Sentences with phrase «high clouds reflect»

High clouds reflect light, cooling the earth, while lower clouds trap heat.

Not exact matches

At a high enough electron density, each cloud reflects high - frequency radio waves like a mirror.

During the dry season, with no fog layer to reflect sunlight, the smaller cloud cover allows plants to receive much higher radiation, increasing evaporation and photosynthesis rates, another process missed by the GCMs.

Indeed, conventional wisdom held that higher levels of aerosol pollution in the atmosphere should cool the earth's climate because aerosols can increase cloudiness; they not only reduce precipitation, which raises the water content in clouds, but they also increase the size of the individual water droplets, which in turn causes more warming sunlight to be reflected back into space.

And one other piece of bad news: Warming clouds tend to shift higher in the atmosphere, where they trap more heat while reflecting no more sun than they would have lower down.

This user - friendly activity has students do some informal free - writing in response to an educational film, then reflect on their writing usingword cloud» rpus christi, txcatholic online) in his poemthe virgin,» the poet william wordsworth praised the blessed virgin mary with the following words: cloud computing is an information technologyit) paradigm that enables ubiquitous access to shared pools of configurable system resources, higher - level dating word cloud stock illustration.

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.)

But a change of -1.7 % in (high level) clouds over 1 decade caused a change of 1.2 W / m2 in reflected SW and ~ 3 W / m2 more IR radiation to space over the 30N / S band.

Well, these days 107 W / m ^ 2 of solar forcing energy is reflected back into space by high clouds (77 W / m ^ 2) and the surface (30 W / m ^ 2).

And, as the satellite observations of Spencer and Braswell showed, as the planet warms over a period of several months, clouds act as a net negative feedback (the reflecting low - altitude clouds increase more than the absorbing high - altitude clouds with warming).

I know a cloud reflects high energy sunlight up, lessening the heat influx and reflects IR radiation from the surface and so increasing the IR influx.

The rising zones, meanwhile, soar high into the atmosphere, and contain clouds of ammonia ice crystals that reflect sunlight, and block the view of the darker layers below, just like clouds here on Earth.

I believe the IPCC claim that high cloud is a positive feed back (traps heat) and low cloud is a negative feed back (reflects sunlight) and following IPCC simple logic we find that AGW will cause less rain and more droughts sooooooooooooooooo if we have less rain we have less low clouds therefore we must have more high cloud.

The fact that the actual measured planetary warming is less than the lowest IPCC model prediction warming and is found only at high latitudes (which is not predicted by the IPCC models) logically supports the assertion that the planet's response to a change in forcing is to resist the change (negative feedback, planetary clouds in the tropics increase reflecting more sunlight in to space) rather than to amplify the change (positive feedback) due increased water vapour in the atmosphere.

As the planet warms, increasing levels of water vapour in the atmosphere caused by higher evaporation levels form more clouds and snow increasing the albedo of the planet, reflecting heat back into space more efficiently, thus working to regulate the temperature downward.

If it gets too hot, the oceans heat up, evaporation increases, high altitude clouds form, and they reflect back sunlight and shade the surface more, compensating and regulating temperatures so that life survives.

The IR peak in El Nino reflect the higher tropospheric temperature and relatively reduced cloud cover in the central Pacific.

Studying Chinese summer thunderclouds the researchers found that an increase in aerosols led to larger and more persistent convective cloud systems, with larger anvils at several kilometers of altitude that may reflect more sunlight, but trap even more heat — as their high - resolution model showed.

However, in the Southern Ocean around Antarctica, the high - altitude clouds usually clear out of the way to reveal lower altitude clouds below — which continue to reflect sunlight from their white tops, causing little effect on the solar radiation reaching the surface.

In general, high clouds cool the climate during the day, by reflecting the Sun's light, but warm it during the day and night by trapping heat lost from the Earth's surface — the net effect is one of warming.

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.

Like other high, thin clouds, contrails reflect sunlight back into space and cool the planet.

However, the ENSO total cloud cover correlations more accurately reflect its mid-level and high - level cloud cover patterns for land, with a correlation coefficient of 0.135.

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.

Clouds with low bases are most efficient in reducing the daytime maximum temperature and DTR mainly because they are very effective in reflecting the sunlight, while middle and high clouds have only moderate damping effects on DTR.

But, the amount of energy deposited is also low, as clouds have a high albedo, reflecting some fraction of the energy back to space and absorbing another fraction, which heats the air above the surface.

«These clouds account for the high reflectivity of Venus, but because they also reflect infrared back to the surface (unlike water clouds, which absorb and emit)»

(The graphic does not account for the portion of Sunlight that gets through the Atmosphere, and is then reflected back to Space by clouds and other high - albedo surfaces such as ice and white roofs.

(2) A portion of the Sunlight is reflected by clouds and other high - albedo surfaces and heads back through the Atmosphere towards Space.

When H2O concentration gets high enough, water condenses out, forming clouds, which block / reflect sunlight (this is NEGATIVE feedback) reducing the temperature of the earth.