Sentences with phrase «ice shelf thickness»

These missions - satellite radar altimetry projects overseen by the European Space Agency (ESA)- lasted from 1994 to 2012, providing the researchers plenty of data that could even be overlapped and compared to ensure an accurate assessment of ice shelf thickness for more than a decade.

To determine how much ice and snowfall enters a specific ice shelf and how much makes it to an iceberg, where it may split off, the research team used a regional climate model for snow accumulation and combined the results with ice velocity data from satellites, ice shelf thickness measurements from NASA's Operation IceBridge — a continuing aerial survey of Earth's poles — and a new map of Antarctica's bedrock.

Antarctic ice shelf thickness changes calculated from ICEsat data.

For six weeks the researchers collected radar data to map changes in ice shelf thickness to understand the processes that contribute to melting at its base.

Not exact matches

The ice shelves gained thickness.»

In the hot spots of the Amundsen and Bellinghausen seas, the ice shelves lost 18 % of their thickness in less than 20 years.

«If we remove these buttressing ice shelves, unstable ice thicknesses would cause the grounded West Antarctic Ice Sheet to retreat rapidly again in the futuice shelves, unstable ice thicknesses would cause the grounded West Antarctic Ice Sheet to retreat rapidly again in the futuice thicknesses would cause the grounded West Antarctic Ice Sheet to retreat rapidly again in the futuIce Sheet to retreat rapidly again in the future.

«The ice shelf generally breaks at points that are between a half and full thickness of the ice sheet from the edge,» summarises Christmann.

Ingeniously beating swords into ploughshares, Australian scientists have adapted an ageing British torpedo to measure the thickness of the Antarctic ice shelf as it zips along under the ice.

One example offered in their paper is typical: On Oct 3, 2015, an NSF / NCAR research aircraft took off from southern Chile and flew south to measure the thickness of the Antarctic ice shelf.

A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain areas over...

Once in the ice shelf cavity we had neither detailed information on the thickness of the ice, nor the depth of the water.»

Ice shelf - A floating slab of ice of considerable thickness extending from the coast (usually of great horizontal extent with a level or gently sloping surface), often filling embayments in the coastline of the ice sheeIce shelf - A floating slab of ice of considerable thickness extending from the coast (usually of great horizontal extent with a level or gently sloping surface), often filling embayments in the coastline of the ice sheeice of considerable thickness extending from the coast (usually of great horizontal extent with a level or gently sloping surface), often filling embayments in the coastline of the ice sheeice sheets.

Scientists from the University of Erlangen - Nuremberg Institute of Geography and from the Laboratoire de Glaciologie et Gophysique de l'Environnement in Grenoble, France, used radar data from satellites such as ESA's Envisat and observations of ice thickness from airborne surveys in a complex model to demonstrate, for the first time, how the buttressing role of the ice shelves is being compromised as the shelves decline.

The study uses reconstructions of ice accumulation, satellite and aircraft readings of ice thickness, and changes in elevation and ice velocity to determine how fast ice shelves melt and compare the mass lost with the amount released by the calving, or splitting, of icebergs.

On time scales of years to centuries, the largest changes in tides around the ice sheets are likely to be caused by changes in the extent and thickness of ice shelves.

It is noteworthy that the model over-predicts ice thickness along the North American and Greenland shelf margin.