Ads 468x60px

ShareThis

Cooling Mechanisms

 
This is the basic part of meteorology.

Frontal Mechanisms


A weather and precipitation formations largely depands with either warm or cold fronts. This will explains based on frontal mechanisms in which the global scale circulation drivesa humid warm front above a cold air mass.

Orographic Uplifts



Orographic lifting occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air rises, it cools, often to the point where condensation takes place, which can raise the relative humidity to 100% and create clouds. As it descends down the other side of the mountain range, it heats up and absorbs much of the moisture on that side of the range and under the right conditions creating precipitation.

Thermal Convective Uplift



In thermal convective uplift the humid warm air is raised at higher heights by the presence of convective movements linked to temperature gradients and atmospheric instability. Atmospheric stability was defined as the resistance of the atmosphere to vertical motion.

Convergence Uplift

Convergent uplift occurs when air enters a center of low pressure. As air converges into the center of a cyclone it is forced to rise off the surface. As the air rises it expands, cools, and water vapor condenses. Convergent and convective uplift are the two most important uplift mechanisms for condensation in the tropics. Under the intense sun, surface heating causes the moist tropical air to rise. Convergence of the trade winds in the Intertropical convergence zone creates copious rainfall in the wet tropics as well.



No comments: