Sentences with phrase «southern polar»

During most of the Silurian Period, the vast Panthalassic Ocean covered the northern polar regions, the supercontinent of Gondwana stretched over the southern polar region, and a ring of at least six continents spanned the Equator and middle latitudes.

Satellite and surface temperature measurements of the southern polar area show no warming over the past 37 years.

Given that the northern polar region is dominated by water, whereas the southern polar region is dominated by land, one would expect a greater temperature response to changes in ice extent in the Arctic than Antarctica.

The annual mean forcing from these cloud systems is in the range of — 45 to — 55 W m — 2 and effectively these cloud systems are shielding both the northern and the southern polar regions from intense radiative heating.

Apropos of southern polar warming, there may be quite a bit of carbon under the ice sheets: http://theidiottracker.blogspot.com/2012/09/the-antarctic-carbon-feedback-worst.html

From ice core data we can see that on approximately 1,500 - year cycles, the northern polar region has warmed while the southern polar region has cooled.

Loss of the Antarctic ice shelves, which extend from the southern polar land mass over the underwater continental shelf, are likely to result in the glaciers behind them flowing more rapidly into [continue reading...]

How does the 100 % attribution you believe in work in the Southern polar climates?

Specific locations can cool or warm, but overall the trend is down for the southern polar region.

Richard, as I pointed out elsewhere in this thread, the ozone hole facilitates cooling in the southern polar region while the circumpolar vortex block warm air advection from the north.

And in the Southern Ocean surrounding Antarctica an ominous bulge of water near the southern polar zone became an indicator of an increasing rate of melt from some of the largest glaciers on Earth.

It is true that this is consistent with the idea that there has been continuous global warming, although it is complicated by the fact that the Antarctic sea ice extent still seems to be about the same, i.e., the «global» warming only seems to have affected the northern polar region, not the southern polar region.

Assuming that I am right in thinking that ENSO is driven by transient impulses from the southern polar front

Southern polar sea ice reached its peak at the end of August, and November, December, January and February all saw rapid declines.

The above chart documents the measured southern polar region temperatures.

In cold times, when southern polar waters are cold and the ice around the Antarctic continent is large, the snow falls on the ice shelves and does not feed the ice on land.

The second discrepancy occurring during the maximum of solar cycle 24 can be explained in terms of the unusually extended polar field reversal, with both northern and southern polar fields being simultaneously positive for over a year, leading to a higher flux of GCR particles at Earth.

Thoughts on Antarctic Sea Ice In warm times, when southern polar waters are warm and the ice around the Antarctic continent is small, the snow falls on the ice on land and builds up.

The clues found in sediments deposited during the late Holocene suggest that an ocean current that circles the southern polar region, known as Circumpolar Deep Water, flowed underneath the Cosgrove Ice Shelf and melted it.

And it is known that the southern polar regions «see - saws» with the northern — so when the north polar is on the up cycle — the south polar in on a downer (Bob Tisdale's graph of the southern ocean SSTs shows this clearly for the «global warming» period of 1980 - 2005 — and the Peninsula Region just catches a flow - in from warmer seas to the north).

The southern polar has little «amplification» and the southern hemisphere has higher annual solar insulation, a natural oscillation that shifts clouds to were they have greater reflective impact and energy where it has less atmospheric resistance, doesn't qualify as a climate impact, only a weather impact.

This southern polar zone experienced average monthly temperatures as much as 8.7 above the global average across a relatively broad zone.

Stronger mid-latitude westerly wind maxima have occurred in both hemispheres in most seasons from at least 1979 to the late 1990s, and poleward displacements of corresponding Atlantic and southern polar front jet streams have been documented.

This regarding Venus polar vortex: «The VIRTIS observations of the Southern polar region of Venus show other shapes in the core region of the vortex (Figure 5) which appear similar to the forms seen in the evolving instability features in the animation.

A new study has found that the southern polar region of Saturn's ice - covered moon Enceladus is much warmer than expected.

The southern polar region has already been cooling for several years, with an increasing ice cover.

Enceladus» southern polar region is also home to occasional jets of water vapor and icy particles (with traces of carbon dioxide and monoxide, volatile gases, and hydrocarbons) that spew from vents within the moon's so - called «tiger stripe fractures,» which create a huge plume of vapor and icy particles that extends into space and affects Saturn's magnetosphere.

It is time for nations involved in southern polar research to embrace a renewed spirit of cooperation as espoused by the founders of the Antarctic Treaty — in actions not just words.»

Using the MIRO instrument aboard Rosetta, scientists have studied the southern polar regions of its target comet at the end of their long winter season.

Agnolin and his colleagues have now compared V. iaai with other bird fossils from the southern polar regions.

One major question is how climate change may be intensifying westerly winds around Antarctica, and what those changes will do to southern polar clouds, says Andrew Vogelmann, an atmospheric scientist at Brookhaven National Laboratory in New York.

An extended blanket of clouds can be seen over the southern polar cap.

«The southern polar region represents a unique platform for observation,» he says.

Tim Binder, Shedd's vice president of animal care, led an intrepid band of Shedd Adventurers to Antarctica in mid-February, during the southern polar region's version of summer.

Not exact matches

On Earth, the brightest auroras (the high - altitude glows often called the northern and southern lights) are generated when electrons in outer space near Earth are accelerated by large electrical potentials, or voltages, along the lines in our planet's magnetic field and slam into gas molecules in the upper atmosphere above polar regions.

But the end of the polar night also means that we will soon not be able to see the stars of the Southern Hemisphere anymore.

But this also means that you have time to watch the beautiful stars of the Southern Hemisphere and that you have higher chances of seeing polar lights,» she says.

This enhanced color view of Enceladus shows much of the southern hemisphere and includes the south polar terrain at the bottom of the image.

Planetary scientist Matt Siegler at Southern Methodist University, Dallas, and colleagues made the discovery while examining NASA data known to indicate lunar polar hydrogen.

A polar vortex caused the lowest temperatures in 15 years in Texas and the rest of the southern United States.

At a hamlet on the southern end of Ellesmere called Grise Fiord, whose Inuit name means «the place that never thaws out,» the Inuit have watched the sea ice that supports their traditional seal, polar bear and whale hunting decrease every year.

A young polar bear sitting on the shore in southern Beaufort Sea, Alaska.

No U.S. polar icebreakers are currently available to support McMurdo, the logistics hub for U.S. operations on the southern continent.

For example, polar bears swim in the Arctic Ocean where they face negative temperatures whereas other bears live in warm, southern California.

In April 2011, five days before a powerful storm system tore through six southern states, NOAA's current polar - orbiting satellites provided data that, when fed into models, prompted the NOAA Storm Prediction Center to forecast «a potentially historic tornado outbreak.»

It basically puts the Southern Ocean up front as the most significant control on the evolution of the polar ice sheet.»

And the number of polar bears in the southern edge of their range, the Hudson Bay, have drastically decreased as sea ice is present for shorter and shorter amounts of time, he notes.

The frigid air and «polar vortex» that affected about 240 million people in the United States and southern Canada will depart during the second half of this week, and a far - reaching January thaw will begin, according to AccuWeather.com.

Nonetheless, even if the substantial recent trend in the AO pattern is simply a product of natural multidecadal variability in North Atlantic climate, it underscores the fact that western and southern Greenland is an extremely poor place to look, from a signal vs. noise point of view, for the large - scale polar amplification signature of anthropogenic surface warming.

Enceladus is subject to forces that heat a global ocean of liquid water under its icy surface, resulting in its famous south polar water jets which are just visible below the moon's dark, southern limb.