Sentences with phrase «water ice in the region»

Not exact matches

Many scientists think these permanently shadowed regions, such as the floors on impact craters in the Moon's polar regions, could hold large deposits or water ice.

The new study «demonstrates that climate change can remobilize POPs stored in water, snow, ice and presumably soils — and that this process is already occurring in the Arctic region,» he wrote in an essay accompanying the new study.

Forming in the system's colder outer regions, where volatile compounds such as water and carbon dioxide freeze out, makes it possible that the planets incorporated those ices and carried them along to a warmer place where they could melt, evaporate, and become oceans and atmospheres.

Completed in 1980 but operational before then, the VLA was behind the discoveries of water ice on Mercury; the complex region surrounding Sagittarius A *, the black hole at the core of the Milky Way galaxy; and it helped astronomers identify a distant galaxy already pumping out stars less than a billion years after the big bang.

Higher precipitation levels in the region and melting ice would decouple the surface from the deeper water layers.

The fall of the temperature of the sea water is sometimes a sign of the proximity of ice, although in regions where there is an intermixture of cold and warm currents going on, as at the junction of the Labrador Current and the Gulf Stream, the temperature of the sea has been known to rise as the ice is approached.

Water vapor and clouds may play a role The Arctic's summer ice cover hit a record low in 2007, when it dipped about 40 percent below the average ice cover recorded since 1979, when scientists began monitoring the region with satellites.

These particles can build up electric charges faster than the soil can dissipate them and may cause sparking, particularly in the polar cold of permanently shadowed regions — unique lunar sites as cold as minus 240 degrees Celsius and known to contain water ice.

Next summer is expected to be the third in a row with completely ice - free waters above the Arctic Circle, and tourism in the once - remote region is thriving.

While that water could initially come from Earth, it could later come from water ice frozen on asteroids, in shadowed regions of the moon's surface, from possible sources on Mars» two moons, or from Mars itself.

The scientists were able to use a test scenario in the Greenland Sea to demonstrate that ALES + returns water levels for ice - covered and open ocean regions which are significantly more precise than the results of previous evaluation methods.

A cloud front can be seen in the lower left, and dark areas indicate regions of open water between sea ice formations.

A possible cause for the accelerated Arctic warming is the melting of the region's sea ice, which reduces the icy, bright area that can reflect sunlight back out into space, resulting in more solar radiation being absorbed by the dark Arctic waters.

This line marks a deep ocean channel that remained water - filled even during past ice ages, when sea levels saw channels between other islands in the region dry out.

«A lot of what we are seeing right now in the coastal regions is that warming ocean waters are melting Antarctica's glaciers and ice shelves, but this process may just be the beginning,» Shevenell said.

Invasive species are entering the region with or without shipping, says Ted Scambos of the National Snow and Ice Data Center in Colorado; warming of the Arctic Ocean's surface temperatures has already increased mixing with foreign waters and all the microbes they contain.

«This is the first - ever such survey in the Northwest Passage, and we were surprised to find this much thick ice in the region in late winter, despite the fact that there is more and more open water in recent years during late summer,» says Haas.

«Unique diamond impurities indicate water deep in Earth's mantle: Scientific analysis of diamond impurities — known as inclusions — reveal naturally forming ice crystals and point to water - rich regions deep below the Earth's crust.»

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.

The craft is designed to dig into the cementlike layer of ice that researchers believe lies buried a few inches below the surface in the planet's polar regions, scanning for signs of past liquid water and organic compounds, the carbon - rich molecules that make life on Earth possible.

To assess whether liquid water flowed over the region during the heat spells Mars experiences every 50,000 years, an onboard microscope will examine cracks in the subsurface ice that should form during cold times.

According to the geochemist, comets originate in the cool outer regions of the solar system where volatile water and carbon compounds condensed into ice.

That includes mixedphase clouds, which occur in polar regions and combine supercooled water with ice.

As the paper suggests, one could be the evaporation of surface waters that have become exposed because of sea ice loss in the region, he added.

«The upper haze is so optically pretty thick that it is only in the stormy regions where the haze is penetrated by powerful updrafts that you can see evidence for the ammonia ice and the water ice.

