Sentences with phrase «parcel of air»

Thanks, but I wasn't asking why a moist parcel of air would rise if it was surrounded by dry air.

I was asking why a moist parcel of air would be surrounded by dry air.

: With no convection whatsoever, the change in temperature with a doubling of CO2 would be different than if parcels of air are allowed to rise, thus allowing the various forms of lapse rates to take effect.

Parcels of air move around the low pressure system.

Mean Parcel LCL The Lifting Condensation Level is the pressure level at which a lifted parcel of air reaches saturation when lifted dry adiabatically.

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.

The important point to note is that adiabatic descent involves a falling parcel of air contracting and heating despite there being no heat drawn by it from the surroundings.

Such changes in PE relative to KE result in density differences which cause different parcels of air to change their weights and rise or fall at different rates.

We are talking about a buoyant gas dragging parcels of air around, now, instead of (what I understood) your original thought was the gases separating themselves by unmixing.

12) The answer is that due to any such imbalance the normal equilibrium distribution of Kinetic Energy (KE) and Potential Energy (PE) is upset and parcels of air start to move around differently relative to each other due to the changes in their respective KE and PE contents.

CO2 molecules do not rise singly on their own because they conduct some of their extra energy to surrounding non GHGs and the whole parcel of air rises higher with kinetic energy being converted to potential energy to a greater extent than for a radiatively inert atmosphere.

Convection takes parcels of air upwards — and if this was the only process then the relative humidity (above the boundary layer) would be at 100 %.

As a moist parcel of air ascends it cools as it expands and does work against the rest of the atmosphere.

Relative humidity is the fraction of water vapour in a small parcel of air relative to the total amount of water vapour the air could contain at the given temperature and pressure.