Weather and Climate: Ch. 8

Question 1

Large body of air

Answer 1

Air Masses

Question 2

Uniform conditions of air masses

Answer 2

• Temp
• Moisture
• Stability

Question 3

Air masses are _____ miles or more across

Answer 3

1000

Question 4

Where air mass originates

Answer 4

Source region

Question 5

Source region of air masses

Answer 5

• Usually flat and uniform
• Light surface winds

Question 6

Classification based on temp and humidity:

Answer 6

P = polar (cold)
T = tropical (warm)
A = Arctic
m = maritime (water)
c = continental (land)

Question 7

cP

Answer 7

Continental Polar

Question 8

Source of Continental Polar

Answer 8

Norther interior of Canada and Alaska

Question 9

Characteristics of Continental Polar

Answer 9

cool, dry, stable

Question 10

Winter in Continental Polar

Answer 10

bitterly cold, dry

Question 11

Summer in Continental Polar

Answer 11

mild, pleasant

Question 12

Continental Polar has no _________ barriers to restrain it

Answer 12

topographic

Question 13

Air mass modified by land surface it travels over

Answer 13

Continental Polar (cP)

Question 14

Source of Continental Arctic

Answer 14

Frozen Ocean and Greenland

Question 15

cA

Answer 15

Continental Arctic

Question 16

Characteristics of Continental Arctic

Answer 16

exceptionally cold, dry

Question 17

Responsible for winter cold waves in Great Plains

Answer 17

Continental Arctic (cA)

Question 18

Snowstorm form downwind of Great Lakes

Answer 18

Lake-Effect Snow

Question 19

When is Lake-Effect Snow?

Answer 19

autumn and early winter

Question 20

What happens in Lake-Effect Snow?

Answer 20

• Cold air moves over warmer lakes
• Water vapor absorbed
• Snow on edge of lake

Question 21

mP

Answer 21

Maritime Polar

Question 22

Source of Maritime Polar

Answer 22

North Pacific and North Atlantic

Question 23

Characteristics of Maritime Polar

Answer 23

cool, moist

Question 24

mT

Answer 24

Maritime Tropical

Question 25

Source of Maritime Tropical

Answer 25

Gulf of Mexico, Caribbean, SE Pacific

Question 26

Characteristics of Maritime Tropical

Answer 26

warm, humid

Question 27

Oppressive summer heat and humidity east of Rocky Mountains

Answer 27

Maritime Tropical (mT)

Question 28

Primary source of precipitation in eastern 2/3 of U.S.

Answer 28

Maritime Tropical (mT)

Question 29

Source of Continental Tropical (cT)

Answer 29

Deserts of Mexico and SW U.S. in summer

Question 30

Characteristics of Continental Tropical

Answer 30

Hot, dry

Question 31

cT

Answer 31

Continental Tropical