3.1.1.3 Weather Hazards

Question 1

what is global atmospheric circulation

Answer 1

movement of air across the planet which occurs in a specific pattern

Question 2

high-pressure system way to remember

Answer 2

happy weather

Question 3

low-pressure system way to remember

Answer 3

lashing down

Question 4

high-pressure features

Answer 4

cool air descends
reduces cloud formation
light wind and settled weather
air moves clockwise

Question 5

low-pressure features

Answer 5

hot air rises
the air evaporates and condenses to form cumulonimbus clouds
rain
air moves anti-clockwise

Question 6

ferrel cell

Answer 6

30-60

Question 7

hadley cell

Answer 7

0-30

Question 8

polar cell

Answer 8

60-90

Question 9

which directions do trade winds move

Answer 9

towards areas of low pressure/away from areas of high pressure

Question 10

how are low-pressure areas caused

Answer 10

air is rising from the ground so the weather is unsettled

Question 11

how are high-pressure areas caused

Answer 11

air is descending so the weather will be settled

Question 12

three names for tropical storms

Answer 12

cyclones, typhoons and hurricanes

Question 13

countries affected by a cyclone

Answer 13

india, madagascar, australie

Question 14

countries affected by a typhoon

Answer 14

japan, south-east asia, phillippines

Question 15

countries affected by a hurricane

Answer 15

carribean, usa

Question 16

where do hurricanes get their energy from

Answer 16

warm seas

Question 17

what temperature do seas need to be for hurricanes to develop

Answer 17

27+

Question 18

what degrees north of the equator do hurricanes form

Answer 18

8+20

Question 19

three areas of the tropical storm

Answer 19

eye, eye wall, banks of clouds

Question 20

eye conditions

Answer 20

small area in the middle of the storm
cool air sinks and warms up
no clouds
calm conditions

Question 21

eyewall conditions

Answer 21

tall bank of clouds

strong wind, heavy rain, thunder and lightning

Question 22

bank of cloud conditions

Answer 22

either side of the storm
banks of clouds with thunderstorms
strong gusty winds and heavy rain

Question 23

how do tropical storms form

Answer 23

strong upward movement of air draws water vapour up from the ocean
air condenses and releases heat which draws up more water
storm develops an eye where air descends rapidly
evaporated air cools as it rises to form thunderstorm clouds
several thunderstorms join together
when winds are 75mph+ it is a tropical storm
carried across the sea by prevailing winds

Question 24

monitoring +prediction advantages and disadvantages

Answer 24

warning to evacuate
technology is better so predictions are more accurate
not always accurate
future track is uncertain

Question 25

ways to monitor and predict

Answer 25

hurricane watch | hurricane warning

Question 26

protection advantages and disadvantages

Answer 26

reduces flood effects people feel safer expensive have to travel far to a cyclone centre

Question 27

ways to protect

Answer 27

storm drains sea walls to protect storm surges cyclone shelter houses on stilts

Question 28

planning advantages and disadvantages

Answer 28

people know how to respond responsibility is your own some people may not leave storm path may change

Question 29

ways to plan

Answer 29

bangladesh have early warning systems rural areas can be reached by bike messenger hurricane preparedness week

Question 30

weather definition

Answer 30

atmospheric conditions over a short period of time

Question 31

climate definition

Answer 31

average weather conditions over a long period of time

Question 32

examples of weather hazards

Answer 32

strong winds, thunderstorm, drought, heavy snow, prolonged rainfall

Question 33

prolonged rainfall

Answer 33

rainfall over a long period of time can lead to floods, common when snow melts

Question 34

thunderstorms

Answer 34

electrical storms with lightening strikes and/or torrential rainfall

Question 35

strong winds

Answer 35

can occur due to the remains of hurricanes in the Caribbean travelling over the Atlantic due to prevailing winds

Question 36

heavy snow

Answer 36

freezing temperatures lead to snow and ice cover, lowers visibility and makes roads dangerous