The ____ jet is known to show seasonal variations. In winter, the winds are stronger and
the jet moves farther south as the leading edge of the cold air can extend into subtropical
regions, as far south as Florida and Mexico. In summer, the jet is weaker and is usually
found over more norther...
Quiz 13, WX 201, Quiz 12 WX 201,
WX201 Chpt11, WX HW#15, WX
HW#14-Questions and Correct Verified
Answers
The ____ jet is known to show seasonal variations. In winter, the winds are stronger and
the jet moves farther south as the leading edge of the cold air can extend into subtropical
regions, as far south as Florida and Mexico. In summer, the jet is weaker and is usually
found over more northerly
latitudes.
- tropical easterly
- subtropical
- polar-front
- low-level
- nocturnal
✓ polar-front
In terms of the three-cell model of the general circulation, areas of surface low pressure
should be found at
- the equator and the poles.
- the equator and 60° latitude.
- 30° latitude and the poles.
Top Mark !!!
11
, Top Mark Questions and Correct Verified Answers
- the equator and 30° latitude.
- 30° latitude and 60° latitude.
✓ the equator and 60° latitude.
On a weather map of the Northern Hemisphere, the trade winds would be observed
- south of the subtropical highs.
- north of the polar front.
- between the subpolar lows and the tropical highs.
- between the polar front and the subtropical highs.
- between the subpolar lows and the subtropical highs.
✓ south of the subtropical highs.
In the Northern Hemisphere, the polar jet stream is strongest when
- air north of the polar front is much warmer than air south of the polar front.
- it forms during the summer months.
- air temperatures on the East Coast of the US are much colder than on the West Coast of
the U.S.
- air north of the polar front is much colder than air south of the polar front.
- air temperatures on opposite sides of the polar front are about equal.
✓ air north of the polar front is much colder than air south of the polar front.
The ultimate cause of jet streams is
Top Mark !!!
22
, Top Mark Questions and Correct Verified Answers
- global warming.
- the instream of cold waters from the poles.
- the energy imbalance between high and low latitudes.
- ultraviolet energy from the Sun.
- the fact that water can exist in all three phases at once.
✓ the energy imbalance between high and low latitudes.
On a weather map of the Northern Hemisphere, one would observe the westerlies
- north of the subpolar lows.
- between the subpolar lows and the subtropical highs.
- between the doldrums and the horse latitudes.
- south of the tropical highs.
- between the polar lows and the doldrums.
✓ between the subpolar lows and the subtropical highs.
Generally, in the Northern Hemisphere during July, we would expect to find the tropical
easterly jet stream
- in the upper stratosphere.
- south of the upper-level subtropical high.
- directly over the polar front.
- north of the polar front.
- north of the upper-level subtropical high.
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33
, Top Mark Questions and Correct Verified Answers
✓ south of the upper-level subtropical high.
The world's deserts are found at 30° latitude because
the intertropical convergence zone is located there.
- of the sinking air of the subtropical highs.
- of the doldrums.
- of the convergence of the prevailing westerlies and the Northeast Trades.
- of the sinking air of the polar front.
✓ of the sinking air of the subtropical highs.
Due to Hadley cell formation and the Coriolis force in both hemispheres, winds aloft flow
- southerly.
- easterly.
- randomly.
- northerly.
- westerly.
✓ westerly
Upwelling occurs along the northern California coast because
- of seismic activity on the ocean bottom.
- of volcanic activity on the ocean floor.
- of gravitational attraction between Earth and the Moon.
Top Mark !!!
44
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