ice penetrating radar – Shamskm: A site to exchange knowledge and solutions

Hidden Greenland Canyons Mean More Sea Level Rise

By Guest PostMay 27, 2014Environmentbiological particles, carlos cordon cardoseparate, elisabeth mclellan, eric rignot, glacial melt, ice penetrating radar, ranger insurance report, schutzlose helden, sea-level rise, uci, west antarctica, wildtierkriminalitaet

Scientists at NASA and the University of California, Irvine (UCI), have found that canyons under Greenland’s ocean-feeding glaciers are deeper and longer than previously thought, increasing the amount of Greenland’s estimated contribution to future sea level rise.

“The glaciers of Greenland are likely to retreat faster and farther inland than anticipated, and for much longer, according to this very different topography we have discovered,” said Mathieu Morlighem, a UCI associate project scientist who is lead author of the new research paper. The results were published Sunday in the journal Nature Geoscience. (more…)

Scientists Discover New Site of Potential Instability in West Antarctic Ice Sheet

By Guest PostMay 12, 2012Environmentaircraft, Antarctica, austin, basin, british antarctic survey, computer model, don blankenship, duncan young, filchner ronne ice shelf, ice penetrating radar, ice sheet change, martin siegert, new jersey, pine island glacier, sea level, sub glacial basin, thwaites glacier, university of edinburgh, university of texas, wais, warmer ocean, weddell sea, west antarctic ice sheet

AUSTIN, Texas — Using ice-penetrating radar instruments flown on aircraft, a team of scientists from the U.S. and U.K. have uncovered a previously unknown sub-glacial basin nearly the size of New Jersey beneath the West Antarctic Ice Sheet (WAIS) near the Weddell Sea. The location, shape and texture of the mile-deep basin suggest that this region of the ice sheet is at a greater risk of collapse than previously thought.

Team members at The University of Texas at Austin compared data about the newly discovered basin to data they previously collected from other parts of the WAIS that also appear highly vulnerable, including Pine Island Glacier and Thwaites Glacier. Although the amount of ice stored in the new basin is less than the ice stored in previously studied areas, it might be closer to a tipping point. (more…)

New Map Reveals Giant Fjords Beneath East Antarctic Ice Sheet

By Guest PostJune 4, 2011Environmentairborne geophysical instruments, antarctic ice sheet, Antarctica, aurora subglacial basin, australia, computer modelers, dc 3 aircraft, donald blankenship, duncan young, earth, east antarctic ice sheet, east antarctica, fjords, global sea level, high resolution topographic map, ice cut channels, ice penetrating radar, icecap, icecap project, investigating the cryospheric evolution of the central antarctic plate, sea level, sea level fluctuations, texas, university of texas at austin, world war

AUSTIN, Texas — Scientists from the U.S., U.K. and Australia have used ice-penetrating radar to create the first high-resolution topographic map of one of the last uncharted regions of Earth, the Aurora Subglacial Basin, an immense ice-buried lowland in East Antarctica larger than Texas.

The map reveals some of the largest fjords or ice cut channels on Earth, providing important insights into the history of ice in Antarctica. The data will also help computer modelers improve their simulations of the past and future Antarctic ice sheet and its potential impact on global sea level. (more…)

Tag Archives: ice penetrating radar

Hidden Greenland Canyons Mean More Sea Level Rise

Scientists Discover New Site of Potential Instability in West Antarctic Ice Sheet

New Map Reveals Giant Fjords Beneath East Antarctic Ice Sheet