Sentences with phrase «ice near the poles»

This occurs because as warming causes sea ice near the poles to melt, energy from the sun that would have been reflected away by the ice is instead absorbed by the ocean.
We have ice on top of mountains, glaciers and mainly, ice near the poles.
So the ice melted before the CO2 increased I picked this up surfing the internt: «Glaciation For a number of reasons, the volume of glacial ice near the poles waxes and wanes over time.

Not exact matches

Despite the worst ice conditions in years and a near catastrophic tent fire, we survived for 24 days on the ice and set the record for the first mother and son team to reach one of the Earth's poles by foot.
Images from the High Resolution Stereo Camera on Mars Express show raft - like ground structures — dubbed «plates» — that look similar to ice formations near Earth's poles, according to an international team of scientists.
Water ice and other deposits also have been identified in cold traps near the north pole on Mercury.
In these comparisons, the coldest areas near the south pole also were very bright, indicating the presence of ice or other highly reflective materials.
Equally enticing, some permanently shadowed craters near the lunar south pole seem to contain ice, which could provide water and air for the base.
For example, he pointed to sun - shy craters at the lunar poles, where near - constant darkness has trapped and preserved water ice ripe for conversion into oxygen, water and rocket propellant.
A new NASA ice - elevation monitoring satellite called ICESAT, scheduled for launch in 2001, will help scientists watch for climate - change trends near the poles over a longer time frame, he notes.
This 500 - kilometer - wide ice ball shoots out large geysers of ice crystals, which apparently originate from underground lakes near the satellite's south pole.
These popcorn - sized puffs of ice crystals have long been thought the source of the bromine oxide that triggers the deposition of the mercury from the atmosphere and the depletion of ozone near the poles.
The Phoenix Mars Lander, which touched down near the planet's north pole, was designed to look only for ice frozen into the Martian soil.
Multiple observations indicate that the flowing water responsible for shaping and moving the rounded pebbles encountered in the vicinity of the rover landing area has long since been lost to space, though some of it may still exist deep below the surface of the planet at equatorial locations (water ice is known to exist near the surface at the poles).
In 1994 he had helped set off the search for ice on the moon by running a jury - rigged radar experiment on the Clementine spacecraft that, by his interpretation published in Science, showed signs of ice buried near the moon's south pole.
The ice they carried would have vaporized from the impact, settling eventually in permanently shadowed craters near the north and south lunar poles, where the extreme cold (below — 400 degrees Fahrenheit, according to recent observations) would have preserved it almost indefinitely.
As MGS skimmed the planet from pole to pole, it tracked changes in carbon dioxide ice deposits near the south pole of Mars.
But in December 2012, when the ice moon was at its farthest point from the gas giant, they caught a pair of plumes bearing clear signs of oxygen and hydrogen — the components of water vapor — shooting from near the southern pole.
Water ice strongly reflects radar, and observations reveal that there are patches of very high radar reflection near the poles.
Mars Odyssey spotted vast tracts of water ice, and Mars Reconnaissance Orbiter saw «dry ice» snowflakes falling from clouds near the pole.
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.
The study, published in Geophysical Research Letters, adds three new members to the list of craters near Mercury's north pole that appear to harbor large surface ice deposits.
Using crampons, ice picks and snow poles, risking life and limb, they reached difficult ridges near the highest summit of the Sør Rondane Mountains and other challenging locations near the station in search of this cosmic dust.
Significantly, this water was found near Mars» north pole, but not in its polar icecaps, indicating that water extends farther than just those areas of trapped water ice, dust and carbon dioxide.
Using its three main science instruments, Odyssey has mapped the global distribution of many minerals and chemical elements across the Martian surface, found evidence of large amounts of buried water ice near the planet's poles and measured the radiation environment in low Mars orbit, which could help NASA plan out future manned missions to the Red Planet.
``... near the poles, Mars Odyssey [spacecraft] has shown, as much as 50 percent of the upper meter of soil may be [water] ice
