ATM 103 Exam 2 With
Complete Solution
What is the LCL? - ANSWER The Lifted Condensation Level. It is the altitude
at which a dry air parcel will become saturated.
What is the LFC? - ANSWER The Level of Free Convection. It is the altitude at
which the temperature of an air parcel is reater than that of the environment.
(Where the parcel begins to rise on its own).
What is the LNB? - ANSWER The Level of Neutral Buoyancy. It is the altitude
at which the environmental temperature becomes greater than that of the
parcel.
What is CIN? - ANSWER Convective Inhibition.
The sum from z = 0 to the LFC of g * ((Tp - Te) / Te) * dz
Does a large value of CIN mean it's hard or easy to trigger convection? -
ANSWER A larger value means it's harder to trigger convection.
, In CIN, is Tp greater than or less than Te? - ANSWER Tp < Te
In CAPE, is Tp greater than or less than Te? - ANSWER Tp > Te
What is CAPE? - ANSWER Convective Available Potential Energy. It shows
how strong a parcel's updraft will be if it reaches the LFC.
The equation for CAPE is the same as CIN:
The sum from z = 0 to the LFC of g * ((Tp - Te) / Te) * dz
Is homogenous nucleation a pure or impure water droplet? - ANSWER A pure
water droplet.
When will homogenous nucleation occur? - ANSWER When relative humidity
> 100%.
The environment must be very cold for this to happen.
How does heterogenous nucleation occur? - ANSWER A non-water partcle
serves as condensation nuclei.
What are the two methods through which raindrops grow? - ANSWER
Collision-coalescence
Complete Solution
What is the LCL? - ANSWER The Lifted Condensation Level. It is the altitude
at which a dry air parcel will become saturated.
What is the LFC? - ANSWER The Level of Free Convection. It is the altitude at
which the temperature of an air parcel is reater than that of the environment.
(Where the parcel begins to rise on its own).
What is the LNB? - ANSWER The Level of Neutral Buoyancy. It is the altitude
at which the environmental temperature becomes greater than that of the
parcel.
What is CIN? - ANSWER Convective Inhibition.
The sum from z = 0 to the LFC of g * ((Tp - Te) / Te) * dz
Does a large value of CIN mean it's hard or easy to trigger convection? -
ANSWER A larger value means it's harder to trigger convection.
, In CIN, is Tp greater than or less than Te? - ANSWER Tp < Te
In CAPE, is Tp greater than or less than Te? - ANSWER Tp > Te
What is CAPE? - ANSWER Convective Available Potential Energy. It shows
how strong a parcel's updraft will be if it reaches the LFC.
The equation for CAPE is the same as CIN:
The sum from z = 0 to the LFC of g * ((Tp - Te) / Te) * dz
Is homogenous nucleation a pure or impure water droplet? - ANSWER A pure
water droplet.
When will homogenous nucleation occur? - ANSWER When relative humidity
> 100%.
The environment must be very cold for this to happen.
How does heterogenous nucleation occur? - ANSWER A non-water partcle
serves as condensation nuclei.
What are the two methods through which raindrops grow? - ANSWER
Collision-coalescence
