Convective condensation level
Encyclopedia
The convective condensation level (CCL) represents the height where an air parcel
becomes saturated when lifted adiabatically to achieve buoyant ascent. It marks where cloud base
begins when air is heated from below to the convective temperature
, without mechanical lift. Can be roughly approximated by taking the spread between the surface temperature and dewpoint and dividing by 4.4 (centrigade), then multiplying the result by 1000.
Air parcel
In fluid dynamics, within the framework of continuum mechanics, a fluid parcel is a very small amount of fluid, identifiable throughout its dynamic history while moving with the fluid flow. As it moves, the mass of a fluid parcel remains constant, while—in a compressible flow—its volume may...
becomes saturated when lifted adiabatically to achieve buoyant ascent. It marks where cloud base
Cloud base
This article refers to meteorology. For the airborne base of the TV series Captain Scarlet and the Mysterons, see Cloudbase.The cloud base is the lowest altitude of the visible portion of the cloud...
begins when air is heated from below to the convective temperature
Convective temperature
The convective temperature is the approximate temperature that air near the surface must reach for cloud formation without mechanical lift. In such case, cloud base begins at the convective condensation level , whilst with mechanical lifting, condensation begins at the lifted condensation level...
, without mechanical lift. Can be roughly approximated by taking the spread between the surface temperature and dewpoint and dividing by 4.4 (centrigade), then multiplying the result by 1000.
External links
- SKEW-T: A LOOK AT CCL
- Convective condensation level (CCL) (Glossary of Meteorology)