Sentences with phrase «glaciers and ice sheets cover»

The planet's glaciers and ice sheets cover about 11 % of the planet's surface and hold about 70 % of the world's fresh water.

Not exact matches

A glacier is made up of thousands of tons of ice which is layered in sheets and covers miles and miles.

It is difficult to obtain fossil data from the 10 % of Earth's terrestrial surface that is covered by thick glaciers and ice sheets, and hence, knowledge of the paleoenvironments of these regions has remained limited.

This led some to believe that Mars was never warm and wet but was a largely frozen planet, covered in ice - sheets and glaciers.

The space agency is launching these missions at a time when decades of observations from the ground, air, and space have revealed signs of change in Earth's ice sheets, sea ice, glaciers, snow cover and permafrost.

If that happened a natural barrier to the flow of ice from glaciers and land - covering ice sheets into the oceans would be removed.

Snow - cover and sea - ice can change quite rapidly, but glaciers and ice - sheets may require decades to millennia.

The melt - off from the world's ice sheets, ice caps and glaciers over eight years of the past decade would have been enough to cover the United States in about 18 inches (46 centimeters) of water, according to new research based on the most - comprehensive analysis of satellite data yet.

The cryosphere — frozen precipitation, snow cover, sea ice, lake and river ice, glaciers, ice caps, ice sheets, permafrost and seasonally frozen ground — is a critically important component of the Arctic Climate System.

Over the last two decades, the Greenland and Antarctic ice sheets have been losing mass, glaciers have continued to shrink almost worldwide, and Arctic sea ice and Northern Hemisphere spring snow cover have continued to decrease in extent.

Cryosphere All regions on and beneath the surface of the Earth and ocean where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers and ice sheets, and frozen ground (which includes permafrost).

The main components of the cryosphere are mountain glaciers and ice caps, floating ice shelves and continental ice sheets, seasonal snow cover on land, frozen ground, sea ice and lake and river ice.

The land ECV breakout group was asked to consider 10 ECVs related to surface observations: glaciers and ice caps / sheets, snow cover, soil moisture, fire disturbance, lakes, biomass, land cover, surface albedo, fraction of absorbed photosynthetically active radiation (FPAR), and leaf area index (LAI).

Arctic sea ice, Antarctic and Greenland ice sheets, global glacier mass, permafrost area, and Northern Hemisphere snow cover are all decreasing substantially, while ocean surface temperatures, sea level, and ocean acidification are rising [36].

These OMITTED / POORLY Represented processes include the following: oceanic eddies, tides, fronts, buoyancy - driven coastal and boundary currents, cold halocline, dense water plumes and convection, double diffusion, surface / bottom mixed layer, sea ice — thickness distribution, concentration, deformation, drift and export, fast ice, snow cover, melt ponds and surface albedo, atmospheric loading, clouds and fronts, ice sheets / caps and mountain glaciers, permafrost, river runoff, and air — sea ice — land interactions and coupling.

GIA is not caused by current glacier melt, but by the rebound of the Earth from the several kilometer thick ice sheets that covered much of North America and Europe around 20,000 years ago.