Sentences with phrase «reflected by the ice»

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

Not exact matches

This year, Summit's list of long - term visitors includes Brandon Strellis, an environmental engineering graduate student from the Georgia Institute of Technology studying how aerosols influence how much energy is reflected and absorbed by Greenland's ice — and where those particles are coming from.

MESSENGER's maps of polar craters match up nicely with earlier imagery of the poles, taken by Earth - based radars, which showed anomalously bright features — patches that reflected radio waves much better than the surrounding terrain, just as ice does.

Ice - penetrating radar works by sending radar signals into the ice and recording the strength and return time of reflected signaIce - penetrating radar works by sending radar signals into the ice and recording the strength and return time of reflected signaice and recording the strength and return time of reflected signals.

At altitudes of more than 3 kilometres above the planet's plains, Venusian mountains reflected Magellan's radar signals much more strongly than ordinary rocks, just as if they were covered by ice.

One thing is certain: global warming is reduced by snow and sea ice reflecting solar energy back into space.

Radar works by sending out radio waves that reflect off particles in the atmosphere, such as raindrops or ice or even insects and dust.

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.

Arctic sea ice cover, made of frozen seawater that floats on top of the ocean, helps regulate the planet's temperature by reflecting solar energy back to space.

The brightness of the disc, which is due to the starlight reflected by it, is also consistent with a wide range of dust compositions including the silicates and ice present in the Kuiper Belt.

Left unchecked, the haze could absorb solar radiation, warming the Arctic and in turn aggravating global warming by melting the ice and snow that reflect some of the Sun's rays back into space.

We determine that this difference is driven by the growth and retreat of large continental ice sheets that are present in the cold ice - age climates; these ice sheets reflect a lot of sunlight and their growth consequently amplifies the impact of CO2 changes.»

Shennan tested whether changes in climate hit the farmers hard by comparing the patterns of population growth and decline with regional fluctuations in climate, as reflected in Greenland ice core samples.

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?

If an ice sheet were ablated down to bare ground, less light from the sun would be reflected back into space and more would be absorbed by the land.

The Arctic is warming more than twice as fast as the rest of the planet, because as ice melts at the top of the world, there is less of it to reflect sunlight back into space, so more of it is absorbed by ocean waters; more absorbed sunlight means even warmer temperatures, which means more ice melt a circular process known as Arctic amplification.

As the extent of the sea ice declines, energy from the sun that would have been reflected away is instead absorbed by the ocean.

As Arctic sea - ice shrinks, energy from the sun that would have been reflected away by sea - ice is instead absorbed by the ocean.

Navient d efende d its pract ices, saying the allegations by the CFPB are «unfounded» and that the timing of the lawsuit, given the transfer to a new government, «reflects their political motivations.»

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.

After reflecting upon many images of ice, rock, snow and sea, the gallery's sound installation by Jacob Kirkegaard, is a curious oasis for reflection and rejuvenation.

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.)

This loss is exacerbated by the intensifying Climate Destabilization (reportedly reflecting the start of the «Albedo Loss» feedback due to the decline of Arctic sea - ice and ice caps) which is suppressing subsistence farm yields and some commercial farm yields on a random basis by the impacts of extreme droughts, storms, floods, and heat and cold waves.

When the Zipcar member gets a yearning for ice cream, they reflect «ice cream now by car for a $ 9 travel cost or something else?»

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).

The change in Earth's moment of inertia, a quantity called J2 - dot, due to the ongoing isostatic rebound in Canada after the last ice age, has been well observed by satellite orbit monitoring, e.g., of the Lageos laser reflecting satellites.

This suggested that an ice age could be initiated within a few years by eg a volcanic eruption causing cooling that caused widespread snow cover, causing further cooling by reflecting sunlight etc..

Since it reflects the capacity of the climate system to absorb heat, it may be influenced by the planetary albedo (sea - ice and snow) and ice - caps, which respond to temperature changes.

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?

None of the sea - ice specialists I've interviewed since 2000 on Arctic trends ever predicted a straight - line path to an open - water Arctic, but quite a few have stressed the longstanding idea that as white ice retreats, solar energy that would have been reflected back into space is absorbed by the dark sea, with that heat then melting existing ice and shortening the winter frozen season.

As Arctic sea - ice shrinks, energy from the sun that would have been reflected away by sea - ice is instead absorbed by the ocean.

The end of the first half of the Holocene — between about 5 and 4 ka — was punctuated by rapid events at various latitudes, such as an abrupt increase in NH sea ice cover (Jennings et al., 2001); a decrease in Greenland deuterium excess, reflecting a change in the hydrological cycle (Masson - Delmotte et al., 2005b); abrupt cooling events in European climate (Seppa and Birks, 2001; Lauritzen, 2003); widespread North American drought for centuries (Booth et al., 2005); and changes in South American climate (Marchant and Hooghiemstra, 2004).

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.

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.

Scientists can tell from basic astronomical theory how Milankovich cycles have evolved over the past hundreds of thousands of years.The ice - sheets affect the climate by reflecting sunlight.

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.

Sea level rises reflect melting of the Greenland ice sheet, where melting since measurements began in 1979 increased by 30 percent (S. Konrad, University of Colorado, AGU, 2008), and of the west Antarctica ice sheet which is losing ice at rates 60 percent faster than 10 years ago (British Antarctic Survey, Nature Geoscience, 2008).

Increasing amounts of sea ice and clouds could reflect more sunlight back into space, but Wally Broecker suggests that a major greenhouse gas is disturbed by the far - north failure of the salt conveyor, and that this affects the amount of heat retained.

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.

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.

The disappearance of sea ice could also contribute to global warming by causing more heat to be absorbed by the ocean rather than reflected back into space by ice, he says:

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.

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..

The rest is reflected away by bright white clouds or ice or gets absorbed by the atmosphere.

This is because solar radiation which would have been reflected by a sheet of ice is being absorbed by blue water, which speeds up the warming further.

But much stronger albedo effects (a measure of how much sunlight is simply reflected back out into space) might be generated by the high winds of the glacial era, giving 10 °C temperature changes rather than the 1 °C excursion of the Little Ice Age.

The problem with your analysis is that the ice cores already reflect the ocean temperature by measuring the ratio of Deuterium to Hydrogen based on the difference in the relative evaporation of each, vs. temperature.

The effects of declining sea ice on marine mammals are likely to be reflected in the shifting of marine mammal populations (or smaller units) to higher latitudes by either direct movement and / or indirect shifts associated with increased mortality and decreased reproduction at lower latitudes, coincident with decreased mortality and increased reproduction at higher latitudes (Tynan and DeMaster 1997).

Major ice sheets didn't develop until about 70,000 years ago, perhaps helped along by a major volcanic eruption in Indonesia that reflected a great deal of sunlight back out into space.

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?