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ATMS 1002 Exam 1 Study Guide - CH9&12 With Solution
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ATMS 1002 Exam 1 Study Guide -CH9&12 With Solution
Which of the following factors does not account for the difference in
intensity between East/Gulf Coast cyclones and Rocky Mountain cyclones?
a. Snow cover over the land surfaces contributes to a weakening of the jet
streaks aloft creating upper level convergence in the Rocky Mountain storms
but not the East/Gulf Coast storms because there is no snow cover on the
ocean surface.
b. There is often more than one jetstreak acting to create divergence in the
upper level flow affecting East/Gulf Coast storms.
c. Latent heat release during condensation in the clouds contributes more to
storm intensification along the East and Gulf Coasts.
d. Sensible heat from the ocean surface acts to heat the atmosphere,
contributing more to storm intensification - ANSWER a.
Gulf Coast cyclones are more likely to develop during winters in which:
Select one:
a. the Gulf of Mexico is cooler than normal.
b. there is no vertical wind shear over the Gulf of Mexico.
c. a stationary front between cold polar air and warm tropical air is located
along the Mississippi River valley.
d. the subtropical jetstream is a persistent feature over Mexico and the
, southern United States. - ANSWER d.
Gulf Coast cyclones that follow the Mississippi-Ohio River storm track, on
average, have _______ compared to Gulf Coast cyclones that track along the
Gulf Coast and eastern seaboard.
:
a. deeper low-pressure centers and weaker winds
b. deeper low-pressure centers and stronger winds
c. less intense low-pressure centers and weaker winds
d. less intense low-pressure centers and stronger winds - ANSWER c.
T or F: The relative orientation of the upper level front, the dryline, and the
cold front in an extratropical cyclone east of the Rockies varies from cyclone
to cyclone. - ANSWER true
Cyclones begin to dissipate when __________.
a. Convergence into the low due to friction exceeds the divergence aloft due
to the jetstreak and curvature effects.
b. Divergence occurs throughout the column of air above the low due to the
jetstreak and curvature effects.
c. A jetstream from the tropics reaches the system altering the balance of
forces within the cyclone.
d. The cold front reaches the Atlantic Ocean. - ANSWER a.
T or F: Comma clouds associated with extratropical cyclones are most easily
seen on contoured temperature maps. - ANSWER false
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