Sentences with phrase «cover over the ice sheet»

It's a finding that should be reflected in current climate models to help scientists make more accurate predictions about future Greenland melt — and could become even more important in the coming years if cloud cover over the ice sheet were to increase as a result of climate change.

Not exact matches

While most duck shooters snuggle deeper under the blankets, the Maine seabirder gets up at 4 a.m., drives his boat through swells that wash over the decks and turn them into sheets of ice, sets his trawl line of decoys, anchors in the lee of a ledge and covers his boat with rockweed.

Volk: From what it is today, and yet it was massively different with ice sheets where you and I are talking right now; in New York City would have been covered with an ice sheet that was taller than the Empire State Building, that would have been right here, you know, over 20,000 years ago, and the distribution of trees and all kinds of organisms, these distributions were very different from what they are today.

What is now Lake Whillans was probably covered and uncovered by the ice sheet dozens of times as the climate swung back and forth over the past 20 million years.

On a clear day, anyone flying over Greenland on the route between North America and Europe can look down and see the bright blue patches of melted water atop the flat, blindingly white expanse of the ice sheet that covers the island, the second largest chunk of ice on Earth.

However, it's quite a different matter melting a long - lived massive ice sheet up to 1.5 km thick that covers over 70 % of the land surface (as happened at the end of the last glacial period), from melting isolated and much thinner ice caps / sheets that only cover about 11 % of the land surface (i.e. present - day).»

Ice shelves surround 75 % of Antarctica's coastline, and cover an area of over 1.561 million square kilometres (a similar size to the Greenland Ice Sheet).

A thick sheet of ice covers one half, and water runs over sharp boulders on the other.

East Antarctic ice sheet: Abrupt (geologic, but still shortish), absolutely catastrophic (even over centuries; 70 meters covers an awful lot of arable land and infrastructure, and there's no guarantee that the remaining dry land will be an Eden).

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 only comprehensive study of the Antarctic Ice Sheet mass was a 10 + year study based on continuous 24/365 satellite measurements over the period 1993 to 2003, covering 80 % of the AIS with estimates from other methods for the remaining 20 %, which can not be measured by satellites (coastal areas and polar regions).

One equal in area to the current Antarctic ice sheet covered over half of North America.

Earth's climate has varied widely over its history, from ice ages characterised by large ice sheets covering many land areas, to warm periods with no ice at the poles.

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.

In the east the Laurentide Ice Sheet pushed south into Pennsylvania covering New York state and I believe Delaware, and also into but not over Indiana, Illinois, and Ohio.

In 2011, annual snow cover extent over Northern Hemisphere continents (including the Greenland ice sheet) averaged 24.7 million square kilometers, which is 0.3 million square kilometers less than the long - term average.

Satellite pictures taken over the Arctic ice sheets show vast decreases in summer ice cover, which helps reflect the sun's rays.