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Latest Ice calving Stories

2013-09-16 10:51:59

New research has revealed that more ice leaves Antarctica by melting from the underside of submerged ice shelves than was previously thought, accounting for as much as 90 per cent of ice loss in some areas. Iceberg production and melting causes 2,800 cubic kilometers of ice to leave the Antarctic ice sheet every year. Most of this is replaced by snowfall but any imbalance contributes to a change in global sea level. For many decades, experts have believed that the most important process...

Glacial Melt Minimal Effect On Sea Level
2013-08-13 09:47:09

Brett Smith for redOrbit.com - Your Universe Online Occasionally, melt water on top of a glacier will trickle down to the bedrock below and act as a lubricant for the glacier’s movements. Once thought to be a major contributor to sea-level rise, melt water was found to have only a minor effect on sea level in a new study from a team of European and American scientists. Using computer modeling based on observations of Greenland’s ice sheet, the research team concluded glacier...

Glacier Geometry Linked To Diverse Calving Patterns
2013-07-23 05:24:37

April Flowers for redOrbit.com - Your Universe Online Large stretches of ice on the coasts of Antarctica and Greenland are at risk of rapidly cracking apart and falling into the ocean in events over the coming decades that could aggravate sea level rise. The new study, published in Nature Geoscience, describes new iceberg calving simulations from the University of Michigan. "If this starts to happen and we're right, we might be closer to the higher end of sea level rise estimates for...

Surface Melt Will Continue To Dominate Greenland Ice-Loss
2013-07-10 15:13:45

Lee Rannals for redOrbit.com - Your Universe Online According to research published in the Journal of Glaciology, surface ice melt will be the dominant process controlling ice-loss from Greenland. Greenland's ice sheet is considered an important potential contributor to future global sea-level rise over the next century or longer. It contains an amount of ice that could lead to a rise of global sea-level by more than 22 feet if it completely melted. Changes in its total mass are caused...

Basal Melt Responsible For Antarctic Ice Shelf Loss
2013-06-14 06:20:18

redOrbit Staff & Wire Reports - Your Universe Online The majority of Antarctica´s ice loss is caused by warm ocean waters eating away at the undersides of ice shelves, not the sudden release and breaking away of ice masses from glaciers (a process known as calving), according to new research appearing in Friday´s edition of the journal Science. In what is being called “the first comprehensive survey of all Antarctic ice shelves,” researchers from the University...

2013-06-13 16:20:31

PASADENA, Calif., June 13, 2013 /PRNewswire-USNewswire/ -- Ocean waters melting the undersides of Antarctic ice shelves are responsible for most of the continent's ice shelf mass loss, a new study by NASA and university researchers has found. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Scientists have studied the rates of basal melt, or the melting of the ice shelves from underneath, of individual ice shelves, the floating extensions of glaciers that empty into the sea. But...

Columbia Glacier Should Stop Retreating By 2020
2012-11-27 08:30:37

April Flowers for redOrbit.com - Your Universe Online Alaska's Columbia Glacier, one of the fastest moving glaciers in the world, will cease to move by approximately 2020, according to a new study from the University of Colorado Boulder. The research team included members from CU-Boulder's Cooperative Institute for Research in Environmental Sciences, Institute of Arctic and Alpine Research, Department of Civil, Environmental, and Architectural Engineering, NASA and the Extreme Ice...

Greenland Glacier Loses An Ice Island Twice The Size Of Manhattan
2012-07-18 07:11:16

redOrbit Staff & Wire Reports - Your Universe Online Andreas Muenchow, associate professor of physical ocean science and engineering in University of Delaware´s College of Earth, Ocean, and Environment, reports the calving of an island two times the size of Manhattan on July 16, 2012, in his “Icy Seas” blog. Muenchow credits Trudy Wohleben of the Canadian Ice Service for first noticing the fracture. MODIS, the Moderate Resolution Imaging Spectroradiometer aboard...

Operation IceBridge: Flying Through A Crack On The Ice
2012-03-01 10:19:05

[ Watch the Video ] In October 2011, researchers flying in NASA´s Operation IceBridge campaign made the first-ever detailed, airborne measurements of a major iceberg calving event while it was in progress. Four months later, the IceBridge team has mapped the crack in Antarctica´s Pine Island Glacier in a way that allows glaciologists and the rest of us to fly through the icy canyon. The above image is a still frame captured from a three-dimensional, virtual flight through the...

Spectacular Photos Show Birth Of World’s Biggest Iceberg
2012-02-03 06:07:52

[ Watch the Video ] Breathtaking images taken from outer-space by NASA's Operation IceBridge -- the largest airborne survey of Earth's polar ice ever flown -- reveal a 19-mile long, 195 ft.-deep crack across a floating ice shelf in Antarctica that could produce the world´s largest iceberg. The rift was first discovered last October, but IceBridge scientists returned soon after to obtain the first-ever detailed airborne measurements of the 310 square mile iceberg calving in...