Search results
Results From The WOW.Com Content Network
A convergence zone in meteorology is a region in the atmosphere where two prevailing flows meet and interact, usually resulting in distinctive weather conditions. [1] This causes a mass accumulation that eventually leads to a vertical movement and to the formation of clouds and precipitation . [ 1 ]
Vertical movements occur when there is convergence and divergence at different levels of the atmosphere. For example, near the jet stream, winds increase when approaching its most intense region and decreases when it moves away. Thus, there are areas where the air accumulates and must come down, while in other areas there is a loss and an ...
The circulation has been observed to be between 0°–20° to the right of the wind in the northern hemisphere [7] and the helix forming bands of divergence and convergence at the surface. At the convergence zones, there are commonly concentrations of floating seaweed, foam and debris along these bands.
Representation of alternating troughs and ridges in upper-level westerlies for the Northern Hemisphere, with regions of convergence and divergence labeled. A trough is an elongated region of relatively low atmospheric pressure without a closed isobaric contour that would define it as a low pressure area.
The characteristics of the meteorological environment that MCCs form in are strong warm air advection into the formation environment by a southerly low-level jet stream (wind maximum), strong moisture advection which increases the relative humidity of the formation environment, convergence of air near the surface, and divergence of air aloft ...
An upper-level jet streak. DIV areas are regions of divergence aloft, which usually leads to surface convergence and cyclogenesis. Constant pressure charts normally contain plotted values of temperature, humidity, wind, and the vertical height above sea level of the pressure surface. [29] They have a variety of uses.
In a weather map as the one to the right, a col is a region where the position of highs (H) and lows (L) produces a convergence or divergence of the airflow, such as with two juxtaposed highs and two juxtaposed lows.
Surface ridges, just like highs, generate fair weather because they develop under wind convergence in the negative vorticity advection zone ahead of the upper-level ridge. [2] The vertical downward air motion then gives a divergence of the winds near the surface.