Convective Circulation Patterns Associated With Sea Breezes Are Caused By

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Term

Every phsical process of weather is accompanied by, or is the sesult of, a…

You are watching: Convective circulation patterns associated with sea breezes are caused by

Definition

heat exchange
Term

What causes variations in altimeter settings between weather reporting points?
Definition

Unequal heating of the Earth”s surface
Term

The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference in direction is primarily due to
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friction between the wind and surface.
Term

Convective circulation patterns associated with sea breezes are caused by
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cool, dense air moving inland from over the water.
Term

The development of thermal depends upon
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solar heating.
Term

The boundary between two different air masses is referred to as a
Definition

front
Term

One weather phenomenon which will always occur when flying across a front is a change in the
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wind direction
Term

One of the most easily recongnized discontinuities across a front is
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a change in temperature.

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Term

If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected on the landing approach?
Definition

Wind-shear turbulence
Term

A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a
Definition

squall line
Term

What conditions are necessary for the formation of thunderstorms?
Definition

High humidity, lifting force, and unstable conditions
Term

During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Definition

Dissipating
Term

Thunderstorms reach their greatest intensity during the
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mature stage
Term

What feature is normally associated with the cumulus stage of a thunderstorm?
Definition

Continuous updraft
Term

Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Definition

Precipitation beginning to fall
Term

Thunderstorms which generally produce the most intense hazard to aircraft are
Definition

squall line thunderstorms
Term

Which weather phenomenon is always associated with a thunderstorm?
Definition

Lightning
Term

One in-flight condition necessary for structural icing to form is
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visible moisture
Term

In which environment is aircraft structural ice most likely to have the highest accumulation rate?
Definition

Freezing rain
Term

The presence of ice pellets at the surface is evidence that there
Definition

is a temperature inversion with freezing rain at a hight altitude.
Term

An almond or lens-shaped clod which appears stationary, but which may contain winds of 50 knots or more, is referred to as
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a lenticular cloud
Term

Crests of standing mountain waves may be marked by stationary, lens-shaped clouds known as
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standing lenticular clouds
Term

Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow
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across a mountain ridge, and the air is stable.
Term

Where does wind shear occur?
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At all altitudes, in all directions
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A pilot can expect a wind-shear zone in a temperature inversion whenever the windspeed at 2,000 to 4,000 feet above the surface is a least
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25 knots
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When may hazardous wind shear be expected?
Definition

In areas of low-level temperature inversion, frontal zones, and clear air turbulence
Term

If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 F, what type weather is most likely to develop?
Definition

Fog or low clouds
Term

What is meant by the term “dewpoint”?
Definition

The temperature to which air must be cooled to become saturated.
Term

The amount of water vapor which air can hold depends on the
Definition

air temperature
Term

What are the processes by which moisture is added to unsaturated air?
Definition

Evaporation and sublimation
Term

Which conditions result in the formation of frost?
Definition

The temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint is below freezing
Term

Clouds, fog, or dew will always form when
Definition

water vapor condenses.

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Term

Low-level turbulence can occur and icing can become hazardous in which type of fog?
Definition

Steam fog
Term

In which situation is advection fog most likely to form?
Definition

An air mass moving inland from the coast in winter.
Term

What situation is most conducive to the formation of radiation fog?
Definition

Warm, moist air over low, flatland areas on clear, calm nights
Term

What types of fog depend upon wind in order to exist?
Definition

Advection fog and upslope fog

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