ATMO 220 final exam actual questions with correct detailed answers.
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Course
EIND
Institution
EIND
How does the wind compare in a ridge to the geostrophic wind?
a. Faster than the geostrophic wind
b. Slower than the geostrophic wind
c. Same as the geostrophic wind
d. Not related to the geostrophic wind - correct answer a. Faster than the geostrophic wind
...
How does the wind compare in a ridge to the geostrophic wind?
a. Faster than the geostrophic wind
b. Slower than the geostrophic wind
c. Same as the geostrophic wind
d. Not related to the geostrophic wind - correct answer a. Faster than the
geostrophic wind
The tropopause is at its highest altitudes in the polar regions and its lowest in the tropics.
true
false - correct answer false
The jetstream contains regions where locally strong pressure gradient produce exceptionally strong
winds called ________.
a. Jetstreak
b. Convergence
c. Curvature
d. Entrance Region - correct answer a. Jetstreak
When raindrops evaporate, latent heat is released into the atmosphere.
true
false - correct answer false
What is the term used to describe where airmasses form?
a. air-modifier
b. frontal zone
c. source region
,d. airmass locator - correct answer c. source region
Visible satellite imagery is most helpful during nighttime hours.
true
false - correct answer false
Which of the following would typically be the coldest airmass in winter?
a. polar airmass over northern Canada
b. tropical airmass that moved north over the Atlantic
c. continental airmass over the central United States
d. maritime airmass near Iceland - correct answer a. polar airmass over northern
Canada
At 0000 UTC 14 September, the actual date in the United States is still 13 September.
true
false - correct answer true
The 500 mb surface will be closer to the earth's surface over central Canada compared to over southern
Mexico.
true
false - correct answer true
Which of the following can enhance surface low-pressure systems?
a. divergence in the left exit region of a jet streak
b. convergence due to curvature in the jet stream
c. the cooling of the air in the vicinity of the low
d. None of the above are correct. - correct answer a. divergence in the left exit
region of a jet streak
Divergence aloft in the upper half of the troposphere is normally associated with which of the following?
,a. high-pressure development and divergence at the surface
b. high-pressure development and convergence at the surface
c. low-pressure development and divergence at the surface
d. low-pressure development and convergence at the surface - correct answer d.
low-pressure development and convergence at the surface
Weather prediction models do not need information about surface conditions such as terrain height or
soil temperature since the atmosphere behaves as an independent fluid.
true
false - correct answer false
On a surface map, a strong pressure gradient exists where isobars are packed closely together.
true
false - correct answer true
What does it mean if airflow in the Northern Hemisphere is cyclonic?
a. Air is flowing clockwise
b. Air is flowing counterclockwise
c. Air is flowing at a variable speed parallel to isobars
d. Air is flowing in a straight line parallel to straight isobars - correct answer b. Air is
flowing counterclockwise
What two forces are in balance when geostrophic balance is achieved?
a. The Coriolis force balances the gravitational force.
b. The frictional force balances the gravitational force.
c. The horizontal pressure gradient force balances the Coriolis force.
d. The gravitational force balances the vertical pressure gradient force. - correct answer
c. The horizontal pressure gradient force balances the Coriolis force.
, The accuracy of a forecast from a numerical weather prediction model on average will progressively get
worse as forecasts are made farther into the future.
true
false - correct answer true
The uneven distribution of heating from the sun is the primary driver of the geographical variation of
earth's climate and weather.
true
false - correct answer true
When air is in geostrophic balance, it flows __________ to isobars _________ the boundary layer.
a. parallel; within
b. parallel; above
c. perpendicular; above
d. perpendicular; within - correct answer b. parallel; above
The ________acts to the right of air motion in the Northern Hemisphere.
a. Coriolis force
b. Frictional force
c. Gravitational force
d. Vertical pressure gradient force - correct answer a. Coriolis force
The tilt of the earth's axis enhances the contrast in temperature between the tropics and the poles in
winter.
true
false - correct answer true
Most thunderstorms do not extend very far into the stratosphere. What is the reason for this?
a. The stratosphere is stable since the stratosphere is an inversion layer and therefore inhibits vertical
motions.
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