Sentences with phrase «sea ice formed at»

Not exact matches

the south - bound expedition had cleared that vast plain of floating ice which flows down from the great mountains of the interior and covers the southern part of Ross Sea throughout an area above 20,000 square miles with an ice sheet approximately 800 feet in thickness, and had begun to climb the heights which form the mountainous embayment at the head of Ross Sea.

First of all, less sea ice is forming in the region, and secondly, oceanographic recordings from the continental shelf break confirm that the warm water masses are already moving closer and closer to the ice shelf in pulses,» says Dr Hartmut Hellmer, an oceanographer at the AWI and first author of the study.

However, many of the sources along the continental slope lie at cold depths in which ices have formed at high pressures within sea - floor sediments, which once trapped methane produced by microbes living there.

The upper part of the modern Arctic Ocean is flushed by North Atlantic currents while the Arctic's deep basins are flushed by salty currents formed during sea ice formation at the surface.

During glaciation, water was taken from the oceans to form the ice at high latitudes, thus global sea level drops by about 120 meters, exposing the continental shelves and forming land - bridges between land - masses for animals to migrate.

Rothko's evanescent «Slow Swirl at the Edge of the Sea,» with its delicate biomorphic forms twirling on seeping white, does a wonderful tango with the white - cake - icing impasto of Pollock's «Shimmering Substance.»

Sea ice is critical for polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the water column does not support phytoplankton growth; and (2) as the ice melts, releasing organisms into the surface water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of polar seas.

Sea ice is such a good indicator of weather and geophysical events, I can tell where the center of a high pressure is, especially by looking at newly formed leads, the center of a powerful high punches a hole through the ice!

Large floating ice shelves had formed in the Ross Sea and Weddell Sea marine embayments after WAIS had collapsed in those sectors after the LGM, and I had concluded that these ice shelves, being confined and pinned at places to the sea floor, were now buttressing these sectors of WAIS, preventing further collapSea and Weddell Sea marine embayments after WAIS had collapsed in those sectors after the LGM, and I had concluded that these ice shelves, being confined and pinned at places to the sea floor, were now buttressing these sectors of WAIS, preventing further collapSea marine embayments after WAIS had collapsed in those sectors after the LGM, and I had concluded that these ice shelves, being confined and pinned at places to the sea floor, were now buttressing these sectors of WAIS, preventing further collapsea floor, were now buttressing these sectors of WAIS, preventing further collapse.

(57j) For surface + tropospheric warming in general, there is (given a cold enough start) positive surface albedo feedback, that is concentrated at higher latitudes and in some seasons (though the temperature response to reduced summer sea ice cover tends to be realized more in winter when there is more heat that must be released before ice forms).

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

Any existing ice this year will form the basis of the multi-year ice, yes — but the sea forms at the bottom, in contact with sea water, and melts at the top — so at the end of next summer, all of this year's ice could have melted off the top, leaving only the new ice beneath, possibly thinner than this year.

At a Russian tourist camp on sea ice floating near the North Pole in 2003, a crack formed in a matter of hours.

Rather it claims that decreased ozone increases the velocity of the circumpolar vortex, thus breaking up pack ice and allowing more ice to form at the surface, thereby contributing to greater sea ice extent.

«The Aqua satellite will tell us about water in all of its forms,» said Dr. Claire Parkinson, a sea ice expert and Aqua project scientist at the Goddard Space Flight Center in Greenbelt, Md., which is in charge of the program.

They still think that the Antarctic surface is warming, not cooling like you now believe because of this Hansen paper: «In contrast, the Southern Ocean (specifically the region where Antarctic sea ice forms) has been warming at 0.17 °C per decade.»

One of the interesting things looking at sea ice from cryosphere today, is how rare it is now for ice to form in much of the Baltic (last year was the first year in a long time that it got very far south) and other peripheral areas.

I have alluded to Phillips» opinion, because I see in Geikie's late work that reference is made to the fact that from the foot of glaciers in Greenland streams of water issue and unite to form considerable rivers, one of which, after a course of forty miles, enters the sea with a mouth nearly three - quarters of a mile in breadth — the water flowing freely at a time when the outside sea was thickly covered with ice.

UPDATE: Sea ice condition of Hudson Bay at 1 November 2016 below from the Canadian Ice Service (some slushy ice looks to be forming along the coast north of Churchill — this is how freeze - up startice condition of Hudson Bay at 1 November 2016 below from the Canadian Ice Service (some slushy ice looks to be forming along the coast north of Churchill — this is how freeze - up startIce Service (some slushy ice looks to be forming along the coast north of Churchill — this is how freeze - up startice looks to be forming along the coast north of Churchill — this is how freeze - up starts).

At that point, you will very likely hear, «look at all that sea - ice that's forming in the Arctic!&raquAt that point, you will very likely hear, «look at all that sea - ice that's forming in the Arctic!&raquat all that sea - ice that's forming in the Arctic!»

Climate scientists at the National Center for Atmospheric Research (NCAR) present evidence in a new study that they can predict this rate, and hence anticipate whether the Arctic sea ice that forms in the winter will grow, shrink, or hold its own over decade - long time spans.

However, as you'll see by the sea ice thickness maps below, there may be good reason for the lack of ringed seal lairs, and a general lack of seals except at the nearshore lead that forms because of tidal action: the ice just a bit further offshore ice looks too thick for a good crop of ringed seals in all three years of the study.

Because of their large size, tabular icebergs often travel great distances, and their movement can affect ocean circulation, the formation of bottom water (the dense layer of water at the very bottom of the ocean) and sea ice, and the productivity of life - forms in their path.

If you think about it and if they «are» right about both the causes and the effects (melting ice caps, raising sea levels — e.g. increased ocean surface worldwide, increased surface temperatures on land and at sea and erratic excesses in weather) then the results may well be an eventual drastic swing the other day as we see increases in reflection, evaporation and conversion of «greenhouse» gases back into inert forms!

Comparatively, saltwater freezes to form a layer of sea ice at temperatures of -1.7 °C (NOAA).

Also, regarding subsea volacanic eruptions — a volcanic eruption involves release of magma at several thousand degrees C plus superheated gases — when that hits cold sea water you are going to have a very violent and explosive change of form from lquid water to steam combined with the release of dissolved gases (mostly CO2)-- I am not sure what laws of Chemistry and Physics you are looking at, but I would suggest that that those bubbles and heated gases and water will rise to to the surface very quickly and have a major local effect on any nearby ice.

A landmark new study in Nature Climate Change finds the melting of the sea ice over the last 30 years at a rate of 8 % per decade is directly linked to extreme summer weather in the US and elsewhere in the form of droughts and heatwaves.

At what point does winter sea ice not form is the essence of the question.