WX 301 Exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
pressure gradient - CORRECT ANSWER - the amount of pressure change occurring over a
given distance
Pressure Gradient Force (PGF) - CORRECT ANSWER - the force resulting from a pressure
gradient
-always oriented perpendicular to the isobar and points torwards lower pressure
-only force to generate the wind
Coriolis effect - CORRECT ANSWER - The effect of Earth's rotation on the direction of
winds and currents.
which direction does the wind go in the north hemisphere because of coriolis effect - CORRECT
ANSWER - right
which direction does the wind go in the south hemisphere because of coriolis effect - CORRECT
ANSWER - left
what is the effect of the coriolis effect at the poles and equator - CORRECT ANSWER -
equator= 0 wind
poles= strongest winds
the wind vectors depend on which forces: - CORRECT ANSWER - -Pressure force gradient
-corolios effect
-centrifugal force
-friction
, the geostrophic wind - CORRECT ANSWER - Results from balance between the pressure
gradient forces and the coriolis force. faster the height contours, the faster the GW
geostrophic wind direction - CORRECT ANSWER - -if your back is to the wind, low pressure
is to the left
-paralells the isobars
centrifugal force - CORRECT ANSWER - an apparent force that acts outward on a body
moving around a center rotation, as an object moves in a circular path
subgeostrophic - CORRECT ANSWER - flow occurs around Low pressure areas
supergeostrophic - CORRECT ANSWER - flow occurs around High pressure areas
atmoshperic boundary - CORRECT ANSWER - 1-2km above the surface
How does friction affect wind direction? - CORRECT ANSWER - converges around low
areas of pressure
-divergent around high areas of pressure
convergent - CORRECT ANSWER - coming together, piling up
divergent - CORRECT ANSWER - variant, moving apart
how to calculate winds aloft with winds over 99knts - CORRECT ANSWER - add 50 degrees
to the wind direction
add 100 knots to speed
Exam Questions and CORRECT Answers
pressure gradient - CORRECT ANSWER - the amount of pressure change occurring over a
given distance
Pressure Gradient Force (PGF) - CORRECT ANSWER - the force resulting from a pressure
gradient
-always oriented perpendicular to the isobar and points torwards lower pressure
-only force to generate the wind
Coriolis effect - CORRECT ANSWER - The effect of Earth's rotation on the direction of
winds and currents.
which direction does the wind go in the north hemisphere because of coriolis effect - CORRECT
ANSWER - right
which direction does the wind go in the south hemisphere because of coriolis effect - CORRECT
ANSWER - left
what is the effect of the coriolis effect at the poles and equator - CORRECT ANSWER -
equator= 0 wind
poles= strongest winds
the wind vectors depend on which forces: - CORRECT ANSWER - -Pressure force gradient
-corolios effect
-centrifugal force
-friction
, the geostrophic wind - CORRECT ANSWER - Results from balance between the pressure
gradient forces and the coriolis force. faster the height contours, the faster the GW
geostrophic wind direction - CORRECT ANSWER - -if your back is to the wind, low pressure
is to the left
-paralells the isobars
centrifugal force - CORRECT ANSWER - an apparent force that acts outward on a body
moving around a center rotation, as an object moves in a circular path
subgeostrophic - CORRECT ANSWER - flow occurs around Low pressure areas
supergeostrophic - CORRECT ANSWER - flow occurs around High pressure areas
atmoshperic boundary - CORRECT ANSWER - 1-2km above the surface
How does friction affect wind direction? - CORRECT ANSWER - converges around low
areas of pressure
-divergent around high areas of pressure
convergent - CORRECT ANSWER - coming together, piling up
divergent - CORRECT ANSWER - variant, moving apart
how to calculate winds aloft with winds over 99knts - CORRECT ANSWER - add 50 degrees
to the wind direction
add 100 knots to speed
