tropical storm hazards

Question 1

what is a hurricane

Answer 1

Atlantic Ocean

Question 2

typhoon

Answer 2

Northwest Pacific Ocean.

Question 3

cyclones

Answer 3

South Pacific Ocean and Indian Ocean.

Question 4

what is required for a tropical storm to form

Answer 4

-sea with temps over 27 degrees
-70m+ deep water
-location of 5 degrees north or south of the equator
-fuel
-coriolis

Question 5

how do storms form

Answer 5

incoming solar radiation causes surface heating. in an area of low pressure, air is heated over 27 degrees and deep 70m+ tropical oceans. converging winds are acted upon by the coriolis effect and incoming air spirals and accelerates around the depression. air rises and cools leading to condensation. latent heat is released which acts as feedback, fuelling further uplift

Question 6

structure of a hurricane

Answer 6

-donut shape
-in the northern hemisphere there is a spiral counter clockwise
-in southern hemisphere there is a clockwise spiral
-can be up to a few hundred mile diameter and 9 miles high

Question 7

what happens when a storm reaches land

Answer 7

there is less fuel for the storm as its not over water, so the storm begins to slow down

Question 8

what is a tropical storm

Answer 8

an intense low pressure weather system that develops in tropical areas

Question 9

where do storms occur

Answer 9

between 5 degrees and 20 degrees north and south of the equator

Question 10

how are storms measured

Answer 10

saffir simpson scale

Question 11

saffir simpson scale

Answer 11

this measures the scale of a tropical storm. measured in CAT 1-5.
5 is the largest with wind speeds over 155mph and 1 is the lowest with wind speeds of 74-95mph.
CAT 5 storms have the greatest damage and biggest storm surges.

Question 12

storm surge

Answer 12

is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems

Question 13

example of a HIC storm

Answer 13

hurricane katrina

Question 14

need to know about hurricane katrina

Answer 14

-gentilly vs uptown (low income area being more at risk and segregation)
-1836 deaths
-city is 50m below sea level
-8.5m storm surge
-cat 3
-120mph winds
-29th august 2005

Question 15

why was hurricane katrina so catastorophic

Answer 15

the city of new orleans lies 50m below sea level which made it vulenrable t the 8.5 storm surge which entered the city. the city flooded and many people drowned. along with this the area known as gentilly is very poor which left people vulenrable

Question 16

social impacts of hurricane katrina

Answer 16

1836 dead
homeless rates rise
looting and crime

Question 17

economic impacts of hurricane katrina

Answer 17

200 billion dollar damage
loss of jobs
loss of businesses

Question 18

political impacts of hurricane katrina

Answer 18

lack of response from govenment increased deaths which creates anger

Question 19

gentilly vs uptown

Answer 19

gentilly: low lying ground where population is 78% african american. price of housing here is 211,000 and 41% of households are single parent, little access to car

uptown: high lying ground where population is 73% white, price of housing here is 410,000 and only 8% of households here are single parent, access to cars

Question 20

responses to hurricane katrina

Answer 20

7.5m hot meals provided
1.3million invested to improve hurricane related broadcasting stations
7000 active duty officers sent
stadium opened to evacuate people

Question 21

preperation for hurricane katrina

Answer 21

evacuation plans and signs.
however buses were not provided in time and many people in new orleans dont own a car so could not evacuate

Question 22

mitigation after hurricane katrina

Answer 22

220miles of floodwalls and levees were replaced

Question 23

example of an nee storm

Answer 23

typhoon haiyan in phillipines

Question 24

need to know about typhoon haiyan

Answer 24

-cat 5
-GNI of $4700
-november 5 2013
-4m storm surge
-7500 deaths
-affected 9 million people

Question 25

why was typhoon haiyan so catastrophic

Answer 25

-poor country
-high poulation density
-phillipines consist of islands so there was an abundance of fuel for the storm
-lack of aid

Question 26

social impacts of haiyan

Answer 26

killed 7500 people
1.9million homless
affected 19 million
diseases

Question 27

economic impacts of haiyan

Answer 27

2.9 billion cost
5.9 million workers out of jobs
71,000 hectares of farmland lost

Question 28

political impacts of haiyan

Answer 28

huge pressure on government to speed up distribution of food and water
many of the city govenment workers were killed during disaster

Question 29

envrionmental impacts of haiyan

Answer 29

oil and sweage leaks into local ecosystems
high levels of pollution
loss of 70,000 hectares of farmland

Question 30

responses to haiyan

Answer 30

red cross sent out to help evacuate and provide resources
search and rescue teams sent out