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Topic Area: Land & Sea
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Feature
- Researchers Warm Up to Melt's Role in Greenland Ice Loss
- 04.17.08 -- Whether or not summertime melt has a significant influence on Greenland ice loss has been an endless topic of debate among scientists -- until now.
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- 2008 Arctic Sea Ice Concentration Map
- 03.18.08 -- Using the latest satellite observations from early 2008, NASA researchers and others report that the Arctic is still on 'thin ice' when it comes to the condition of sea ice cover in the region. This ice concentration map from March 9, 2008, shows maximum extent of sea ice in the Northern Hemisphere.
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- Arctic Sea Ice Distribution by Age
- 03.18.08 -- The sea ice in the Arctic is much younger than normal, with vast regions now covered by first-year ice. The left image shows February distribution of ice by its age during normal Arctic conditions (1985-2000 average), and the right illustrates February 2008 Arctic ice age distribution.
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- Algae Bloom in Antarctic Sea Ice
- 03.12.08 -- It was late summer 2007 in the Southern Hemisphere when NASA's Aqua satellite captured this image of Antarctica's Ross Sea (left). The image reveals a subtler sign of the growing season: The yellowish-green tinge of some of the sea ice is probably a bloom of algae.
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- Mega-iceberg A53a, South Atlantic
- 03.05.08 -- Astronauts captured images of this massive iceberg from the International Space Station on Jan. 18, 2008. At the time, the iceberg was in the Atlantic Ocean some distance from Tierra Del Fuego in South America. Glaciologists think this iceberg is fast approaching the point of breaking up.
Feature
- Greenland's Rising Air Temperatures Drive Ice Loss at Surface and Beyond
- 02.20.08 -- A new NASA study confirms that the surface temperature of Greenland's massive ice sheet has been rising, fueling the loss of the island's ice at the surface and throughout the mass beneath.
Multimedia
- Signs of Summer Thaw on the Antarctic Peninsula
- 02.06.08 -- The tip of the Antarctic Peninsula showed seasonal changes in late January 2008. Images captured on Jan. 24 and Jan. 30 by the Moderate Resolution Imaging Spectroradiometer on NASA's Terra satellite show a dramatic color shift, signs of the summer thaw.
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- Retreat of the Tasman Glacier
- 01.25.08 -- The Tasman Glacier, New Zealand's longest, is one of 12 that may not recover from recent melting. In November 2007, New Zealand's government announced that ice volume in the country's Southern Alps had shrunk nearly 11 percent over the previous 30 years.
Multimedia
- Cloud Streets Across Caspian Sea
- 01.11.08 -- South of the loosely packed ice in the northern part of the sea, parallel rows of clouds line up along the north-south axis of the wind. These clouds form when cold air blows over the warmer, moister air that sits over the water.
Feature
- Scientific Balloons Achieve Antarctic Flight Record
- 01.04.08 -- NASA and the National Science Foundation have achieved a new milestone in conducting scientific observations from balloons, by launching and operating three long-duration flights within a single Antarctic summer. Scientists are using the balloons to investigate the nature of ultra-high-energy cosmic rays and to search for antimatter.
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