'Close Cell' Cloud Structure
I tell the day, to please him thou art bright,
And dost him grace when clouds do blot the heaven...
William Shakespeare, Sonnet XXVIII
|Home > Contents > 'Convective Cells' - 'Close Cell' Structure - Description|
Some of the CCS are polygonal, round or oval, the others are often stay
close to each other and form large fields up to more than a million square
kilometers in size. Occasionally single cells may be discovered. The larger
the cell is, the clearer its borders are (seen as thin lines). Through
these lines the sea surface can be watched.
The 'Close Cell' Cloud Structure may shape:
The 'Close Cell' Cloud Structures are usually found (depending on
the season) in the latitude of > 30° and <-20°.
The Closed cells consist of convective clouds and their circulation is vertical. These cells appear frequently in the atmospheric layer in rough hexagonal rows, and consist of Stratocumulus and Stratus clouds. The sides of the cloud tops are kept down by the inversion layer. Closed cells appear when the temperature difference between the sea surface and the troposphere is minor. They may shape when the inflow of cool air is weak. Besides, they can convert from Opened cells in the event that the flowing cool air subsides. In this case the future form of cells (opened or closed) depends on the intensity of the inflow of the cool air. However this process is very chaotic and it is very difficult to predict the result of convention. Sometimes the conditions of the atmosphere change, which gives rise to curious forms of clouds.
| Global occurrence
diagram of 'Close Cell' Structure|
MATE, MODULE 01--SURFACE WEATHER OBSERVATIONS
Integrated Publishing - Aerographer/Meteorology
Meteorological Agency 2002
Analysis and Use of Meteorological Satellite Images, Chapter 3, Cloud patterns
|Winter Meteorological Processes in the Atmosphere|