Meteorology

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If the mixing ratio of a parcel of air is 6 grams per kilogram and the relative humidity is 25 percent, the saturation mixing ratio is ______ grams per kilogram.

1) 1.5 2) 12 3) 8 4) 2 5) None of these is correct.

As a clear parcel of air ascends dry adiabatically,

1) its relative humidity increases. 2) its saturation vapor pressure decreases. 3) its temperature drops. 4) All of the above are correct.

If the air temperature is 12 °C and the vapor pressure is the same as the saturation vapor pressure, the relative humidity is

100%

A lapse rate of ______ Celsius degrees per 1000 meters is unstable for unsaturated (clear) air parcels.

11

If the mixing ratio of a parcel of air is 2 grams per kilogram and its saturation mixing ratio is 6 grams per kilogram, the relative humidity is ______ percent.

33.3

______ on a Stüve diagram are isobars.

Horizontal lines

In winter, the precipitable water value is likely to be highest in ________.

Miami, FL

______, annual precipitation is greater than annual evapotranspiration.

On the continents

When the surface in a place is warmed, the overlying air tends to ____________ ..

become less stable

As the temperature of a saturated (cloudy) air parcel falls, its relative humidity ______.

does not change

In an isothermal temperature profile, the air temperature

does not change with altitude.

Unstable air ______ vertical motion of air parcels.

enhances

Rising parcels of saturated (cloudy) air do not cool as rapidly as rising parcels of unsaturated (clear) air because ___________ .

expansional cooling of saturated air is partially compensated for by the release of latent heat that accompanies cloud formation.

As the temperature rises over the course of a clear, calm day, the relative humidity usually ______ .

falls

Rising air temperature causes the saturation mixing ratio to ______

increase

The saturation vapor pressure ______ with rising air temperature.

increases

A rain shadow is situated downwind from the ______ slopes of a high mountain barrier.

leeward

Cumulus clouds are ______ likely to build into thunderstorm clouds when the air temperature profile (sounding) indicates unstable conditions.

most

The ___________ is the maximum pressure that water vapor molecules could exert if the air were saturated.

saturation vapor pressure.

A snow cover tends to ______ the overlying air, thus inhibiting convection.

stabilize

______ air tends to suppress convection and cloud development.

stable

Stable air ______ vertical motion of air parcels.

suppresses

Unstable air ______ vertical motion of air parcels.

suppresses

Conditional stability indicates that an air layer is ______________ .

unstable for cloudy and stable for clear air parcels.

Conditional stability indicates that an air layer is

unstable for saturated and stable for unsaturated air parcels.

If the air temperature drops with altitude such that the actual lapse rate (sounding) is 7 Fahrenheit degrees per 1000 feet, the air layer is ______ for saturated (cloudy) air parcels and ______ for unsaturated (clear) air parcels.

unstable...............unstable

The windward side of mountain ranges are relatively ______ compared to the leeward side.

wet


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