 12, 2014 /PRNewswire-USNewswire/ -- Researchers aboard NASA's P-3 research aircraft left the agency's Wallops Flight Facility in Wallops Island, Va., March 10 for Greenland to begin a new season of collecting data on Arctic land and sea ice. http://photos.prnewswire.com/prnvar/20081007/38461LOGO The mission, known as Operation IceBridge, is to gather data on changes to polar ice and maintain continuity of measurements between NASA's Ice, Cloud and Land Elevation...

NASA Study Points To Infrared-Herring As Cause Of Apparent Amazon Green-Up
2014-02-07 10:42:54

Kathryn Hansen, NASA For the past eight years, scientists have been working to make sense of why some satellite data seemed to show the Amazon rainforest "greening-up" during the region's dry season each year from June to October. The green-up indicated productive, thriving vegetation in spite of limited rainfall. Now, a new NASA study published today in the journal Nature shows that the appearance of canopy greening is not caused by a biophysical change in Amazon forests, but instead...

NASA's New Laser Technology Tracks Arctic Ice With Precision
2014-01-29 06:52:00

April Flowers for redOrbit.com - Your Universe Online Flying over Greenland and the Arctic Ocean in April 2012, a high-altitude aircraft completed the first polar test of a new laser-based technology designed to measure the height of Earth from space. That instrument was the Multiple Altimeter Beam Experiment Lidar (MABEL), an airborne test bed instrument designed for NASA's ICESat-2 mission, which is slated for launch in 2017. MABEL has returned new results demonstrating that a...


Word of the Day
maffling
  • To stammer.
  • Present participle of maffle, to stammer.
  • A simpleton.
The word 'maffle' may come from a Dutch word meaning 'to move the jaws' or a French word meaning 'having large cheeks'.