Sentences with phrase «parts of the ice sheet surface»

A massive ice sheet almost completely covers Greenland, and as summertime temperatures climb and sunlight hours lengthen, parts of the ice sheet surface usually melt, especially at lower elevations near the coast.

Not exact matches

1) Mix flour, butter and icing sugar in a bowl using two knives to cut the butter until the mixture resembles fine breadcrumbs 2) Add in the egg yolks and vanilla extracts and mix well, then add iced water until the dough starts to come together 3) Shape the dough into a ball on a cool, flat, floured surface 4) Flatten dough into a disc and then wrap in plastic wrap, and chill in the refrigerator for at least 30 minutes 5) Meanwhile, peel, core and slice the apples into as thin slices as possible 6) Mix sugar and ground cinnamon powder with sliced apples and let it rest for a while 7) Pre-heat oven to 180 deg cel 8) Once dough has chilled, roll pastry dough on a sheet of parchment paper until it has expanded to the size of the tart mold (I used a rough mold the size of a large pizza) 9) Leaving at least an inch of dough free, arrange apple slices by overlapping them slightly in the shape of a circle, starting from the outermost part of the circle, until you reach the inside 10) Fold the edges of dough over the filling and then sprinkle the dough with a bit of sugar 11) Bake for about 40 - 45 minutes, or until the crust is golden brown and the apples are soft 12) Serve warm, with a side of whipped cream or ice cream (optional)

Water that collects in valleys underneath the ice sheet, in the Gamburtsev Mountains, refreezes when it passes under thinner parts of the ice sheet that are less insulated from cool surface temperatures.

«The beds at the margins of the ice sheet... are probably one of the least explored parts of Earth's surface,» said Ian Howat, a glaciologist at Ohio State University who did not participate in the research.

... Polar amplification explains in part why Greenland Ice Sheet and the West Antarctic Ice Sheet appear to be highly sensitive to relatively small increases in CO2 concentration and global mean temperature... Polar amplification occurs if the magnitude of zonally averaged surface temperature change at high latitudes exceeds the globally averaged temperature change, in response to climate forcings and on time scales greater than the annual cycle.

Other factors would include: — albedo shifts (both from ice > water, and from increased biological activity, and from edge melt revealing more land, and from more old dust coming to the surface...); — direct effect of CO2 on ice (the former weakens the latter); — increasing, and increasingly warm, rain fall on ice; — «stuck» weather systems bringing more and more warm tropical air ever further toward the poles; — melting of sea ice shelf increasing mobility of glaciers; — sea water getting under parts of the ice sheets where the base is below sea level; — melt water lubricating the ice sheet base; — changes in ocean currents -LRB-?)

Huge sheets of ice (glaciers) cover large parts of the Earth's surface.

Second, and less important but still rather spectacular, was the melting of virtually every square inch of the surface of this ice sheet over a short period of a few days during the hottest part of the summer, a phenomenon observed every few hundred years but nevertheless an ominous event considering that it happened just as the aforementioned record ice mass loss was being observed and measured.

The base is currently buried about 35 meters below the surface but the part of the ice sheet that covers the camp may start to melt by the end of the century if current warming trends continue, scientists warned.

The remaining amount is coming from increased surface melting, which is no longer confined to the southern part of the ice sheet — the amount of ice accumulating in the inland part of the ice sheet is starting to decline as well.