Atmospheric Stability
air is stable if it is at the same density as surrounding air, so it will not tend to rise or fall but will tend to remain in place ...
Atmospheric stability Property of ambient air that either enhances (unstable) or suppresses (stable) vertical motion of air parcels; ...
Atmospheric Stability- An indication of how easily a parcel of air is lifted. If the air is very stable it is difficult to make the parcel rise. If the air is very unstable the parcel may rise on its own once started.
Used in calculations of atmospheric stability. SIGMET information Meteorological information issued by a watch office concerning the occurrence or forecast of weather phenomena which may affect the safety of aircraft operations.
The Severe Weather Threat (SWEAT) Index uses atmospheric stability, wind shear, and wind speeds aloft (taken from radiosonde reports).
The change is in the direction of increased atmospheric stability from regions below to regions above the tropopause. Its height varies from 15 to 20 km (9 to 12 miles) in the Tropics to about 10 km (6 miles) in polar regions.
A measure of the moisture deficit and atmospheric stability used in the prediction of the spread of wildfires. The Haines Index is based on the 850-700 hPa lapse rate and the 850 hPa dew point depression.
The wind profile of the atmospheric boundary layer (surface to around 2000 meters) is generally logarithmic in nature and is best approximated using the log wind profile equation that accounts for surface roughness and atmospheric stability.
The standard deviation of wind direction. Provides an indication of the variability of the wind direction. Used in calculations of atmospheric stability.
Snow Depth ...
typically is used to plot atmospheric soundings, and to estimate potential changes in temperature, moisture, etc. if air were displaced vertically from a given level. A thermodynamic chart thus is a useful tool in diagnosing atmospheric stability.
The regions above the troposphere have increased atmospheric stability than those below. The tropopause marks the vertical limit of most clouds and storms.
 See also: Stability, Surface, Air, Atmosphere, Water
  
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