The data from Keck Observatory shows that peroxide is widespread across much of the surface of Europa, and the highest concentrations are reached in regions where Europa's ice is nearly pure water with very little sulfur contamination.

Scientists think that in the «heart» region of Pluto (otherwise known as Sputnik Planum), water ice bedrock might be hidden underneath a thick blanket of other ices made of methane, nitrogen and carbon monoxide.

The new results show that atmospheric water in the near - polar region was enriched by a factor of seven relative to Earth's ocean water, implying that water in Mars» permanent ice caps is enriched by 8-fold.

The team was especially interested in regions near the north and south poles, because the polar ice caps are the planet's largest known reservoir of water.

Reference: «New Evidence for Surface Water Ice in Small - Scale Cold Traps and in Three Large Craters at the North Polar Region of Mercury from the Mercury Laser Altimeter,» Ariel N. Deutsch, Gregory A. Neumann & James W. Head, 2017 Sept. 14, Geophysical Research Letters [http://onlinelibrary.wiley.com/doi/10.1002/2017GL074723/full].

«Soil thickness, ice presence and depth, atmospheric circulation, and sunshine can explain the current difference in the amount of water in the soil of different regions,» as IFL Science reports.

Collapsing ice shelves and melting sea ice leaves more open water in the Earth's polar regions (photo a in earlier figure).

Are you saying that ocean circulation patterns in the Northern Hemisphere do not reach Antarctic regions where ice is more in the water?

While it is often occurring in remote regions, ongoing change with the cryosphere has impacts on people all around the world: sea level rise affects coastlines globally, billions of people rely on water from snowpack, and the diminishing sea ice that covers the Arctic Ocean plays a significant role in Earth's climate and weather patterns.

The surface is composed of three major types of terrain: bright, rough regions that are similar to Xanadu Regio, dark regions that are rich in water ice, and dark regions that are covered by fields of dunes.

But they do at least have certain basic physical principles in their cloud representations — clouds over ice have less albedo effect than clouds over water, you don't get high clouds in regions of subsidence, stable boundary layers lead to marine stratus, etc..

On March 21, 2012, the MESSENGER team also revealed new supporting evidence that many permanently shadowed craters in Mercury's polar regions may harbor water ice insulated with a thin layer of soil or dust, or some other radar - reflecting volatile substance such as sulfur.

Warm waters have been eating away at ice from below in this region, and once grounding lines retreat far enough inland, entire glaciers can become unstable and collapse.

This is the external or internal use of water in any form (i.e., ice, steam, or water) with various temperatures, pressures, and durations to treat multiple regions of the body.

When the Arctic sea ice goes the increase in water vapour in the Arctic region will accelerate the Greenland melt.

If the NAO were driving an ocean current that contains higher SST's and more saline surface water into the Arctic region, I suspect it would be a possible correlation that salinity may be playing a part in the Arctic ice loss.

It is possible the Arctic ice melt could also be related to ocean currents carrying highly saline water caused by the recent increased SSTs in the temperate oceans between 1985 and 2005 to the region.

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.

I've been to the Arctic three times for the newspaper since 2003 — visiting the North Slope, North Pole, and Greenland to examine what mix of human and natural forces is driving the warming and ice retreats and the implications of having increasing amounts of open water in summers in a region increasingly seen as a resource trove and shortcut for shipping.

This would seem to suggest that if the volume of ice melt is as great as suspected, that there had to be a greater salinity in the region that was mixing with the melt water to reduce the expanse and depth of the brackish region.

In many regions, changing precipitation or melting snow and ice are altering hydrological systems, affecting water resources in terms of quantity and quality (medium confidenceIn many regions, changing precipitation or melting snow and ice are altering hydrological systems, affecting water resources in terms of quantity and quality (medium confidencein terms of quantity and quality (medium confidence).

Added to this the seas in these regions recede as the gravitational pull of the ice is no longer present, leading to the redistribution of this water to the equator.

Last summer's record loss of ice was due to a combination of natural cycle and global warming factors: «more greenhouse gases, an unusual wind pattern, and warming of the ocean water in regions with reduced sea ice.»

In the region above the temperature maximum, Atlantic Water heat can go upward and affect the sea ice.

Historically, there had not been enough open water for polar bears in this region to swim the long distances we observed in these recent summers of extreme sea ice retreat.»