Sentences with phrase «sea ice at»

Not only is the Arctic sea ice at a record low level, but now the ice on the opposite end of the Earth, Antarctica, is also rapidly retreating to record low levels as well.
Multiyear sea ice reached a minimum between ~ 8500 and 6000 years ago, when the limit of year - round sea ice at the coast of Greenland was located ~ 1000 kilometers to the north of its present position.
If you will take the trouble to go over what has been written on this thread, and sort out my posts, I think you will see that I have demonstrated, by simple science and logic, that if there is a rational discussion of what is happening to Antarctic sea ice at the same time as Arctic sea ic is discussed, the only conclusion one can come to is that whatever is happening in the Arctic this year, it is purely a regional effect.
«Will's focus on «global» sea ice at two arbitrarily selected points of time is a distraction.
The extent of Arctic sea ice at the peak of the summer melt season now typically covers 40 percent less area than it did in the late 1970s and early 1980s.
Then in the 1970s the sea ice at the Arctic recovered and the globe again struggled with bitterly cold and long -LSB-...]
I can not see how we can have a rational discussion unless we discuss Antarctic sea ice at the same time.
The final image in the series, shown above, shows the sea ice at it lowest point so far this season.
The rate of freeze and thaw can not possibly be the same for sea ice at both poles.
Northern spring thaw begins with sea ice at a record low.
After a cool Arctic summer, sea ice at the North Pole has recovered somewhat from last year's record low extent.
(Part of the How to Talk to a Climate Skeptic guide) Objection: Sea ice at the north pole recovered a whopping 9.4 percent from 2007 to 2008 despite the doom and gloom predictions of the alarmists.
For example, additional evidence of a warming trend can be found in the dramatic decrease in the extent of Arctic sea ice at its summer minimum (which occurs in September), decrease in spring snow cover in the Northern Hemisphere, increases in the global average upper ocean (upper 700 m or 2300 feet) heat content (shown relative to the 1955 — 2006 average), and in sea - level rise.
Comparatively, saltwater freezes to form a layer of sea ice at temperatures of -1.7 °C (NOAA).
«In the 1980s, the Arctic sea ice at the end of the summer was about the size of the lower 48 U.S. states,» he explained.
Sea ice at both poles has been expected to decline as the planet heats up from the buildup of greenhouse gases in the atmosphere.
By mid-century, the Arctic may have warmed so much that summers could have no sea ice at all.
More sea ice at the end of summer 2013 may be offset somewhat by a warm Arctic winter in 2013/2014.
No that is what AGW people [your ilk, kith and kin do] For someone who claims to be abreast of things and publishes lots of misleading links it is of great concern that you are not aware of all the «scientific» claims that the warmer weather is making the large increase in sea ice at the South Pole but not the North Pole.
Schneefan writes that it should be clear to global warming / polar researchers that sea ice at the South Pole is not melting, but has in fact been growing for 37 years!
The Sun just heats the oceans around the equator which just adds to the chaos just like the cold desalinated but melting sea ice at the arctic adds to the chaos, but not essentially driving any ocean.
But it seems to me using the amount of sea ice at any one time in the Arctic as some sort of gauge for existence of warming or cooling or to determine a trend in temperatures in anything but long time scales is folly.
NASA's Operation IceBridge is a six - year mission to survey land and sea ice at the poles.
Climate change is pushing temperatures up most rapidly in the polar regions and left the extent of Arctic sea ice at 1.79 million square miles at the end of the summer melt season.
NSIDC scientist Julienne Stroeve travels to the Arctic Ocean to study sea ice at its lowest extent since satellites started measuring it in 1979.
NASA, insightfully, launched their satellite to study sea ice at the beginning of a 30 year warming cycle.
We compared 23,000 days of observations in those records with late twentieth - century observations, and concluded that the extent of the sea ice at the end of winter was pretty much the same in the nineteenth and late twentieth century, but that the end - of - summer Arctic sea ice retreat is greater today than it was then.
Is polar sea ice at a record low this winter of 2017/18?
A key question to be addressed was: How important were initial conditions of the sea ice at the end of spring versus anomalous summer meteorological forcing in driving the second sequential major September sea ice minimum?
As noted last month, this range depends in part on the relative weight that the respondents give to «initial conditions,» e.g., age and thickness of sea ice at the end of spring, versus whether summer winds in 2008 will be as supportive for ice loss as the favorable winds were in 2007.
A large sector of what was remotely sensed to be multi-year sea ice at 7 to 9 + tenths ice cover, consisting primarily of multy - year ice floes, was in fact a surface of heavily decayed ice composed of some small multi-year floes (1 tenth) interspersed in a cover dominated by heavily decayed first - year floes (1 tenths) and overlain by new sea ice in areas of negative freeboard and in open water between floes.
The following maps show the probability of encountering September sea ice at concentrations greater than 15 % (corresponding to ice extent as commonly defined) in a particular grid cell.
«For a short period in December, sea ice at the North Pole was at or close to melting, with temperatures at least 20 °C above normal.
Sea ice at the other pole, around Antarctica, also reached a record November low.
As a whole, the planet has been shedding sea ice at an average annual rate of 13,500 square miles (35,000 square kilometers) since 1979, the equivalent of losing an area of sea ice larger than the state of Maryland every year.»
To clarify, sea ice at the Arctic (North Pole) is all there is, while sea ice at the Antarctic (South Pole) is in addition to the immense glacial ice that covers the land.
The increases used were sufficient to melt all sea ice at high latitudes, and amounted to 15 % on the global average.
Could well be much more sea ice at minimum this year than last.
A 40 % concentration cutoff; open water areas could have sea ice at concentrations less than 40 %.
Translated by Google from this press release in German at the Alfred Wegener Institute in Germany: Never so much sea ice at Antarctica in the last 30 years In light of global warming, it seems paradoxical that the sea ice cover of the Southern Ocean has covered a larger area in the past month than...
I've written quite a bit over the past few years about the death spiral of sea ice at the North Pole.
This follows the amount of sea ice at both poles, Arctic and Antarctic.
Antarctic Sea Ice at record highs?
Scientists at the National Snow and Ice Data Center, in Boulder, Colorado measured the sea ice at the end of the 2012 summer period of melting and the measurements do not bode well for the extraordinary wildlife, ecology and cultures of the region.
And whenever it happens, scientists expect it will bring on the disappearance of summer sea ice at the top of the Earth, which could have drastic consequences worldwide.
The sea ice at the end of this summer's period of melting is predicted to match or beat the all - time record low of 2007 and one research group at the University of Bremen in Germany has already announced that the ice this year has already set a record.
Arctic sea ice at last Sept. minima was 1.3 millon sq kms greater than 2012, qnd 600,00 sq kms greater than 2007 A result of changing ocean currents, not CO2. . .
The sea ice at the bottom of the world is at record low levels and still plunging.
There have been a few moments — like when I was standing too close to an open - water gap in the floating sea ice at the North Pole, until a bearlike Russian camp worker pulled me back, explaining in broken English that a tourist had fallen into the 14,300 - foot - deep, 28 - degree water that way the year before.
You can find out more (and see links to my earlier coverage of Arctic sea - ice trends, and what's going on with sea ice at the other end of the planet) in my latest post on Dot Earth.
a b c d e f g h i j k l m n o p q r s t u v w x y z