meteorology ch6 self quiz

If the air temp is 12 Deg C and the vapor pressure is the same as the saturation vapor pressure, the relative humidity is... Less than 100% More than 100% 100%

100

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 3 33.3 40 300 333

33.3

A lapse of ____ Cel Deg per 1km is stable for clear air and unstable for cloudy air 3 7 13 5 11

7

A lapse rate of ____ Cel Deg per 1000 m is conditionally stable 12 4 8 15 2

8

A lapse rate of____ Cel Deg per 1000 m is unstable for unsaturated (clear) air parcels 11 8 1 6 None of these

8

In winter, the precipitaiton of h20 value is likely to b highest in ___. Miami, FL Denver, CO Milwaukee, WI

Miami

___, annual precipitation is less than annual evaporation. A. On the ocean B. ON the continents

On the ocean

All of the following soundings (temp profiles) always indicate stable atmosphereic conditions w/ the exception of Temp inversion Isothermal conditions No change in temp w/ alt A drop of temp w/ alt An increase in temp w/ alt

a drop of temp

As saturated (cloudy) air flows up the windward slopes of a mountain range The relative humidity increases The mixing ratio doesn't change The saturation mixing ratio decreases The air temp rises None of these

air temp rises

A lapse rate of ____ Cel Deg per 1000m is stable for unsaturated air parcels... 8 7 2 All of the above

all

As a clear parcel of air ascends dry adiabatically Its relative humidity increases Its saturation vapor pressure decreases Its temp drops All of the above None of these

all

As unsaturated (clear) air flows down the leeward slops of a mountain range, The air temp rises The relative humidity decreases The saturation vapor pressure increases All of the above None of these

all

Air mass advection ___cahnges the relative humidity Can Can't

can

Sublimation is to deposition as evaporation is to ____. Evapotranspiration Sublimation Relative humidity Deposition Condensation

cond

___, annual precipitation is greater than annual evapotranspiration On the ocean On the continents

cont

2 = 2 volumes of air at the same temp and pressure have different amounts of h20 vapor in them. The air parcel w/ the higher relative humidity will... Weigh more than the other parcel Contain more molecules than the other parcel Contain the same number of molecules as the other parcel Weigh the same as the other parcel

contain the same number

If the temp of an unsaturated (clear) air parcel doesn't change while mixing ratio increases, the density of the parcel___... Increases Decreases Doesn't cahnge

dec

If a saturated (cloudy) air parcel is heated (say by absorption of radiation), its relative humidity ___... Increases Decreases Doesn't change

decreases

A relatively warm surface tends to___ the overlying air Stabalize Destabalize

destablalize

As the temp of a saturated (cloudy) air parcel falls, its relative humidity ___... Increases Decreases Doesn't change

doesnt change

In an isothermal temp profile, the air temp Doesn't change w/ altitude Decreases w/ alt Increases w/ alt

doesnt'

Unstable air___ vertical motion of air parcels... Enhances Suppresses Has no effect on

enhances

Rising parcels of saturated (cloudy) air do no cool as rapidly as rising parcels of unsaturated (clear) air because Rising parcels of saturated air do work in expanding Expansional cooling of saturated air is partially compensated for by release of latent heat Saturated air parcels r always warmer than their surroundings All of the above None of the above

expansional cooling...

On a clear and calm day, the relative humidity usually ____ between sunrise and early afternoon... Rises Falls Doesn't fall

falls

Suppose tht the vapor presssure of the cold outside air is the same as the vapor pressure of the warm air indoors. If the door is opened and the cold air replaces some fo the warm air, then the new relative humidity indoor would b Higher than b4 The same as b4 Lower than b4

higher than

___ on a Stuve diagram are isobars Diagonal lines Horizontal lines Vertical lines

horizontal

An ex of sublimation is... Dew forming on grass Ice disappearing while temps remain below freezing Melting snow Frost forming on glass

ice

The greatest amount of latent heat is absorbed form the environment wen Ice changes directly to vapor Ice melts Liquid h20 changes to vapor Frost forms

ice changes directly to vapor

A temp inversion is characterized by an ____ of air temp w/ altitude Increase Decrease

inc

The saturation vapor pressure____ w/ rising air temp Decreases Increases

inc

Rising air temp causes the saturation mixing ratio to ____ Increase Decrease

increase

A rain shadow is situated downwind from the ___ slopes of a high mountian barrier Windward Soutehrn Leeward

leeward

In an agricultural field, direct evaporation of h20 from the soil is usually____ transpiration of water by plants Less than About the same as More than

less

Clouds are___ to develop if a radiosonde sounding indicates unstable air. Less likely More likely

more

Cumulus clouds are ____ likely to build into thunderstorm clouds wen the air temp profile (sounding) indicates unstable conditions Most Least Not

most

As an aircraft ascends within the troposphere, the external... Air presure increases Vapor pressure increases Saturation mixing ratio increases Air density increases None of these

none

As an unsaturated parcel of air ascends dry adiabatically, Its relative humidity decreases Its saturation vapor pressure increases Its temp rises All of the above None of these

none

If the mixing ratio of a parcel of air is 6 grams per kilogram and the relative humidity is 25%, the saturation mixing ratio is ___ grams per kilogram 1.5 12 8 2 None of these

none

___, annual precipation is less than annual evaporation On the ocean On the continents

ocean

The max pressure tht h20 vapor molecules could exert if the air were saturated is called the Saturation vapor pressure Dewpoint Saturation mixing ratio Saturation relative humidity Saturation abs humidity

saturtion vapor pressure

A snow cover tends to____ the overlying air. Stabalize Destabalize

stabalize

Normally, the stratosphere is ____ Stable Unstable Conditionally stable

stable

___ air tends to suppress convection Unstable Stable

stable

Evaporation is to condensation as deposition is to___... Evaporation Precipitation Evapotranspiration Sublimation None of these

subl

Stable air___ vertical motion of air parcels Enhances Suppresses Has no effect on

sup

2 = volumes of air have the same temp and pressure. One contains more h20 vapor than the other Both volumes of air contain the same number of gaseous molecules The more humid parcel contains more gaseous molecules than the other The drier parcel contains more gaseous molecules than the other. None of these

the more humid parcel...

Conditional stability indicates tht an air layer is... Stable for both cloudy and clear air parcels Unstable for cloudy stable for clear air parcels Stable for cloudy and unstable for clear air parcels Unstable for both cloudy and clear air parcels None of these

unstable for cloud stable for clear air parcels

Conditional stability indicates that an air layer is... Stable for both saturated and unsaturated air parcels Unstable for saturated and stable for unsaturated air parcels Stable for saturated and unstable for unsaturated air parcels Unstable for both saturated and unsaturated air parcels None of the above

unstable for saturated

If the air temp drops w/ alt such tht the actual lapse r8 (sounding) is 7 F degreese per 1000 ft, the air layer is ___ for saturated (cloudy) air parcels and ____ for unsaturated (clear) air parcles Stable...stable Unstable...unstable Stable...unstable Unstable...stable

unstable...unstable...

Cumulus clouds r more likely to form over Snow covered ground in winter A lake surface in summer Vegetated land surface in summer Frozen tundra in winter An ice-covered lake

vegetated

The windward side of mountain ranges r relatively ____ compared to the leeward side Dry Wet

wet