Sentences with phrase «air updrafts»

Additional measurements help estimate the effect of hot air updrafts.

Not exact matches

Fire whirls arise when superheated air above a wildfire drives strong updrafts and downdrafts that get sheared by the wind, causing them to twist into a vortex that funnels flames upward.

This is because terrestrial hurricanes form when an inflow of air along the ocean surface sops up moisture and rises in a halo of updrafts to create towering columns of rain clouds.

Similar but larger particles are known to play a role in feeding powerful, fast - moving updrafts of air from the land surface to the atmosphere, creating the clouds that play a central role in the formation of water droplets that fall as rain.

Unlike existing models, FV3 can also re-create vertical air currents that move between boxes, such as the updrafts that are a key element of hurricanes as well as tornadoes and thunderstorms.

An instrument - laden light aircraft penetrated the towering smoke plume of the fire, registering an 80 mile per hour updraft of hot, buoyant air, followed by a turbulent downdraft.

Creating a supercell takes moisture, updraft, spin, and then the trigger — a boundary between hot and cold air masses.

Clearly, these aren't the conditions to create thermal updrafts — rising pockets of hot air that hawks and vultures ride like elevators.

This mimics the updraft that pulls the air of a real thunderstorm upward.

In the simulation, this caused a plume of warm, moist air to rise from the lake at a top speed of 194 kilometres per hour, similar to the updraft speed in thunderstorms on Earth.

A low - altitude flow of warm, moist air from an ocean area combined with a flow of cold, dry polar air high up creates maximum instability, which means that parcels of air heated near the surface rise rapidly, creating powerful updrafts.

Supercell thunderstorms occur when the warm updraft punches through an overlying, stable layer and continues upward into a zone of cool, dry air.

The storms» violent updrafts sucked in air that shot up 40,000 - 50,000 feet or more into the atmosphere.

I believe what Jerry is refering to is the idea of using a column of spinning air to transfer the mechanical energy from CAPE (potential buoyant energy of hot and / or humid air near the surface) in an updraft to the surface.

What this argument fails to consider is that the greater SST also produces a more vigorous updraft, so that the rising moist air has less time in which the collision / coalescence process can work before the air reaches the upper cloud layers where spontaneous ice nucleation takes place (at somewhere around -40 C, reached near the top of the troposphere).

Some convective updrafts can be more than 100kts vertically — with liquid water carried up to the tropopause where the air temperature is minus 40 deg or colder — and the water as it freezes releases latent heat — that is not in accordance with Stefan Boltzmann.

She found high levels of DCM (PDF), especially over the Indian subcontinent and Southeast Asia, and particularly during the Asian monsoon season, when strong updrafts fast - track air from the ground to the stratosphere.

Eventually you get a thunder storm which, develops a strong updraft and pulls in warm moist air to feed the storm.

If the updraft of vapour laden air continues then the heavier drier air will be pushed aside to fall elsewhere.

Clouds are negative feedback driven nucleation points — when daytime clouds start to form the albedo causes further cooling beneath them and heat - engine thunderstorms form from the updrafts of warm wet air lofted up to the stratosphere to efficiently cool and spread, creating a local convective cell that pulls heat out of the ocean (or the moist land or air) and moves it to a cold reservoir.

Strong horizontal winds exist in the very driest of environments (consider the Antarctic interior) which seems to be a simple proof that thermal updrafts do indeed generate horizontal displacement in surrounding air masses.

Every now and then, however, the shear is low and a cluster of thunderstorms joins up and creates a persistent updraft as warm wet air is pulled into the low pressure underneath, is lifted up (cooling), and falls back as much cooler rain.

At the top of the column where the updraft can go no higher then all the remaining vapour condenses out and the air containing the remains of the cloud then spreads out horizontally before starting to fall back towards the surface.

On a carbon basis, enough air would pass through one 200 MW solar updraft tower to destroy about 0.4 million tons of CO2 - equivalent GHGs per year (at a 25 % net non-CO2 GHG - removal efficiency).

The data was only calculated for the updraft regions, which can include air that is non-buoyant.

When the gust front gets under the updraft, it pulls up on the rotating air associated with the gust front, stretching it out, and causing it to spin faster... Both the source of rotation of the mesocyclone and the tornado ultimately come from environmental vertical shear, but a tornado can actually sometimes spin in the opposite direction.

Cirrus clouds — high - altitude clouds of ice crystals — typically form as a byproduct of the life cycle of cumulus towers created by rising updrafts of heated, moist air.

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.

CH4 is equally light as a molecule, not normally concentrated enough to significantly lighten the air that contains it — but if anything makes for quick local releases, could these be concentrated enough to make their own brief updraft?

Dwellings use «updraft cooling instead of air conditioner.»

It's all a long way from the «chuck out your chintz» campaign, but here at Housetohome we're wondering if there might be some mileage in the Yeezy floating through the air with Kardashian - Wests falling through a bracing updraft.