Sentences with phrase «ice surface reflecting»

Not exact matches

The ice sheet reflects energy into space, and as that bright reflective surface is lost, more heat is trapped in the ocean.

For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surface melting to accelerate.

Data suggest that although the ice - rich rings have only 15 % of Chariklo's surface area, they reflect almost three times as much light on an area - to - area comparison.

The instrument sends down radar waves, which reflect off of the ice surface, layers inside the ice sheet and bedrock back to the instrument, giving researchers a three - dimensional view.

Adapted to cold, dark and nutrient - poor environments, below ice and snow, the charr's activity rhythms reflect the above - surface daily photoperiod.

And then, if the ocean surface water was «diluted» with isotopic light melt water, would this not be reflected with a similar drop in the Greenland ice cores, just by a changing isotope signature of the source, instead of a temperature drop?

Sea ice, with its bright white surface, reflects solar energy back into the atmosphere, helping to cool surface temperatures.

According to scientists, the dark skin is due to the higher level of ultraviolet rays that such people get, which is reflected from the ice and snow surface during the summer season, and the vitamin D that they obtain from eating fish and seal.

The new graphics system provided by the brand new Gepard3 Engine allowed developer Stormregion to create a large variety of different surfaces such as, for example, reflecting puddles which disappear over time, vehicles which become wet with rain or glistening sheets of ice.

The higher - frequency «solar photons», if reflected by something on the surface (be it an ice - sheet, a body of water, or someone's windshield) will happily change course and zip right out of the atmosphere again, completely unaffected by GHGs (though not by cloud, of course.)

Geoengineering proposals fall into at least three broad categories: 1) managing atmospheric greenhouse gases (e.g., ocean fertilization and atmospheric carbon capture and sequestration), 2) cooling the Earth by reflecting sunlight (e.g., putting reflective particles into the atmosphere, putting mirrors in space to reflect the sun's energy, increasing surface reflectivity and altering the amount or characteristics of clouds), and 3) moderating specific impacts of global warming (e.g., efforts to limit sea level rise by increasing land storage of water, protecting ice sheets or artificially enhancing mountain glaciers).

For example, if ice extent increases, the increase in reflective surface will mean that more sunlight is reflected back into space without ever having its energy absorbed into the Earth system.

And then, if the ocean surface water was «diluted» with isotopic light melt water, would this not be reflected with a similar drop in the Greenland ice cores, just by a changing isotope signature of the source, instead of a temperature drop?

Snow and sea - ice reflect the sun's energy very effectively so, as they melt, more energy is absorbed at the earth's surface.

Ocean and land surfaces warm at different rates, and land covered by vegetation absorbs and reflects solar energy differently than do deserts or ice - caps.

Sea ice can reflect solar energy to reduce surface warming or insulate water against heat loss.

He fails to recognize that the incremental power reflected away from clouds is greater than the surface power trapped by them, or at least this is the case when the temperature is greater than 0C and the ground is snow / ice free.

The loss of large areas of ice on the surface could accelerate global warming because less of the sun's energy would be reflected away from Earth to begin with (refer back to our discussion of the greenhouse effect).

Five to six times as much incoming solar radiation is reflected back to space from clouds as from the Earth's surface (of which only a fraction is from snow or ice).

The simplistic argument being that less solar energy will be reflected by water compared to an ice or snow surface leading to further warming and thus ever more melting.

Nonetheless, the findings demonstrate that satellite - based measurements of Arctic sea surface salinity are reasonably accurate and successfully reflect changes due to river runoff, melting sea ice and glaciers, and ocean circulation.

You can only compare how much sunlight is reflected from each surface at the edge of each ice pack, and how much sunlight is absorbed from each square meter.

ABSORBED ENERGY The solar radiation that passes through Earth's atmosphere is either reflected off snow, ice, or other surfaces or is absorbed by the Earth's surface.

Surely the surface layer of water transmits at least as much insolation as ice reflects.

