Noctilucent clouds, a “D” layer, and excellent flying conditions.
A constantly warming temperature, mother-of-pearl clouds, and generally poor flying weather.
A maximum temperature of 7°C, the strongest concentration of ozone, dense cirrus clouds, and occasionally poor flying conditions.
A temperature that remains isothermal to about 100,000 feet, the strongest concentration of ozone, and excellent flying conditions.
It absorbs ultraviolet radiation.
The most the air can hold is 6 percent.
The more water vapor, the lighter the air will be.
It keeps the earth from becoming too hot by absorbing solar radiation.
Oxygen and ozone.
Ozone and water vapor.
Oxygen and water vapor.
Ozone and carbon dioxide.
Unequal heating of the earth.
Rotation of the earth.
The speed of rotation.
The radius of rotation.
The cyclonic rotation of the earth.
The anticyclonic rotation of the earth.
An opposing force to pressure gradient.
An apparent force, and therefore, it does not exist.
To the right.
To the left.
Balanced against friction and coriolis forces (CoF).
And friction balanced against centrifugal force (CeF).
Balanced against coriolis and centrifugal forces.
And centrifugal balanced against CoF.
Icelandic and Asiatic lows.
Icelandic and Aleutian lows.
Aleutian and Asiatic lows.
The Aleutian lows.
Above the strongest horizontal shear.
Below the strongest horizontal shear.
Above the jet core.
Below the jet core.
Above the jet core.
North of the jet core.
South of the jet core.
At the jet core’s narrowest horizontal point.
Locate the 500 millibar maximum wind band.
Locate the position of the –11° Centigrade isotherm.
Locate the position of the –17° Centigrade isotherm.
Find where the thermal concentration is more than 5° Centigrade in 200 miles.
Width of the 500 millibar isotherm ribbon.
Width of the 500 millibar maximum wind band.
Distance between the –17° Centigrade and the –20° Centigrade isotherms at 500 millibar.
Distance between the –20° Centigrade and the –26° Centigrade isotherms at 500 millibar.
In the region of difluence of the STJ and polar front jet (PFJ).
In the region of confluence of the STJ and PFJ.
The STJ’s eastern most extension.
The STJ’S western most extension.
Often develop more than 400 miles apart.
Suggest that the jet stream is beginning to dissipate.
Are somewhat rare and usually occur either singly or in pairs.
Are formed during periods when the jet stream is well organized and the core exceeds 100kts.
Decrease in amplitude.
Increase in amplitude.
Deflect toward lower heights.
Deflect toward greater heights.
By electromagnetic waves.
Horizontally by the wind.
Vertically by the wind.
By molecular motion.
Uniform surface, stagnant air, and large-scale difluent flow.
Must be over water, stagnant air, and large-scale difluent flow.
Any nonuniform surface, stagnant air, and large-scale difluent flow.
Must be over smooth land, stagnant air, and large-scale difluent flow.