With current
ice conditions at 5.3 million square kilometers as of 27 August 2010 (source: National Snow and Ice Data Center, NSIDC) and two or three more weeks to go in the melt season, it is increasingly likely that the September ice extent will fall below the 2009 minimum.
I doubt that the photograph was taken on the date of the famous North Pole surfacing given the pack
ice conditions at the time.
There was no discussion in the paper of ringed seal birth lairs, or sea
ice conditions at the time of the study, but several mentions about what might happen in the future to sea ice and potential consequences for polar bears.
September 2009 sea ice extent was driven by preexisting sea
ice conditions at the end of spring, as well as variable wind patterns over the course of summer.
In years such as 2008, initial sea
ice conditions at the end of spring may have more of an influence on a September arctic sea ice extent Outlook than a forecast of summer wind fields, which dominated the ice situation in 2007.
Not exact matches
My feelings on this go two ways: yes, I agree — dessert is not a necessity and we are
conditioned to want sweet
at certain times regardless of actual hunger but also, we chose to have a small amount of fruit and nut butter — a huge departure from
ice cream.
In order to make this frozen yoghurt you need an
ice cream maker, which can easily be purchased
at an appliance store or in good
condition off Ebay or Trade Me.
Travel with an NHL team and you hear grumblings about things as mundane as the soap in the visitors» dressing room, but the griping these days about the
condition of the chippy and rutty
ice at many arenas is genuine.
When weather
conditions allow (an average temperature of 20 degrees Fahrenheit or colder for 5 consecutive days, 5 - 6 inches of ground frost), park district staff will begin flooding the
ice rink
at Sunset Woods Park.
«Our research shows for the first time that classical systems such as artificial spin
ice can be designed to demonstrate topological ordered phases, which previously have been found only in quantum
conditions,» said Los Alamos National Laboratory physicist Cristiano Nisoli, leader of the theoretical group that collaborated with an experimental group
at the University of Illinois
at Urbana - Champaign, led by Peter Schiffer (now
at Yale University).
A vacuum chamber
at NASA's Ames Research Center exposes
ices found on meteors to space - like
conditions.
«These objects may hold
ice and preserve a record of
conditions at formation between the orbits of Mars and Jupiter,» he told New Scientist.
The case of this one polar bear and the failure of her offspring to survive in the new environmental
conditions of the Arctic doesn't bode well for the future of the species, especially as Arctic sea
ice continues to retreat
at a record pace.
Laboratory studies suggest that explosive development of
ice crystals can occur in these
conditions,
at temperatures between -4 and -8 degrees Celsius, and this «rime - splintering» mechanism is often invoked to explain past observations of the rapid development of large numbers of
ice crystals in cumuli.
AT A very reasonable price of # 2.50 for 750 grams, the
Ice Clear that Barry Cash spotted in his local Co-operative store looked just the thing to have ready in case of a return to wintry
conditions.
The team's next steps include looking more closely
at specific ocean swell events and sea
ice conditions during known
ice shelf collapses and large iceberg calving events.
Year - round
ice - free
conditions across the surface of the Arctic Ocean could explain why Earth was substantially warmer during the Pliocene Epoch than it is today, despite similar concentrations of carbon dioxide in the atmosphere, according to new research carried out
at the University of Colorado Boulder.
The scientists stressed the need for more study of the
conditions at the bottom of the
ice sheet because of a proposal published in the Bulletin of the Atomic Scientists in 1973 to use the
ice sheet as a dumping ground for radioactive waste.
«The
conditions on Ceres are right for accumulating deposits of water
ice,» said Norbert Schorghofer, a Dawn guest investigator
at the University of Hawaii
at Manoa.
«Modelers need an estimate of the heat flow, and they need to know something about the geological
conditions at the bottom of the
ice sheet in order to estimate drag.
After Levy and colleagues noted visible effects of ground
ice retreat in Garwood Valley, they began to monitor the valley, combining time - lapse photography and weather - station data
at 15 - minute intervals to create a detailed view of the
conditions under which the
ice, a relict from the last
ice age, is being lost.
If we compare the
ice thickness map of the previous winter with that of 2012, we can see that the current
ice conditions are similar to those of the spring of 2012 — in some places, the
ice is even thinner,» Dr Marcel Nicolaus, sea
ice physicist
at AWI, said today
at a press conference during the EGU General Assembly in Vienna.
«Populations in Europe appear to have contracted during
ice ages whereas African populations have expanded
at those times, suggesting that environmental
conditions there were more favourable,» says Matthew Webster.
It allows scientists to measure a variety of
ice behaviors
at conditions that are applicable to both terrestrial glaciers and icy moon surfaces.
NSIDC will issue a formal announcement
at the beginning of October with full analysis of the possible causes behind this year's
ice conditions, particularly interesting aspects of the melt season, the set up going into the winter growth season ahead, and graphics comparing this year to the long - term record.
