Met Test 1 Part 4

Air which resists vertical displacements is considered to be:

Stable

Most thunderstorms do not extend very far into the stratosphere because the air in the stratosphere is:

Stable

Conditional instability depends on the condition of:

The environmental lapse rate with respect to both the dry adiabatic rate and the moist adiabatic rate

An example of orographic clouds would be:

clouds forming on the windward slope of a mountain

Which set of conditions, working together, will make the atmosphere the most stable?

cool the surface and warm the air aloft

A knowledge of air stability is important because:

it determines the vertical motion of air

The rate at which the temperature changes inside a rising (or descending) parcel of saturated air is called the:

moist adiabatic lapse rate

If an air parcel is given a small push upward and it falls back to its original position, the atmosphere is said to be:

stable

A conditionally unstable atmosphere is _____ with respect to unsaturated air and ____ with respect to saturated air.

stable; unstable

The dry adiabatic rate is the rate at which:

temperature changes in a rising or descending parcel of unsaturated 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:

unstable

What two sets of conditions, working together, will make the atmosphere the most unstable?

warm the surface and cool the air aloft

Which of the following conditions would be described as the most stable?

an inversion

The rate at which the actual air temperature changes with increasing height above the surface is referred to as the:

Environmental lapse rate

In a conditionally unstable atmosphere, the environmental lapse rate will be ____ than the moist adiabatic rate and ____ than the dry adiabatic rate.

Greater, less

If you were to take a trip during the summer from Ohio to Nevada, you would most likely observe that afternoon cumulus clouds ____ as you travel west.

Increase in elevation

Subsidence ____ stability.

Increases

Which of the following cloud types would commonly be found downwind of a mountain?

Lenticular clouds

The temperature an air parcel would have if it were moved to a pressure of 1,000 mb at the dry adiabatic rate is called the:

Potential temperature

The name commonly used to describe the drier region observed on the downwind (leeward) side of a mountain range is:

Rain Shadow (Rain Shower)

The difference between the "moist" and "dry" adiabatic rates is due to:

Relative humidity

The most latent heat would be released in a ____ parcel of ____ saturated air.

Rising, Warm

Which cloud type below would most likely form in an unstable atmosphere?

Cumulonimbus

Which of the following environmental lapse rates would represent the most unstable atmosphere in a layer of unsaturated air?

110C per 1,000 m

A sounding can be measured by:

A radiosonde

If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is:

Absolutely stable

When the environmental lapse rate decreases more rapidly with height than the dry adiabatic rate, the atmosphere is:

Absolutely unstable

Which of the following sets of conditions would produce a cumulus cloud with the lowest base?

Air temperature 90 degrees Fahrenheit, dew point temperature 60 degrees F

The dry adiabatic lapse rate is ____ greater than the moist adiabatic lapse rate.

Always

A rising parcel of air that does not exchange heat with its surroundings is an example of:

An adiabatic process

____ are found beneath fair-weather cumulus (cumulus humilis) clouds, whereas ____ are found between the clouds.

Updrafts; downdrafts