Chapter 1 Flashcards

1
Q

Middle Latitudes

A

Areas from 30 to 50 degrees

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2
Q

Middle-Latitude Cyclonic Storm

A

Extra tropical storms that form in mid latitudes. Tend to be larger than tropical cyclones

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3
Q

Low Pressure Air Flow

A

Counterclockwise towards the low

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4
Q

High Pressure Airflow

A

Clockwise away from the High

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5
Q

Mapping a Cold Front

A

Drawn in blue with arrowheads facing the direction the front is moving

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6
Q

Mapping a Warm Front

A

Drawn in red with half circles pointing towards the general direction of movement

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7
Q

Occluded Front

A

When a cold front catches up and overtakes a warm front

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8
Q

Mapping an Occluded Front

A

A purple line is drawn with alternating half moon and arrowheads

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9
Q

Mapping a Stationary Front

A

Alternating red half circles and blue arrows

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10
Q

Chinook Wind

A

Warm dry wind blowing down a mountain

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11
Q

Impacts of Chinook Winds

A

Can cause forest fires and dry crops

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12
Q

Average annual deaths due to heat exposure

A

300

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13
Q

Downburst

A

Strong downdrafts originating inside a thunderstorm

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14
Q

Top 5 Elements in the Atmosphere

A
  1. Nitrogen (78.08%)
  2. Oxygen (20.95%)
  3. Argon (0.93%)
  4. Neon (0.0018%)
  5. Helium (0.0005%)
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15
Q

Latent Heat

A

Heat released when water vapor condenses

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16
Q

Chemical Weathering

A

When rain and snow react with silicate materials in rocks to remove CO2 from the atmosphere

17
Q

Photochemical Smog

A

An irritant primarily composed of ozone that can cause eye and throat irritation

18
Q

Air Pressure

A

The amount of force exerted over an area of surface

19
Q

Measures of Pressure

A

Millibar (mb), Hectopascal (hPa), Inches of Mercury (Hg)

20
Q

Order of Atmosphere

A
  1. Troposphere
  2. Tropopause
  3. Stratosphere
  4. Stratopause
  5. Mesosphere
  6. Mesopause
  7. Thermosphere
21
Q

Temperature Change Troposphere

A

High moving low

22
Q

Temperature Change Stratosphere

A

Gradual increase

23
Q

Mesosphere

A

Decrease to lowest

24
Q

Thermosphere

A

Increase to warmest

25
Q

Lapse Rate

A

The rate at which temp decreases with height

26
Q

Standard Lapse Rate

A

6.5C for every 1000m or 3.6F for every 1000ft

27
Q

Temperature Inversion

A

When the temperature in the Troposphere increases with elevation

28
Q

Radiosonde

A

The instrument that measures the vertical profile of air temperature up to 100,000 feet

29
Q

Tropopause Characteristics

A
  1. Higher elevation at equator than poles
  2. Higher in summer than winter
  3. Can be broken by a jet stream
30
Q

Why does the temperature increase in the stratosphere?

A

Ozone absorbs the sunlight and heats the layer

31
Q

Why does the temperature increase in the thermosphere?

A

The minimal oxygen atoms absorb heat more quickly as they don’t share the wealth with so many atoms

32
Q

Homosphere

A

Areas where there stays 78% nitrogen and 21% oxygen because of constant mixing

33
Q

Heterosphere

A

The area beginning in the thermosphere where the lighter gases like helium float up and leave oxygen and nitrogen at the bottom

34
Q

Ionosphere

A

The area where there are more ions in the atmosphere. Begins at 60km