Scientists
at the National Snow and
Ice Data Center (NSIDC), University College London, University of New Hampshire and University of Washington analyzed 300 summer Arctic sea ice forecasts from 2008 to 2013 and found that forecasts are quite accurate when sea ice conditions are close to the downward trend that has been observed in Arctic sea ice for the last 30 yea
Ice Data Center (NSIDC), University College London, University of New Hampshire and University of Washington analyzed 300 summer Arctic sea
ice forecasts from 2008 to 2013 and found that forecasts are quite accurate when sea ice conditions are close to the downward trend that has been observed in Arctic sea ice for the last 30 yea
ice forecasts from 2008 to 2013 and found that forecasts are quite accurate when sea
ice conditions are close to the downward trend that has been observed in Arctic sea ice for the last 30 yea
ice conditions are close to the downward trend that has been observed in Arctic sea
ice for the last 30 yea
ice for the last 30 years.
Europa has a global ocean locked away beneath a crust of
ice; deep below, the moon's internal heat might create hospitable
conditions, akin to hydrothermal vents
at the bottom of the mid-Atlantic ridge and East Pacific Rise on Earth.
The melting occurred
at just the
conditions that theoretical calculations predict such
ice would melt.
They're not the same
at the end of the game as they are
at the beginning, so the skip has to have a good understanding of how these
ice condition [s] change and what, you know, which path you would take to curl more
at the end of the game as opposed to beginning of the game and all sorts of things like that.
«This does not necessarily mean that a similar response would happen in the future with increasing CO2 levels, since the boundary
conditions are different from the
ice age,» added by Professor Gerrit Lohmann, leader of the Paleoclimate Dynamics group
at the Alfred Wegener Institute.
Freezing
conditions could become more likely: winter temperatures may even plummet to depths last seen
at the end of the 17th century, a time known as the Little
Ice Age.
«We have little data on the ocean and
ice shelf
conditions in this region,» says Fernando Paolo, a geophysicist
at NASA's Jet Propulsion Laboratory in Pasadena, Calif..
«Our work provides experimental evidence for superionic
ice and shows that these predictions were not due to artifacts in the simulations, but actually captured the extraordinary behavior of water
at those
conditions.
Among the many discoveries on matter
at high pressure that garnered him the Nobel Prize in 1946, scientist Percy Bridgman discovered five different crystalline forms of water
ice, ushering in more than 100 years of research into how
ice behaves under extreme
conditions.
In a paper published today in Nature Physics, a research team from Lawrence Livermore National Laboratory (LLNL), the University of California, Berkeley and the University of Rochester provides experimental evidence for superionic conduction in water
ice at planetary interior
conditions, verifying the 30 - year - old prediction.
Professor Poinar continues, «Mammoths were much better
at adapting to new habitats than we first thought — we suspect that subgroups of mammoths evolved to deal with local
conditions, but maintained genetic continuity by encountering and potentially interbreeding with each other where their two different habitats met, such as
at the edge of glaciers and
ice sheets.»
The
ice sheets themselves are the biggest challenge for climate modelling since we don't have direct evidence of the many of the key processes that occur
at the
ice sheet base (for obvious reasons), nor even of what the topography or
conditions are
at the base itself.
The researchers suggest that such
conditions would have made a difference of several degrees in summer temperatures
at the polesenough, they think, to have allowed the Antarctic
ice sheet to expand.
At its height between 1960 and 1980, Polyarka was staffed by more than fifty working scientists, engineers, and technicians focused on measurements of surface weather, snow depth, sea
ice, and
conditions in the upper atmosphere.
With the sun continuing to heat the ocean water
at the tropical latitudes regardless of
ice cap
conditions up north, it would seem that the presence of an
ice cap would result in a warmer ocean over the long term, with the converse also being true.
It is based on the misconception that the factor preferring isotopes is
at the «precipitation / freeze» end of the process when it is actually
at the evaporation end, i.e. not dependent on local
conditions on the
ice sheet.
But it wasn't until 1929 that William H. Barnes, working in Bragg the elder's lab
at London's Royal Institution, showed that
ice formed under natural
conditions had a structure with the oxygens arranged in a planar hexagon and the hydrogens located between the oxygens.
«Probability density function,» a statistical representation of the likelihood of something occurring
at any point in time, was used to examine cloud properties, including vertical motion, liquid and
ice water content, and the
conditions of cloud particle growth, including how
ice crystals grow
at the expense of liquid droplets.
«The big question is whether the
ice sheet will react to these changing ocean
conditions as rapidly as it did 14,000 years ago,» said lead author Dr Nick Golledge, a senior research fellow
at Victoria's Antarctic Research Centre.
At supersaturated atmospheric
conditions, bare and coated particles had a nearly equivalent predisposition for nucleating
ice.
At 3.42 million square kilometres, it may still sound large, but this small extent of Arctic sea
ice could have profound long - term consequences, and it follows a long trend of low sea
ice conditions.
For example, if we have a snapshot measurement of the
ice velocity, we can infer the value of our basal parameter, i.e. the parameter that represents
conditions at the base of the
ice.
However, the Antarctic
Ice Sheet is a complex system with interactions between the ice and climate, the ocean, and conditions at the base of the ice she
Ice Sheet is a complex system with interactions between the
ice and climate, the ocean, and conditions at the base of the ice she
ice and climate, the ocean, and
conditions at the base of the
ice she
ice sheet.
The holy grail of Europa exploration would be to penetrate the
ice sheet and actually get a look
at conditions inside that liquid reservoir.
Methane hydrates are formed by bonding with water to make an
ice - like substance in certain temperature / pressure
conditions that can be found
at shallow water depths in