MET CPAER STUDY QUESTIONS
AND ANSWERS
is the earth's surface heated evenly and why or why not - CORRECT ANSWER✅✅✅no due
to rotation of the earth land and oceans as well as the seasons
what creates low pressure areas - CORRECT ANSWER✅✅✅rising air from the equator
where does wind flow from and to - CORRECT ANSWER✅✅✅from areas of high pressure
to areas of low pressure
what is deflection with regards to wind - CORRECT ANSWER✅✅✅wind does not flow
directly to the low because of the earth's rotation and terrain
when do clouds form - CORRECT ANSWER✅✅✅when water vapour is released clouds
form
gasses in the atmosphere - CORRECT ANSWER✅✅✅78 percent nitrogen
21 percent oxygen
1 percent trapped gasses
major layers of the atmosphere in order from lowest to highest - CORRECT
ANSWER✅✅✅troposphere
stratosphere
mesosphere
thermosphere
exosphere
,where is the troposphere and what takes place in it - CORRECT ANSWER✅✅✅the closest
atmospheric layer to earth and the majority of weather takes place in this area
what is the standard lapse rate - CORRECT ANSWER✅✅✅1.98 degrees celsius per 1000
what is pressure - CORRECT ANSWER✅✅✅the force per unit area exerted against a
surface by the weight of the air above the surface
what is station pressure - CORRECT ANSWER✅✅✅is the actual weight of the column of
air expanding upwards of the station
what is mean sea level pressure - CORRECT ANSWER✅✅✅station pressure reduced to sea
level using the average temp of the past 12 hours
what is pressure gradient - CORRECT ANSWER✅✅✅change of pressure over a given
distance
what do close isobars represent - CORRECT ANSWER✅✅✅strong winds and steep
pressure gradient
high pressure centers and what are they also known as - CORRECT ANSWER✅✅✅sinking
air
air flows outwards and clockwise in northern hemisphere
also called an anticyclone
what causes high pressure systems - CORRECT ANSWER✅✅✅drop in temperature
what weather is associated with high pressure - CORRECT ANSWER✅✅✅fewer cloud
good vis and light wind
, low pressure centers and what is also called - CORRECT ANSWER✅✅✅rising air counter
clockwise with inward flow in northern hemisphere also called a cyclone
what causes low pressure systems - CORRECT ANSWER✅✅✅convergence or air coming
into a region being forced to rise
weather associated with a low pressure system - CORRECT ANSWER✅✅✅cloudy and
precipitation
what is a trough what is it likely to bring - CORRECT ANSWER✅✅✅and elongated area of
low pressure likely to bring wind shift at the surface
what are ridges, what weather - CORRECT ANSWER✅✅✅elongated area of high pressure
with a low on each side- good weather
what is a col, what weather - CORRECT ANSWER✅✅✅a neutral region between two highs
and two lows
likely to bring fog in the winter and thunderstorms in the summer
what temperature of air has a higher true altitude - CORRECT ANSWER✅✅✅warmer air
how is mean sea level pressure found - CORRECT ANSWER✅✅✅average temp from the
last 12 hours
high pressure to low pressure altimeter will - CORRECT ANSWER✅✅✅read too high
low pressure to high pressure altimeter will - CORRECT ANSWER✅✅✅read too low
what is true altitude - CORRECT ANSWER✅✅✅exact height above sea level
AND ANSWERS
is the earth's surface heated evenly and why or why not - CORRECT ANSWER✅✅✅no due
to rotation of the earth land and oceans as well as the seasons
what creates low pressure areas - CORRECT ANSWER✅✅✅rising air from the equator
where does wind flow from and to - CORRECT ANSWER✅✅✅from areas of high pressure
to areas of low pressure
what is deflection with regards to wind - CORRECT ANSWER✅✅✅wind does not flow
directly to the low because of the earth's rotation and terrain
when do clouds form - CORRECT ANSWER✅✅✅when water vapour is released clouds
form
gasses in the atmosphere - CORRECT ANSWER✅✅✅78 percent nitrogen
21 percent oxygen
1 percent trapped gasses
major layers of the atmosphere in order from lowest to highest - CORRECT
ANSWER✅✅✅troposphere
stratosphere
mesosphere
thermosphere
exosphere
,where is the troposphere and what takes place in it - CORRECT ANSWER✅✅✅the closest
atmospheric layer to earth and the majority of weather takes place in this area
what is the standard lapse rate - CORRECT ANSWER✅✅✅1.98 degrees celsius per 1000
what is pressure - CORRECT ANSWER✅✅✅the force per unit area exerted against a
surface by the weight of the air above the surface
what is station pressure - CORRECT ANSWER✅✅✅is the actual weight of the column of
air expanding upwards of the station
what is mean sea level pressure - CORRECT ANSWER✅✅✅station pressure reduced to sea
level using the average temp of the past 12 hours
what is pressure gradient - CORRECT ANSWER✅✅✅change of pressure over a given
distance
what do close isobars represent - CORRECT ANSWER✅✅✅strong winds and steep
pressure gradient
high pressure centers and what are they also known as - CORRECT ANSWER✅✅✅sinking
air
air flows outwards and clockwise in northern hemisphere
also called an anticyclone
what causes high pressure systems - CORRECT ANSWER✅✅✅drop in temperature
what weather is associated with high pressure - CORRECT ANSWER✅✅✅fewer cloud
good vis and light wind
, low pressure centers and what is also called - CORRECT ANSWER✅✅✅rising air counter
clockwise with inward flow in northern hemisphere also called a cyclone
what causes low pressure systems - CORRECT ANSWER✅✅✅convergence or air coming
into a region being forced to rise
weather associated with a low pressure system - CORRECT ANSWER✅✅✅cloudy and
precipitation
what is a trough what is it likely to bring - CORRECT ANSWER✅✅✅and elongated area of
low pressure likely to bring wind shift at the surface
what are ridges, what weather - CORRECT ANSWER✅✅✅elongated area of high pressure
with a low on each side- good weather
what is a col, what weather - CORRECT ANSWER✅✅✅a neutral region between two highs
and two lows
likely to bring fog in the winter and thunderstorms in the summer
what temperature of air has a higher true altitude - CORRECT ANSWER✅✅✅warmer air
how is mean sea level pressure found - CORRECT ANSWER✅✅✅average temp from the
last 12 hours
high pressure to low pressure altimeter will - CORRECT ANSWER✅✅✅read too high
low pressure to high pressure altimeter will - CORRECT ANSWER✅✅✅read too low
what is true altitude - CORRECT ANSWER✅✅✅exact height above sea level
