Floods

1
Floods
Done By Taina (Fatima) Ahmed Diana Zebib
2
Whats A Flood ?

• A flood is the submerging with water of a
  normally dry area. Floods are caused by many
  things, including rainstorms, slow water run-off,
  earthquakes, broken dams, underwater volcanic
  eruptions, or hurricanes.

3
What Time of The Year Does it take place?

• There's no way to predict when the next flood
  will come or how big it will be. However, past
  flooding gives some clues as to what to expect.

4
In which area of the world is it most common?
Floods are most common near water, downstream
from a dam, or in land that has a low elevation
Where is it least likely to occur? Floods are
least likely to take place in deserts as a result
of low precipitation.
5
Events in Canada

• Chester-1909
• New Brunswick mild weather caused ice to travel
  and possibly jam, creating floods which caused
  expensive damage to highway bridges and roads
• Quebec-1970
• Quebec the year of 1970 was marked by two
  exceptional floods causing approximately 2.3
  million in damage
• Newfoundland-1978
• Newfoundland floods caused 5.2 million in
  damages.

6
Recent Examples

• Detroit -2004
• The Incident was caused by the melting of winter
  snow resulting in overfilled river basins.

7
How Do Floods Cause Damage?
There are two main types of damage caused by
floods

• Plain water damage
• This damage basically soaks
• everything, sometimes it can dissolve
  foundations and make the ground unstable and
  muddy.

• Rushing water damage
• This damage is due to the water crashing into
  buildings, cars and other things, this is flood
  water that often kills people and animals.

8
How Floods Take Place

• Floods can take place any time of the year it
  depends on the location and it depends on the
  climate and the seasonal weather pattern.
• Flash floods often take place in the desert, when
  it rains in one place, and then the water starts
  to rush.

9
Factors of Weather that Interact to produce the
event

• Floods are caused by excess water from a few main
  sources
• rainstorms
• slow water run-off
• Ice melting
• Earthquakes
• underwater volcanic eruptions
• hurricanes

10
Other Facts

• Floods are the 1 weather related killer.
• Can take place anytime throughout the year.
• Flash floods take place with heavy rains.
• It only takes 2 feet of water to carry away most
  of todays automobiles.
• Floods mainly take place by rivers and lakes.

11
Droughts
12
Drought is?

• A drought is a prolonged, abnormally dry period
  when there is not enough water for users' normal
  needs
• Droughts are caused by lack of rain over a long
  period of time.

13
What Time Of The Year Does It Occur?

• Most droughts tend to occur during the
  , as the weather is hot and water is
  quickly evaporated.

14
Where do droughts occur?

• Droughts usually occur in hot dry areas of land.
  In most cases the area is dry because there is
  very minimal rainfall. The rain that does fall
  will be quickly absorbed into the ground or blown
  away by the dry air flow that moves along the
  ground.

15
Our Area

• During the past two centuries, at least 40 long
  duration droughts have occurred in western
  Canada. In southern regions of Alberta,
  Saskatchewan, and Manitoba, multi-year droughts
  were observed in the 1890s, 1930s, and 1980s.
• Droughts in eastern Canada are usually shorter,
  smaller in area, less frequent, and less intense
  nonetheless, some major droughts have occurred
  during the 20th century

16
Recent Examples

• Sustained drought conditions are impacting life
  in large parts of southern, southeastern, eastern
  and northern Ethiopia. Populations near Gode,
  Denan, Imi and south of Jijiga (all in
  southeastern Ethiopia's Somali Region) are
  presently experiencing the most severe
  conditions. Other affected areas include Oromiya,
  Dire/Yabello, South Omo and Konso (in the south
  and southwest of the country) and North and South
  Wollo (in the northern Amhara Region).

17
How Do droughts Cause Damage?

• Droughts can result in decreased crop yields,
  decreased drinking water quality and
  availability, and food shortages.

18
How Often It Takes Place

• Droughts often occur in West Africa, South
  Africa, Brazil, Australia, and India. Most of
  these areas are located between 15 and 20 degrees
  north and south latitude.

19
Pictures
20
ThE EnD..!