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WX 201 Ch. 6
Terms in this set (21)
The dry adiabatic rate is ____ greater than the moist adiabatic rate.
The difference between "moist" and "dry" adiabatic rates is due to the fact that
latent heat is released by a rising parcel of saturated air.
Altocumulus clouds that show vertical development and produce tower-like extensions are called
If the environmental lapse rate is 5 ° C per 1,000 m and the temperature at Earth's surface is 25 ° C, then the air temperature at 2,000 m above the ground is
An afternoon sky full of cumulus humilis clouds with little vertical growth indicates ____ weather.
Conditional instability occurs whenever the environmental lapse rate is ____ the moist adiabatic rate and the dry adiabatic rate.
What transfers heat upward into the atmosphere?
When rising air cools to its dew-point temperature, its relative humidity typically is ____ percent.
Conditional instability depends on the condition of
If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is
An inversion represents an extremely stable atmosphere because air that rises into the inversion will eventually become ____ and ____ dense than the surrounding air.
The largest amount of latent heat gets released in a ____ parcel of ____ saturated air.
If an air parcel is given a small push upward and it continues to move upward on its own accord, the atmosphere is said to be
Absolute instability results when the environmental lapse rate is ____ the ____ adiabatic rate.
greater than; dry
A rising parcel of air that does not exchange heat with its surroundings is an example of
an adiabatic process.
Altocumulus castellanus appearing in the sky indicates that the mid-level of the troposphere is becoming
The elevation where clouds form is called ____ level.
When cloud elements become arranged in rows they are called cloud
Convective instability is associated with the development of
severe storms, such as thunderstorms and tornadoes.
Which cloud type below would most likely form in an unstable atmosphere?
The rate at which the temperature changes inside a rising (or descending) parcel of saturated air is called the ____ rate.
moist adiabatic lapse
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