However, layers of water ice, up to a few hundred meters thick, are permanently shielded from sunlight in craters (shown above in black) near Mercury's poles.10 How strange.
There's been open water at the pole before» During the summer of 2000 there was «a large body of ice - free water about 10 miles long and 3 miles wide near the pole» http://query.nytimes.com/gst/fullpage.html?res=9F00E3DD1E31F93AA1575BC0A9669C8B63
Although there is still some disagreement in the preliminary results (eg the description of polar ice caps), a lot of things appear to be quite robust as the climate models for instance indicate consistent patterns of surface warming and rainfall trends: the models tend to agree on a stronger warming in the Arctic and stronger precipitation changes in the Topics (see crude examples for the SRES A1b scenarios given in Figures 1 & 2; Note, the degrees of freedom varies with latitude, so that the uncertainty of these estimates are greater near the poles).
Colaprete et al in Nature 2005 (subscription required) showed, using the Mars GCM, that the south polar climate is unstable due to the peculiar topography near the pole, and the current configuration is on the instability border; we therefore expect to see rapid changes in ice cover as the regional climate transits between the unstable states.
Ice at the poles does not change the amount of radiation reflected out of Earth's system near as effectively as ice at low latitudIce at the poles does not change the amount of radiation reflected out of Earth's system near as effectively as ice at low latitudice at low latitudes.
Major ice ages came and went from natural causes, mainly variations in Earth's orbit and the incoming solar energy, especially nearer the poles.
Another important corollary of this is that the Arctic sea ice minimum and maximum are nearly irrelevant to climate, because they both occur near the equinox when no sunlight is reaching the pole.
Re: sea ice minimum and maximum are nearly irrelevant to climate, because they both occur near the equinox when no sunlight is reaching the pole.
130,000 years ago temperatures near the poles were higher than today, forests growing up to the Arctic Ocean, all permafrost melted, ice free North Pole at least in summer.
We are in Denver on a sunny, late September afternoon, but here at the National Ice Core Laboratory the main collections room is kept perpetually frigid, the better to store 14,500 precious cylindrical cores drilled from glaciers near the planet's poles.
The first half of 2017 has seen record low sea ice extents at both poles and near - record global average temperatures — despite the absence of a...
This snowpack accumulation near the poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater polar humidity, earlier seasonal, later seasonal and heavier snows are beginning to move water vapor from the oceans to the poles to re-build the polar ice caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).
This year, we attempted to account for a lower rate of first - year ice loss near the pole, but our outlook was still significantly lower than the actual minimum.
Ice cores can be made near the poles and at a few elevated low latitude locations as well.
Eventually, we will get to a state where there is enough heat absorbed during the summer, even at the shorter summer near the pole, to completely melt the sea ice.
During a glacial period (ice age) the oceans near both poles are much colder so the amount of heavy oxygen is very small.
An ice age might shorten it, with massive glaciers near the poles and lower oceans, causing the earth to spin faster.
Only Land near or on the poles is required because ice - sheets build up on Land and not on the Ocean.
Although the pole was obscured by clouds, the images show how fractured the ice was near the pole and the many large patches of open water over much of the area.
Dr. Serreze said an examination of satellite images from July 15 showed what looked like a large body of ice - free water about 10 miles long and 3 miles wide near the pole.
Arctic sea ice is very near the north pole in the Arctic Ocean.
Future investigations could focus on details of how ice sheets near the poles melted during historic periods of warming.
(This is a slight approximation: As noted above, there is a little bit of sea ice near the east coast of Greenland, and the actual center of the sea ice circle is slightly offset away from the pole.
Using a model that tracked a range of habitat conditions, including water temperature and depth from sea ice, to predict which habitats would be most impacted by climate change, William Cheung, the study's lead author, and his colleagues found that around 50 species of commercial fishes living near or at the poles will go extinct within the next 4 decades.
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