What do you mean by convergence and divergence?

What do you mean by convergence and divergence?

Divergence generally means two things are moving apart while convergence implies that two forces are moving together. In the world of economics, finance, and trading, divergence and convergence are terms used to describe the directional relationship of two trends, prices, or indicators.

What does upper-level convergence cause?

While air swirls inward and converges into the center of surface low pressure, an “upper-level disturbance” causes divergence aloft that allows air columns to shed weight. The end result is rising air, and usually clouds and precipitation associated with a low.

What is convergence in atmosphere?

A convergence zone in meteorology is a region in the atmosphere where two prevailing flows meet and interact, usually resulting in distinctive weather conditions. This causes a mass accumulation that eventually leads to a vertical movement and to the formation of clouds and precipitation.

Where does upper-level convergence occur?

The strongest convergence aloft occurs on the northwest side of the trough, where a surface high pressure tends to develop. However, other processes are more important that this upper- level convergence in affecting the development of high pressure system. Surface low will develop ahead of the upper-level trough.

What is the difference between convergent and divergent?

The main difference between convergent evolution and divergent evolution is that convergent evolution is the development of similar features in two species with different ancestral origins whereas divergent evolution is a process where two different species share a common ancestor.

What is the difference between convergent and divergent in math?

A convergent sequence has a limit — that is, it approaches a real number. A divergent sequence doesn’t have a limit. Thus, this sequence converges to 0. In many cases, however, a sequence diverges — that is, it fails to approach any real number.

What is upper-level divergence?

Divergence occurs when a stronger wind moves away from a weaker wind or when air streams move in opposite directions. When divergence occurs in the upper levels of the atmosphere it leads to rising air.

What is upper divergence above sea level?

Upper divergence above the sea level system. A well – developed divergence in the upper layers of the atmosphere is necessary so that the rising air currents within the cyclone continue to be pumped out and a low pressure maintained at the center.

What is upper level convergence?

The level of nondivergence (LND) is so called because it rests beneath the upper levels of the troposphere, where a great deal of convergence or divergence of air flow takes place. This convergence and divergence is what helps to enhance or suppress the pressure systems moving along the surface.

What is upper air convergence?

convergence and divergence, in meteorology, the accumulation or drawing apart of air, as well as the rate at which each takes place. The terms are usually used to refer specifically to the horizontal inflow (convergence) or outflow (divergence) of air.

What is upper level divergence?

What is upper level trough?

Things get a little more complicated when talking about “lower level” versus “upper level,” which refers to how high in the sky the trough or ridge is happening. For our purposes, an upper-level trough is two to five miles above the Earth’s surface.