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.
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