On flights
over polar regions during geomagnetic events, airplanes can experience radio blackouts and equipment disruptions.
The study examined a 28 - year time series (1982 - 2009), which was composed of measurements taken by weather satellites passing
over the polar region.
NASA's Operation IceBridge — the airborne mission flown annually
over both polar regions — is now in its tenth year making flights over the Arctic.
«We're saying they're connected, and certainly the fact that this warming of the Arctic is taking place up in the stratosphere, and that warming
over the polar region is related to the increase in severe winter weather,» he said.
Juno is the first spacecraft to fly
over the polar regions.
And the same it seems all
over the polar region, must wait for official November data, but if the Arctic becomes permanently warmer this suggests that a gulf stream failure may be catastrophic not as much for Europe but much worser for the South Atlantic.
The negative phase brings higher - than - normal pressure
over the polar region and lower - than - normal pressure at about 45 degrees north latitude.
Chemical ozone destruction occurs
over both polar regions in local winter — spring.
Current research combines the climate and chemistry changes in the GISS model to predict future stratospheric ozone amounts both
over the polar regions and at lower latitudes.
It is surprising, therefore, that the gross underestimation of pole ward energy transport by the computer models is not reflected as cooling and expansion of the ice sheets
over the polar regions.
I was interested to read in the IPCC reports that radiative forcing
over the polar regions is less than radiative forcing elsewhere.
By convention, the high index polarity of the annular modes is defined as lower than normal pressures
over the polar regions and westerly wind anomalies along ~ 55 - 60 degrees latitude.»
We are seeing this dominance of cold air now as the cold domes that sit
over the polar regions expand (Figure 1).
The satellites pass
over the polar region several times each day to gather data; researchers can then form the data into images for analysis and publication.
Northern hemisphere winter weather patterns are a complex interplay between the upper atmosphere conditions
over polar regions and mid-latitude conditions over the oceans and on land.
Polar Stratospheric Clouds Large, diffuse, ice - particle clouds that form in the stratosphere usually
over polar regions.
Not exact matches
The team analysed data gathered
over seven years by the international Cassini probe, and found that the interactions between Titan's atmosphere, and the solar magnetic field and radiation, create a wind of hydrocarbons and nitriles being blown away from its
polar regions into space.
The northern
polar region's climate has materially changed
over the past five years, a team of 121 scientists from 14 nations concludes in a December 1 Arctic report card.
Conditions near Earth's poles can be pretty harsh, but the storms
over Saturn's
polar regions blow them away.
Now new research shows that these eruptions on the sun's surface not only send bursts of energetic particles into Earth's atmosphere causing disturbances in the magnetic field, but they may also significantly decrease the number of free electrons
over large areas in the
polar region of the ionosphere — the ionized part of the upper atmosphere.
The newly discovered phenomenon
over the South Seas boosts ozone depletion in the
polar regions and could have a significant influence on the future climate of Earth — also because of rising air pollution in South East Asia.
Although their ascent takes place
over the tropical West Pacific, these compounds amplify ozone depletion in the
polar regions.
With the gravity - mapping mission now
over, if all goes according to schedule, the probes» Thelma - and - Louise moment will occur at approximately 5:28 p.m. EST on Monday, 17 December, when the craft slam into a 2 - kilometer - tall mountain in the northern
polar regions of the moon, NASA announced in a press conference today.
Unique to the
polar region, pancake ice forms
over time as ice crystals coagulate into thicker plates, whose edges often get rounded and raised as a result of bumping into other plates.
Thirty years later — the equivalent of one Saturn year, in other words, the time the planet takes to go all the way around the Sun — and
over more than six consecutive years, researchers in the UPV / EHU's Planetary Sciences Group, in collaboration with astronomers from various countries, were able to observe Saturn's northern
polar region in detail once again and confirmed that the hexagon continued in place.
However, gravity data collected during the spacecraft's several close passes
over the south
polar region lent support to the possibility the sea might be global.
For example, in Earth atmospheric circulation (such as Hadley cells) transport heat between the warmer equatorial
regions to the cool
polar regions and this circulation pattern not only determines the temperature distribution, but also sets which
regions on Earth are dry or rainy and how clouds form
over the planet.
large areas of
polar stratospheric clouds (PSCs)-- clouds in the ozone layer - were present
over the Arctic
region at altitudes between 14 and 26 km.
This study is the latest in a growing body of research that suggests dwindling sea ice and snow cover in the
polar regions may be altering the weather
over the continents of the Northern Hemisphere.
When Cassini first encountered Titan, it observed a large outburst of methane cumulus clouds
over Titan's south
polar region.
Although these three
regions are really the pivotal geographic locations in the history of the sled dog, and although there are really only three types of dog that people today classify as huskies — Alaskan Malamutes, Alaskan Huskies and Siberian Huskies — there are actually a number of other less well known
polar breeds that developed
over time which can be differentiated by
region, height, weight and colour...
It also said, for example, it missed both
polar regions badly, had a 10 degree standard deviation
over much of the land mass, missed significant portions of the eastern ocean basins, etc..
The recipe for massive springtime ozone loss in the
polar regions, such as the annual ozone hole seen
over Antarctica during the past two decades, is fairly simple.
The S
polar region is intrinsically colder because the ice is
over land and can not be melted from the bottom, thus is always reflecting energy.
Over all, open water has spread in the Arctic this summer nearly as much as it did last summer, when
polar experts said the ice cap shrank far more than had been measured since satellites started scanning the
region 30 years ago — and probably more than it had shrunk in a century or more.
large areas of
polar stratospheric clouds (PSCs)-- clouds in the ozone layer - were present
over the Arctic
region at altitudes between 14 and 26 km.
What most people seem to forget here, is that on one hand there are fundamental thermodynamical arguments which demand that hurricane intensity increase
over time, while on the other hand, there are these two big chunks of ice sitting in both
polar regions, which will counteract the warming process in their own special way.
Scientists believe that the brown bear lineage split
over 300,000 years ago to form the
polar bear (Ursus maritimus), theorizing that a group of early brown bears became isolated in colder
regions and ultimately adapted to life on ice.
Over the last 35 years, our research team has recovered ice - core records of climatic and environmental variations from the
polar regions and from low - latitude high - elevation ice fields from 16 countries.
The range of ocean remaining frozen
over the northern
polar region reached its minimum extent for 2009 on September 12, when it covered 1.97 million square miles (5.1 million square km), and now appears to be growing again as the Arctic starts its annual cool - down, the National Snow and Ice Data Center reported.
Long story short, the
polar vortex is the result of global warming changing the semi-permanent weather system
over the arctic
regions resulting in movement of cold air masses from the arctic
region to parts of North America, such as Canada and, unfortunately, poor Buffalo.
The discovery of the so - called «ozone hole»
over the south
polar region in 1986 was so disturbing, in fact, that 197 nations agreed to ban CFC's, widely used in air conditioners and refrigerators, just a year later, in an agreement known as the Montreal Protocol.
The positive AO phase is characterized by a low - pressure center anomaly
over the entire Arctic basin or
polar cap (the
region poleward of 60 ° N) and high - pressure center anomalies in each ocean basin in the mid-latitudes.
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).
Excluding the
polar regions, most of it is
over the oceans.
The negative phase is different, and quite rare: high pressure
over the Arctic forces the cold air to spill out
over North America and Eurasia, allowing warm air to rush in to the
polar region.
However the
polar vortex remains
over the arctic
regions as a great mass of swirling freezing air that persistently circulates counter-clockwise.
In an interview with Yale Environment 360,
polar scientist Mark Serreze talks about the rapid changes he has witnessed
over more than three decades of working in the Arctic and the future stability of the
region if temperatures continue to climb.
Therefore, due to entirely natural variations in spring snow conditions
over sea ice (and thickness of the ice), 2
polar bear population sizes can vary by
region.
The high and persistent temperatures this fall are particularly extraordinary, scientists said, because the
region has already plunged into «
polar night,» the time of year when the sun no longer rises
over the North Pole.