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In this phase, water vapor condenses on various nuclei present in the air, forming the cumulus cloud. This creates the characteristic flat-bottomed puffy shape associated with cumulus clouds. [4] [5] The height of the cloud (from its bottom to its top) depends on the temperature profile of the atmosphere and of the presence of any inversions. [6]
A typical cumulus cloud has a scale of less than 1 kilometre (0.62 mi), and would require a grid even finer than this to be represented physically by the equations of fluid motion. Therefore, the processes that such clouds represent are parameterized, by processes of various sophistication. In the earliest models, if a column of air in a model ...
If air near the surface becomes extremely warm and unstable, its upward motion can become quite explosive, resulting in towering cumulonimbiform clouds that can cause severe weather. As tiny water particles that make up the cloud group together to form droplets of rain, they are pulled down to earth by the force of gravity .
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A typical cumulus cloud has a scale of less than 1 kilometre (0.62 mi), and would require a grid even finer than this to be represented physically by the equations of fluid motion. Therefore, the processes that such clouds represent are parameterized , by processes of various sophistication.
Cumulus clouds significantly impact energy and water vapor transport and influence precipitation and climate. In large-scale models, cumulus clouds need to be parameterized. The entrainment rate is a key parameter in cumulus parameterization. Henry Stommel was the first to study the entrainment rate in cumulus clouds. [4]
Atmospheric thermodynamics is the study of heat-to-work transformations (and their reverse) that take place in the Earth's atmosphere and manifest as weather or climate. . Atmospheric thermodynamics use the laws of classical thermodynamics, to describe and explain such phenomena as the properties of moist air, the formation of clouds, atmospheric convection, boundary layer meteorology, and ...
The weather is very calm and is mainly determined by the air mass properties. In warm mass, especially in the winter and during summer nights, fog and stratus form. It is usually sunny during daytime in summer but cumulus clouds may persist in colder mass. [5] Cyclonic