Sentences with phrase «rises by convection»

You appear to disregard the physical rate at which warm air rises by convection.

Energy is continually entering the atmosphere (probably more than 50 % at the surface) and then of course it takes a finite time for warm air to rise by convection, cooling as it does so.

Not exact matches

Heated by the hot core, the rock in the mantle rises and falls like water gently simmering in a pan, though this convection occurs much more slowly.

Their movement is caused as they are jostled from below by powerful convection currents rising and falling beneath the photosphere.

«The water could only have risen from below, driven upward by powerful convection originating deep in the atmosphere.

By contrast, in a convection zone the energy is transported by bulk movement of plasma, with hotter material rising and cooler material descendinBy contrast, in a convection zone the energy is transported by bulk movement of plasma, with hotter material rising and cooler material descendinby bulk movement of plasma, with hotter material rising and cooler material descending.

Through a process known as convection, cooler nitrogen ice located in the middle of the cells falls away, and is replaced by a rising globule of (relatively) warm material, which has been heated by Pluto's feeble interior heat source.

«When the rising cumulus columns meet the tropopause, or base of the stratosphere, at about 15,000 kilometers (50,000 feet), they reach a ceiling and can no longer rise buoyantly by convection.

The air with it's water vapour is quickly taken away by winds and convection and rises to higher levels in the atmosphere.

In brief, the temperature profile of the atmosphere is set by convection & latent - heat considerations (= > adiabatic lapse rate); based upon that temperature profile, the radiative transfer processes give rise to the radiative forcing which is the GHE.

The «unnatural» warming so far seen is however trended strongly to the alterations to the planetary surface by Humanity over the past 400 years and the rebalance towards greater kinetic induction (in its cumulative effect) is now producing observable alterations not only to the Land Surface median Temperature, but to the Ocean (vie conduction / convection) and a still unconfirmed claim of a small overall rise in Median Atmospheric Temperature, which if «true» would place the Planetary Biosphere on the «Human Population Plot» with regard to «warming».

As you rise, the atmosphere becomes less dense, convection less effective, until eventually heat transfer is dominated by radiative heat transfer.

At Tmax, for example, there has been a steady T rise as the sun moves higher in the sky, the rise helped by convection of air with hot packets in it surrounding the site, held back if frost has formed overnight, complicated if there is snow around and water phase change effects need consideration, hindered or lagged by the thermal inertia of the screen surrounding the thermometer as the screen heats up.

Reduce convection by erecting walls and to maintain constant convection + radiation, temperature has to rise.

Convection is gravitational: material rises because its density is lowered as it expands by being heated, and sinks because its density is increased by being cooled.

Since an inversion will usually control the upper level to which heat is carried by convection, only a shallow layer of air will be heated if the inversion is low and large, and the rise in temperature will be great.

Convection is characterized by a circulation pattern of rising and sinking air masses, and the atmospheric vertical volume transport takes place through cells of updraft and subsidence; however, these may not be coherent or stable in time and space.

For example, as one critic pointed out immediately, he only calculated how heat would be shuttled through the atmosphere by radiation, ignoring the crucial energy transport by convection as heated air rose from the surface (this deficiency would haunt greenhouse calculations through the next quarter - century).

Tropospheric amplification of surface temperature anomalies is due to the release of latent heat by moist, rising air in regions experiencing convection.»

The air nearest the surface is warmed soonest by conduction and that makes it rise in what's called thermal convection.

To produce, from incident Energy within Infrared (region) Radiation (IrR) such a rise in median temperature that could present a total rise allowing for this current ~ 0.7 degree C residual (after Conduction / Convection), with notice of the actual materials involved, would require more ENERGY to be presented within IrR than can be either observed, or survived by land surface life (over 90 % saline water) as it is seen bio-formed.

They can exchange this energy by convection as they rise or by radiating IR radiation.

Thus, during convection, gravity is slightly decreasing the energy of the atmosphere, by changing the radiation balance in favor of more heat loss from the descending air than rising air.