Sentences with phrase «lower atmospheric layers»

The corona is heated to millions of degrees, yet the lower atmospheric layers like the photosphere — the visible surface of the Sun — are only heated to a few thousand degrees.

Albedo modification might also work by using aerosols to seed cloud formation in a lower atmospheric layer called the troposphere.

The lower atmospheric layer, in which people live and breathe, is the troposphere.

In an unexpected first, researchers have discovered ammonia in the troposphere, Earth's lowest atmospheric layer, a new study finds.

Not exact matches

This month, NASA aircraft will begin studying a natural atmospheric laboratory off the coast of Namibia, where a layer of smoke wafts over a low cloud deck.

That heated surface air then rose into the atmospheric boundary layer — the lowest level of the troposphere — doubling its height to more than 4 kilometers, and creating a thick blanket of heat.

Because the vast plateau at such altitudes absorbs a huge amount of solar radiation, the atmospheric layer above it in summer is much warmer than air at similar elevations over lower land or the oceans.

«Data collected by satellites and balloon - borne instruments since 1979 indicate little if any warming of the low - to mid - troposphere — the atmospheric layer extending up to about 5 miles from the Earth's surface.

«Data collected by satellites and balloon - borne instruments since 1979 indicate little if any warming of the low - to mid - troposphere — the atmospheric layer extending up to about 5 miles from the Earth's surface.

What is still contentious is what the result implies for the YD climate change and the megafaunal extinctions, incorporating the ideas of both the broad large scale cometary debris impact scenario at low grazing angles, and the direct asteroidal impact into water and ice covered surfaces, and all that implies with the ice sheet disruptions, megatsunamis and the ozone layer and atmospheric effects and disruption that are possible in these events.

(Note that radiative forcing is not necessarily proportional to reduction in atmospheric transparency, because relatively opaque layers in the lower warmer troposphere (water vapor, and for the fractional area they occupy, low level clouds) can reduce atmospheric transparency a lot on their own while only reducing the net upward LW flux above them by a small amount; colder, higher - level clouds will have a bigger effect on the net upward LW flux above them (per fraction of areal coverage), though they will have a smaller effect on the net upward LW flux below them.

Thus any process which tends to favor the growth of organisms made from silicate, such as diatoms, over organisms made from carbonate, such as the coccolithophorids, will tend to lower the atmospheric CO2 concentration — and vice versa — even if the total organic biomass formed in the surface layer and sinking from that layer remains constant.

If this heat were instantly trans - ferred to the lower 10 km of the global atmosphere it would result in a volume mean warming of this atmospheric layer by approximately 36 C (65 F).

Even as the stratosphere — the higher atmospheric layer — is cooling, the Earth's surface and lower atmosphere are warming.

A National Research Council panel was convened to examine observed trends of temperature near the surface and in the lower to midtroposphere (the atmospheric layer extending from the earth's surface up to about 8 km).

If this heat were instantly transferred to the lower 10 km of the global atmosphere it would result in a volume mean warming of this atmospheric layer by approximately 36 C (65 F).»

Water that travels past under - sea volcanism will dissolve sulphur ions which reduce its pH. This low pH water will reach the ocean surface centuries later and thus will reduce the pH of the surface layer with resulting increase to atmospheric CO2 concentration.

Even if this hypothesis was at first founded upon assumptions for the absorption of carbon dioxide which are not strictly correct, it is still an open question whether an examination of the «protecting» influence of the higher atmospheric layers upon lower ones may not show that a decrease of the carbon dioxide will have important consequences, owing to the resulting decrease in the radiation of the upper layers and the increased temperature gradient at the earth's surface.

Radiation does NOT keep heat statically in the lower levels where it builds up without this intervening pumping of air to the upper atmospheric layers.

However, while the horizontal resolution of 2.5 ° (T42) or better in the atmospheric component of many coupled models is probably adequate to resolve most important features, the typical vertical resolution of around 20 levels is probably too low, particularly in the atmospheric boundary layer and near the tropopause.