air parcel


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air parcel

[′er ‚pär·səl]
(meteorology)
An imaginary body of air to which may be assigned any or all of the basic dynamic and thermodynamic properties of atmospheric air.
References in periodicals archive ?
Meanwhile, air parcel too has become the preferred conduit for synthetic opioids from China and other foreign sources.
CAPE essentially measures the potential energy a rising air parcel would gain while CIN is essentially the opposite, measuring the ambient air's tendency to resist rising (also called negative buoyancy).
When an air parcel rises, it cools, and the water it contains condenses and then rains out, causing storms.
As compared to the mid- and high latitudes, the mean age must be younger, the effect of eddy mixing will be smaller, and thus, the age spectrum will have a more compact shape for an air parcel inside the "tropical pipe" (Plumb 1996) of mean ascent as a result of the protection by the subtropical mixing barrier.
He said MET had been running analyses using the Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT), which is a computer model that is used to compute air parcel trajectories and dispersion or deposition of atmospheric pollutants.
Orographic lift is another factor that influences LES and can provide additional instability to an air parcel, affecting timing, and spatial distribution of precipitation [12].
His expertise in major air parcel hubs will be a major asset for 722 and our clients.
CAPE is computed as the amount of buoyant energy available to accelerate an air parcel vertically, with maximum vertical speed estimates in units of Joules per kilogram (J [kg.sup.-1]).
"Over the last few years, UPS has been increasing its domestic air parcel express at an accelerated rate, so as to decrease the difference between their base rates and those of FedEx," says Jerry Hempstead, president Hempstead Consulting.
Ahmed Abdullah bin Lahej, senior manager of Air Shipping Operations on Wednesday said the first seizure was extracted from a man's shirt and tie and a lady's handbag as part of an air parcel.
The cost for shipping: $120 for an air parcel not carried by a mule.