Mon, Feb 20, 2012
Aero-Terms are designed to be a daily reminder of the terms,
names, acronyms and explanations of the unique language that
populates the aviation world. Aerospace, sport aviation, fixed
wing, helo, you name it... it's all fair game.
Aero-Terms should serve as a quick but intriguing reminder of
the terms you may use every day, or an introduction to an aspects
of the Aero-World you may not yet be familiar with. ANN also
encourages readers to go beyond the FMI link, and further research
any intriguing terms.
Suggestions for future Aero-Terms are
ALWAYS welcome, as are additions or
discussion of the explanations given for each Aero-Term.
Marked by a concentration of isotherms and strong vertical
shear, this jet is the boundary between the polar air and the
subtropical air. It often divides into two branches, the north and
the south, and marks the high speed core of the prevailing
westerlies. It is associated with the location and motion of the
high and low pressure areas of the middle latitudes, and therefore,
is variable in position, elevation, and wind speed. Its position
tends to migrate south in the Northern Hemispheric winter and north
in the summer, and its core winds increase during the winter and
become less strong in the summer.
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