Quantcast
Last updated on April 16, 2014 at 17:34 EDT

Latest Ice sheet Stories

2009-10-19 11:25:00

New ground measurements made by the West Antarctic GPS Network (WAGN) project, composed of researchers from The University of Texas at Austin, The Ohio State University, and The University of Memphis, suggest the rate of ice loss of the West Antarctic ice sheet has been slightly overestimated. "Our work suggests that while West Antarctica is still losing significant amounts of ice, the loss appears to be slightly slower than some recent estimates," said Ian Dalziel, lead principal...

3a2e1a384a8e2233e4ec8e876915032e1
2009-10-17 06:55:00

A NASA plane, outfitted with lasers and ground-penetrating radar, made it first flight over Antarctica in hopes of better understanding how melting ice could swamp the planet. On a mission to fly as low as 1,000 feet (300 meters) over the icy continent, the DC-8 left for an 11 hour trip out of Punta Arenas, Chile on Friday. Their goal: to understand just how warm ocean currents may be pulling the ice sheets seaward, melting their undersides. According to a study published in the journal...

2009-10-08 10:30:00

WASHINGTON, Oct. 8 /PRNewswire-USNewswire/ -- NASA begins a series of flights Oct. 15 to study changes to Antarctica's sea ice, glaciers and ice sheets. The flights are part of Operation Ice Bridge, a six-year campaign that is the largest airborne survey ever made of ice at Earth's polar regions. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Researchers will work from NASA's DC-8, an airborne laboratory equipped with laser mapping instruments, ice-penetrating radar...

ce0a799973f0e7417a9fb1aae07478a6
2009-10-08 09:56:12

Low-level aerial surveys aim to understand rapid Antarctic melting Starting this month, a giant NASA DC-8 aircraft loaded with geophysical instruments and scientists will buzz at low level over the coasts of West Antarctica, where ice sheets are collapsing at a pace far beyond what scientists expected a few years ago. The flights, dubbed Operation Ice Bridge, are an effort by NASA in cooperation with university researchers to image what is happening on, and under, the ice, in order to...

2009-10-06 14:50:30

NASA will hold a media teleconference at 11:30 a.m. EDT on Thursday, Oct. 8, to preview the agency's largest airborne research effort ever to study Antarctic ice sheets, ice shelves and sea ice. The flights are part of NASA's Operation Ice Bridge, a six-year airborne campaign to each of Earth's polar regions that will extend and expand NASA's multi-year record of space-based observations of ice conditions. Advancing scientific understanding of the behavior of polar ice is needed to improve...

8c4aae8c2129895bab3892e4bdb2874b
2009-10-01 12:00:00

The U.S. space agency says it is ready to start a study of the Earth's southern ice-covered regions to identify changes in sea ice, ice sheets and glaciers. On Oct. 12, NASA's Operation Ice Bridge resumes when the space agency's DC-8 -- the largest aircraft in its science fleet -- leaves the Dryden Flight Research Center in California for Punta Arenas, Chile, where it will be based through mid-November. For six weeks, the Ice Bridge team will traverse the Southern Ocean for up to 17 flights...

2009-10-01 12:05:20

Palynomorphs from sediment core give proof to sudden warming in mid-Miocene era For Sophie Warny, LSU assistant professor of geology and geophysics and curator at the LSU Museum of Natural Science, years of patience in analyzing Antarctic samples with low fossil recovery finally led to a scientific breakthrough. She and colleagues from around the world now have proof of a sudden, remarkably warm period in Antarctica that occurred about 15.7 million years ago and lasted for a few thousand...

1f8f1ebba9d0ee993e8ae06c24aa85661
2009-09-30 06:03:09

At an Oxford University climate conference, experts announced that sea levels across the globe will almost inevitably rise more than 6 feet. "The crux of the sea level issue is that it starts very slowly but once it gets going it is practically unstoppable," said Stefan Rahmstorf, a scientist at Germany's Potsdam Institute and a broadly respected sea level expert. "There is no way I can see to stop this rise, even if we have gone to zero emissions." According to Rahmstorf, the best outcome...

7b1aa2234c9b46fc1068f02be3893d2e1
2009-09-28 14:35:00

Scientists are taking a more in-depth view of how climate change could affect Antarctica's ice, and how even a small change in temperature could lead to a global rise in sea levels. "If you're going to have even a few meters it will change the geography of the planet," Rajendra Pachauri, head of the U.N.'s Intergovernmental Panel on Climate Change (IPCC) told Reuters. "Greenland and Antarctica are two huge bodies of ice sitting on land that could really have very serious implications for the...

88ca49659a89590dbd82a69599d39a091
2009-09-24 12:25:25

According to a study that might help predict rising sea levels linked to climate change, scientists are surprised at how fast coastal ice in Antarctica and Greenland is thinning. Scientists at the British Antarctic Survey (BAS) and Bristol University said that glaciers speeding up when they flowed into the sea caused the biggest loss of ice, which was seen by analysis of missions of NASA satellite laser images. "We were surprised to see such a strong pattern of thinning glaciers across such...