AGW climate scientists seem to ignore that while the earth's surface may be warming, our atmosphere above 10,000 ft. above MSL is a refrigerator that can take water vapor scavenged from the vast oceans on earth (which are also a formidable heat sink), lift it to cold zones in the atmosphere by convective physical processes, chill it (removing vast amounts of heat from the atmosphere) or freeze it, (removing even more vast amounts of heat from the atmosphere) drop it on land and oceans as rain, sleet or snow, moisturizing and cooling the soil, cooling the oceans and building polar ice caps and even more importantly, increasing the albedo of the earth, with a critical negative feedback determining how much of the sun's energy is reflected back into space, changing the moment of inertia of the earth by removing water mass from equatorial latitudes and transporting this water vapor mass to the poles, reducing the earth's spin axis moment of inertia and speeding up its spin rate, etc..

(NASA says the surface reflects 6 % but that's with water, snow and ice.)

Bright white ice reflects sunlight from the Earth's surface.

In the Arctic, one familiar feedback effect is sea ice albedo, which measures how well the Earth's surface reflects sunlight.

They also warn that feedback patterns are starting to emerge in the shape of the ice albedo effect: ice reflects heat away from the surface, so as it decreases in extent so warming quickens.

The unusually high sea ice surface temperatures reflect a shift in ocean circulation, enhancing the import of warm, Atlantic - derived waters into the Arctic Ocean.

We can sum up the shortwave into three mechanisms of reflecting, or limiting the surface absorption of solar radiation, namely the land surface (including snow / ice), clouds, and the clear - sky atmosphere.

They analyzed the relationship between the growth of the algae and the amount of light being reflected by the ice sheet surface.

As 100hPa temperature falls it promotes ice cloud formation reflecting solar radiation and cooling the surface Remember that drop in Ap index in 2005, as pointed out by Anthony?

The statement of P&B is somewhat odd as the high - latitude marine areas are almost continuously covered by low clouds; and for the cloudless case the Fresnel formulas show that the light from a Sun low over the horizon is reflected almost as much by water than by the irregular surface of the ice pack.

About 30 percent of the radiation striking Earth's atmosphere is immediately reflected back out to space by clouds, ice, snow, sand and other reflective surfaces, according to NASA.

Pokrovsky finds that the surface wind patterns have not changed much from previous months and that this is reflected in the position of the ice edge, pushing ice north of the median ice edge.

Ice reflects more solar radiation than other surfaces

The rapid changes underway in the Arctic are partly caused by the disappearance of sea ice, which causes more light and heat to be absorbed at the ocean's surface during sunny months instead of being reflected into space.

With ice cover shrinking in the Arctic during the summer months, less sunlight is reflected off the icy surface, which means the ocean absorbs the sunlight instead.

An increase of solar radiation will lead to a rising temperature, to an extent depending on the amount of ice on the surface; an ice cover will reflect much of the extra radiation away, causing less heating, until eventually the heating is sufficient to melt the ice.

In the real - world, up to a third of it is reflected back to Space from light - colored surfaces (albedo) such as snow, ice, clouds, and the white roof of Energy Secretary Chu's home: ^).

The more ice there is at the poles, the more of the Earth's surface is white, reflecting more of the sun's light and heat and lowering temperatures further.

Sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space.

Black carbon warms the earth by directly absorbing reflected solar radiation and also by darkening the surface of snow and ice when it is deposited there (and enhances melting).

In the Arctic atmosphere, black carbon absorbs heat from the sun and reflected heat from the snow and ice doubling the warming impact when it settles on the snow and ice surfaces.

Bright surfaces such as ice and snow have a high albedo, as they reflect much of the solar radiation they receive.

Quite off the mark, surface temperatures are mostly average because there is still some ice reflecting sunlight, but sunlight is very intense due to low cloud extent and high sun elevations, and does not show immediately above the ice, but further up.

With a step change in temperature at the surface of the ice sheet, and assuming a constant thickness of 2 km, the time required for the mid-point of the ice sheet to reflect only 50 % absorption of the energy reflecting the temperature increase is... 159.5 years.

So, because ponded ice reflects less of the solar radiation, there is more heat available to melt the surface of the ice,» said Daniel Feltham, a researcher at the Center for Polar Observation and Modeling at the University College London, and co-author of the study, in an email.

Snow and ice reflect more sunlight than bare ground, meaning less solar radiation is absorbed by the surface.