atmoshpere study guide

Question 1

Changes in air temperature are

Answer 1

cyclic

Question 2

Temperature trend is

Answer 2

whether temperature increases or decreases with increasing altitude

Question 3

what do you use to measure tempurature

Answer 3

thermometer

Question 4

to measure air pressure,

Answer 4

a barometer

Question 5

you use to measure the amount of rain with a

Answer 5

rain gauge,

Question 6

to measure wind speed you use

Answer 6

an anemometer

Question 7

to measure wind direction u use

Answer 7

a wind vane.

Question 8

Factors affecting air pressure are

Answer 8

Altitude
Temperature
Humidity

Question 9

Air is saturated when

Answer 9

it contains as much moisture as it can hold

Question 10

Ability to hold moisture depends on

Answer 10

the temperature

Question 11

the higher the temperature

Answer 11

the more moisture it can hold

Question 12

if the temperature falls below the dew point

Answer 12

condensation occurs

Question 13

A sling psychrometer

Answer 13

measures the dry bulb (air temperature) and the wet bulb temperature.

Question 14

Relative humidity-

Answer 14

is a percentage of saturation compared to the air.

Question 15

wind

Answer 15

is caused by heat flow in convection cells in the atmosphere and uneven heating of the Earth’s surface.

Question 16

High Pressure

Answer 16

cool air is more dense and sinks- ( good weather happy)

Question 17

Wind direction is named by

Answer 17

the direction it originates from

Question 18

Warm air is

Answer 18

less dense and rises leads to low pressure

Question 19

Wind blows fastest when

Answer 19

the air pressure gradient is the greatest (isobars of equal atmospheric pressure are closer together

Question 20

Low pressure

Answer 20

lousy weather (hot weather, wet, rises, less dense)

Question 21

Land Breeze-

Answer 21

• at night
• when the air moves from the land to the ocean
• causes the lower temperature air to move to the ocean, the higher temperature air to move to the land
• land has a higher pressure
  ocean has a lower pressure

Question 22

Sea Breeze-

Answer 22

• hot summer day
• land heats up more quickly than sea
• the low pressure is over the land
• high pressure is over the sea
• wind blows from sea to land.

Question 23

Coriolis Effect-

Answer 23

Earth’s rotation causes the path of wind to curve

Question 24

due to the Coriolis effect In the Northern Hemisphere the wind curve

Answer 24

is to the right

Question 25

due to the Coriolis effect In the Southern Hemisphere the wind curve

Answer 25

is to the left

Question 26

High Pressure (wind)-

Answer 26

wind blows outward- clockwise and anti cyclone

Question 27

low pressure (wind)-

Answer 27

wind blows inward- counter clockwise - cyclone

Question 28

Jet Streams-

Answer 28

Very fast wind currents that flow in the upper atmosphere that do not follow surface wind patterns

Question 29

jet streams blow from

Answer 29

west to east

Question 30

Weather-

Answer 30

is the short term condition in a specific location due to the uneven heating of the Earth’s surface

Question 31

Clouds form from

Answer 31

• warm air rises
• then it expands
• then it cools
• then it condenses
• condensation nuclei