Sentences with phrase «sunlight reaching the surface»

This worldwide volcanic dust veil acted as a solar radiation filter, reducing the amount of sunlight reaching the surface of the earth.

resulting more sunlight reaching surface.

In clear skies at noon with sun at zenith at Earth distance, you have 1000 watts, which is a reduction of 360 watts from TOA of 1360 watts per square meter, which less than 27 % reduction or more than 73 % of sunlight reaches the surface.

Mars undergoes temperature swings influenced by how much sunlight reaches the surface, which also affects its polar ice caps (another great influence on the atmosphere.)

CO2 has very little effect upon most of the energy of Sunlight reaching the surface.

gbaikie, when is cloudy, or plenty CO2 high up - > less sunlight reaches the surface; you are ignoring the» dimming effect» because it doesn't fit your extremism... naughty boy!

The net effect is a greater (reflecting) albedo, less sunlight reaching the surface, and therefore a negative feedback that reduces the original warming from increasing CO2.

It a decrease in cloud — more sunlight reaches the surface and warms the planet — to around 2000 followed by an abrupt increase and little change since.

Over the course of the twentieth century, Hansen and other climate scientists rierslot.net estimate aerosols may have offset global warming by as much as 50 percent by reducing the amount of sunlight reaching the surface.

Despite concerns over global warming, scientists have discovered something that may have actually limited the impact of greenhouse gases in the atmosphere in recent years by reducing the amount of sunlight reaching the surface of the Earth.

The only way CO2 could absorb any more IR than it is already absorbing is if 1) the surface started re-emitting more IR, which could only happen if more sunlight reached the surface, or 2) atmospheric water vapor levels dropped, freeing up more IR to be absorbed by CO2, in which case, warming would not occur, because that radiation was already being absorbed by the water vapor that disappeared.

The main concern and rightly so, is a decrease in global precipitation due to less evaporation due to less sunlight reaching the surface.

Not exact matches

Under such feeble sunlight its surface only reaches a high of -180 °C.

And despite the thickness of this alien atmosphere, Pierrehumbert and Gaidos calculate that enough sunlight would reach the planet's surface to foster photosynthesis.

The controversial approach, known as stratospheric aerosol injection, is designed to effectively cool the Earth's surface by reflecting some sunlight before it reaches the surface.

The seaweed grows on ropes tethered near the surface to ensure enough sunlight reaches the plants below.

For a start, the thick haze blocks most sunlight from reaching the surface.

We also use other filters to look at the sun to get direct readings of how much sunlight is reaching the surface.

Lichens, for example, are found within some Antarctic rocks, just beneath the surface where sunlight can still reach them.

Using this input, a sophisticated computer model developed at NASA's Goddard Space Flight Center, Greenbelt, Maryland, was used to determine which areas receive direct sunlight, how much solar radiation reaches the surface, and how the conditions change over the course of a year on Ceres.

For example, when the sun's energy reaches the top of the atmosphere, clouds can reflect incoming sunlight, cooling Earth's surface.

More than a mile beneath the ocean's surface there is no sunlight, but the darkness does not reign undisturbed: Anglerfish and other bioluminescent animals cast an ominous glow in the sea's deepest reaches.

If the heat is intense enough (center), it might melt the ice almost all the way to the surface; in that case, organic matter and sunlight from above could reach the ocean, creating promising conditions for biology.

At this distance, it takes sunlight reflected from the lunar surface approximately 1.3 seconds to reach Earth.

Climate engineering could involve techniques that reduce the amount of CO2 in the atmosphere or approaches that slow temperature rise by reducing the amount of sunlight reaching the Earth's surface.

So if there are fewer GCRs reaching Earth (because a strong solar magnetic field is deflecting them away), the hypothesis says there will be fewer clouds, more sunlight reaching the Earth's surface, and thus more global warming.

Aerosols tend to have a cooling effect by scattering sunlight and by encouraging clouds to form, preventing the sun's energy reaching Earth's surface.

One of the most feasible methods is reducing the amount of solar energy reaching the Earth's surface by distributing sunlight - reflecting particles high into the atmosphere.

Results: Over time scales spanning at least a decade, the amount of sunlight that reaches the Earth's surface has varied.

Geoengineering projects focus on two approaches: removing carbon dioxide from the atmosphere, or blocking some sunlight from reaching Earth's surface.

And in a final act of irony, with less sunlight reaching the Earth's surface, solar panels would produce less power.

Just as seeds need a period of gestation before they break through the soil and reach for the sunlight, we need time to cultivate our ideas and clear the way for our visions before they can surface into reality.

How these cyclical climate take place is still unknown, but they «are most likely caused by variations in the solar wind and associated magnetic fields that affect the flux of cosmic rays incident on cloudiness, and thereby control the amount of sunlight reaching the earth's surface and thus the climate.»

A 2007 NASA sponsored satellite - based study sheds light on the puzzling observations by other scientists that the amount of sunlight reaching Earth's surface had been steadily declining in recent decades, began to reverse around 1990.

Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).

Technologies that prevent sunlight from reaching Earth's surface could reduce average global temperatures within a few years, similar to the effects of large volcanic eruptions.

If you put more CO2, say, into the stratosphere then that doesn't change how much sunlight reaches the Earth's surface much and the surface warms up as much as before.

It is also because the ozone hole often extends beyond the Antarctic Circle, which together with its high altitude ensures sunlight reaches regions of depleted ozone long after the pole falls into shadow at the surface.

After a nuclear blast, however, loads of black smoke would settle into the upper atmosphere and absorb sunlight before it reaches our planet's surface.

Typically when sunlight travels through the atmosphere, some rays get absorbed by particles in the air, before reaching Earth's surface.

Clouds reflect sunlight, reducing the amount of energy reaching the surface.

Also during 1992 and 1993, ash and other particles from the volcano created a haze around the planet and slightly reduced the sunlight reaching Earth's surface and made the sun's radiation less direct and more diffuse.

Several papers (see our references) have shown that up to 50 % of the recent warming in Europe could be the result of brightening, i.e. more sunlight reaching the earth surface.

SRM describes an array of methods — all of which remain hypothetical — for artificially reducing how much sunlight reaches the Earth's surface in order to dampen global warming.

The ethical and political difficulties deepen when we get to the other kind of geoengineering scheme reviewed in the NRC report, «albedo modification» — formerly known as solar radiation management — schemes to reduce the amount of sunlight reaching the Earth's surface.

The sulfur dioxide prevented much sunlight from reaching the Earth's surface, lowering the overall temperature, and killing crops and many creatures as a result.

«Climatologists suggest that dust and other particles released into the atmosphere as a result of farming and fuel burning may be blocking more and more sunlight from reaching and heating the surface of the earth,» The Time lamented.

The explosive eruption of Mt. Pinatubo in 1991 injected enough sulfur - containing compounds into the stratosphere to substantially reduce the amount of sunlight reaching Earth's surface.

But even if 1000 W / m sunlight reached the Venus surface, it would not still warm the surface and * still * could not warm the atmosphere.

Whereas I would say that less than 1/2 of the visible and infrared light [250 to 2500] reaches the surface as direct sunlight.