CPAER METEOROLOGY 2024/2025 Questions and
Answers Verified
order of the layers of the atmosphere from lowest to highest - ANSWER troposphere
stratosphere
mesosphere
thermosphere
Where is the ozone layer located? - ANSWER upper stratosphere (49,000ft - 115, 000ft)
what are the parameters of the troposphere? - ANSWER 50- 65,000 ft at the equator
25- 35,000 ft at the poles
what type of radiation is absorbed by the earth? - ANSWER short wave radiation
what type of radiation is absorbed by the atmosphere? - ANSWER long wave radiation
what are the sources of uneven heating of the atmosphere? - ANSWER seasonal
variations (some places get more sun than others)
latitude variations
diurnal variations
different surfaces of the earth absorbing or reflecting heat differently
what does water do in the creation of weather? - ANSWER provides a mechanism for
transporting thermal energy to different parts of the globe
,what can a temperature inversion look like in terms in lapse rates? - ANSWER the lapse
rate would be shown as negative
What is the dry adiabatic lapse rate? - ANSWER 3 degrees celsium per 1,000 feet.
What is the wet adiabatic lapse rate? - ANSWER 1.5 celsius per 1000 feet
what is a characteristic stable atmosphere? - ANSWER occurs when environmental lapse
rate is shallow or even negative.
what is a characteristic of an unstable atmosphere? - ANSWER when the environmental
lapse rate is steeper than both the dry lapse rate and the wet.
what is a characteristic of a conditionally unstable atmosphere? - ANSWER when
environmental lapse rate is between the dry and wet lapse rates, which causes air to
rise in shorter amounts and becomes cooler than the surrounding air
what are the properties of the standard atmosphere? - ANSWER temperature: 15c
environmental lapse rate: 1.98c (2c) per 1000 feet
pressure at sea level is 29.92 Hg
101.3 millibars
pressure drops by 1' of mercury per 1000ft
height of the tropopause is 36090
the higher the temperature of the air the more ... - ANSWER quantity of water it can
hold
, what is the definition of relative humidity? - ANSWER amount of water in the air relative
to the maximum which i can hold at the temperature and pressure
what is the definition of dewpoint? - ANSWER if air is cooled at a constant pressure the
temperature at which condensation begins.
dry air is more dense then what? - ANSWER water vapour
the higher the humidity, the less .... the air and the ...... the airplane will perform -
ANSWER dense - poorer
definition of convection - ANSWER vertical mouvement of air
definition of advection - ANSWER horizontal mouvement of air
definition of isobars - ANSWER lines of constant pressure
isotachs definition - ANSWER lines of constant wind velocity
contour lines - ANSWER lines of equal elevation (where altitude at which a specified
pressure occurs is constant)
air will always move from where to where? - ANSWER high pressure areas to low
pressure areas
the movement from high to low pressure areas can be influenced by which forces? -
ANSWER - coriolis force
- friction
Answers Verified
order of the layers of the atmosphere from lowest to highest - ANSWER troposphere
stratosphere
mesosphere
thermosphere
Where is the ozone layer located? - ANSWER upper stratosphere (49,000ft - 115, 000ft)
what are the parameters of the troposphere? - ANSWER 50- 65,000 ft at the equator
25- 35,000 ft at the poles
what type of radiation is absorbed by the earth? - ANSWER short wave radiation
what type of radiation is absorbed by the atmosphere? - ANSWER long wave radiation
what are the sources of uneven heating of the atmosphere? - ANSWER seasonal
variations (some places get more sun than others)
latitude variations
diurnal variations
different surfaces of the earth absorbing or reflecting heat differently
what does water do in the creation of weather? - ANSWER provides a mechanism for
transporting thermal energy to different parts of the globe
,what can a temperature inversion look like in terms in lapse rates? - ANSWER the lapse
rate would be shown as negative
What is the dry adiabatic lapse rate? - ANSWER 3 degrees celsium per 1,000 feet.
What is the wet adiabatic lapse rate? - ANSWER 1.5 celsius per 1000 feet
what is a characteristic stable atmosphere? - ANSWER occurs when environmental lapse
rate is shallow or even negative.
what is a characteristic of an unstable atmosphere? - ANSWER when the environmental
lapse rate is steeper than both the dry lapse rate and the wet.
what is a characteristic of a conditionally unstable atmosphere? - ANSWER when
environmental lapse rate is between the dry and wet lapse rates, which causes air to
rise in shorter amounts and becomes cooler than the surrounding air
what are the properties of the standard atmosphere? - ANSWER temperature: 15c
environmental lapse rate: 1.98c (2c) per 1000 feet
pressure at sea level is 29.92 Hg
101.3 millibars
pressure drops by 1' of mercury per 1000ft
height of the tropopause is 36090
the higher the temperature of the air the more ... - ANSWER quantity of water it can
hold
, what is the definition of relative humidity? - ANSWER amount of water in the air relative
to the maximum which i can hold at the temperature and pressure
what is the definition of dewpoint? - ANSWER if air is cooled at a constant pressure the
temperature at which condensation begins.
dry air is more dense then what? - ANSWER water vapour
the higher the humidity, the less .... the air and the ...... the airplane will perform -
ANSWER dense - poorer
definition of convection - ANSWER vertical mouvement of air
definition of advection - ANSWER horizontal mouvement of air
definition of isobars - ANSWER lines of constant pressure
isotachs definition - ANSWER lines of constant wind velocity
contour lines - ANSWER lines of equal elevation (where altitude at which a specified
pressure occurs is constant)
air will always move from where to where? - ANSWER high pressure areas to low
pressure areas
the movement from high to low pressure areas can be influenced by which forces? -
ANSWER - coriolis force
- friction
