Frontal Zones

Frontal Zones

 

the general location of the main atmospheric fronts above the earth’s surface. The frontal zones separate adjacent regions of the earth where different air masses predominate. The location of a frontal zone is caused by the position of the centers of atmospheric activity, which usually shift northward in the summer in the northern hemisphere and southward in the summer in the southern hemisphere. Several arctic and antarctic fronts (between 60° and 80°N lat. and 60° and 80°S lat.) are usually identified, as well as several polar fronts (between 40° and 60°N lat. and 60° and 80°S lat.) and the intertropical fronts (between tropical air masses with different characteristics within a single hemisphere). The zone of intertropical convergence, in its long-term average position, is also considered a frontal zone.

References in periodicals archive ?
Using this tracking information, researchers identified areas of the ocean that were important for multiple species, shark 'hot spots', that were located in ocean frontal zones, boundaries in the sea between different water masses that are highly productive and food-rich.
Researchers found multi-species pelagic shark hotspots were mostly located in frontal zones, boundaries in the sea between different water masses that are highly productive and food-rich.
The frontogenesis function can be either positive or negative, and some analyzed synoptic frontal zones may experience positive frontogenesis along some parts and negative frontogenesis (i.e., frontolysis) along other parts, as in the bent-back frontal zone of the Shapiro-Keyser model (e.g., Takayabu 1986; Shapiro and Keyser 1990; Schultz et al.
"Frontal zones may arrive from the northwest at times bringing spells of rain, sleet and snow.
As phytoplankton flourish in these dynamic frontal zones, so do populations of zooplankton, the tiny marine animals that eat phytoplankton, much the way land animals eat plants.
Those place provide us with creative opportunities, such as the creation of seasonal national parks to protect species at crucial points in their lives, or mobile marine parks focused on productive areas like the "frontal zones", where marine animals and intensive fishing meet.
As a result, flying conditions tend to be pretty good, deteriorating only along the frontal zones. With enough moisture, however, these fronts can sometimes produce large lines of storms and showers.
I look to see if I'm dealing with a classic cold front, a warm front or the worst combination, an occluded frontal system, and I decide on a flight track that will have me penetrating the frontal zones at their weakest, during the time of day when the weather along such lines is generally the least active.
Thermal frontal zones have been recognized as high CHL and ZV areas [52-54].
Northern Illinois, southern Wisconsin, and eastern Iowa were in and near frontal zones from midnight on July 22 until late on July 24.
Other two tilt meters were installed in gallery frontal zones, just behind the superficial loosened zone found in the two said galleries.