4. Floods
• explain the connections between physical
processes, the landscapes they create and the
resulting hazards
• explain the concept of spatial significance as it
relates to natural hazards and disasters
• apply Geographic Perspectives to natural hazards
and disasters.
5. • Understanding how and where flooding occurs
as well as what changes they make to the
landscape can help us manage risks
accordingly
Floods
6. ✔I can accurately describe different types of landscapes;
✔I can accurately describe different types of physical processes;
✔I can logically explain the connections between physical
processes and natural hazards;
✔I can accurately describe how processes and hazards
influence landscapes;
✔I can analyse the connections between different types of
processes/hazards and how they influence each other.
Floods
7. ✔I can accurately identify a location’s natural and human
characteristics and relate them to natural hazards and
disasters;
✔I can interpret the significance of natural and human
characteristics to explain how they affect the risk of hazards
and disasters;
✔I can make relevant connections between the importance of
spatial distribution and human/natural features.
Floods
8. ✔I can accurately identify a point of view from an
environmental, social, political and economic perspective;
✔I can explain the characteristics of geographic perspectives
using appropriate support;
✔I can logically compare various geographic perspectives
relevant to the natural hazard and disasters;
✔I can appropriately analyse multiple perspectives related to
natural hazards/disasters.
Floods
9. • Flooding 101
• https://www.youtube.com/watch?v=4PXj7bOD7I
Y
Floods
10. • Flooding events are the most frequent and
costly natural hazards that humans
encounter.
• At any given time, there are numerous locations
on Earth experiencing flooding as a result of
heavy precipitation, hurricane storm surges, or
even tsunamis triggered by geologic events.
• Flooding in Canada is becoming such a
problem, that huge areas are no longer
insurable against flooding.
Floods
12. • Where are flood events occurring? Are there
patterns or trends in their occurrence?
• What natural events are causing the flooding in
these places? What features create the unique
spatial significance?
• How is the flooding affecting people? How are
people affecting the flooding? What
interrelationships exist?
• How would you feel if this were happening in your
community? What geographic perspectives exist?
Floods
13. • Flooding is most often a natural process that
occurs anywhere an excess of water
accumulates.
• However, floods can also have human origins.
For instance, human activities, such as dams,
create controlled flooding situations.
Floods
14. • However, the most dangerous floods are
created by natural and unpredictable
circumstances.
• There are no complexities involved other than
identifying the source of the excess water.
• Floodwaters can be created as a result of a few
situations, each with their own unique spatial
significance.
Floods
15. Floods
• Part 1: Causes of Flooding
• Take notes on the various causes of flooding as
you look at the infographic, read the handout,
and look at the photos on the next few slides.
23. • Part 2: Influence of Water and Flooding on
the Landscape
Floods
24. Floods
• In the first lesson of this unit, you learned that
earthquakes and plate tectonics are able to
create towering mountain ranges or deep ocean
trenches over the course of millions of years.
• The long term erosive actions of water also
create magnificent landscapes, sometimes over
the course of only a few years.
• The power of water is no better seen than by
looking at a few of the landscapes it has created.
34. Uxbridge Culvert c. 2018
• This was the state of the culvert in 2018.
• It could only hold a “1 in 100 year” flood event.
• Hurricane Hazel was TEN TIMES that amount!
• If a regional flood were to occur, 2 metres of water
would flow through downtown.
37. Uxbridge Culvert
• This construction project removed the previous
culvert that ran under Downtown Uxbridge and
replaced it with a pair of concrete culverts.
40. Floods
• Now that we understand the causes of floods
and some terms and landforms associated with
them, we will use the concept of geographic
perspectives to study a famous Canadian flood.
• Start by looking at the satellite imagery of the
flood from before and during this event.
44. Floods
• Explore the story map (link on the next
slide) and complete the Calgary Flood
Case Study.
• The activity requires you to think from
the perspective of someone else,
which is sometimes hard to do.
• For some tips on how to think from
someone else's perspective read the
article “Empathetic Intelligence”.
Activity
45. Floods
• Geographic Perspectives on a Canadian natural
disaster: Complete the handout as you explore
the story map.
• http://onedu.maps.arcgis.com/apps/Cascade/ind
ex.html?appid=112535f7a0184ca89cbc7586928
c01c9
46. Floods
ArcGIS Story Map not working?
1. Use the “How to Login to ArcGIS
Online” to get it working. Or if
THAT doesn’t work...
2. Use the “Calgary Flood Case
Study Story Map” slideshow that
is a collection of screenshots of
the real Story Map.
47. Floods
• The Calgary Zoo was hit hard by
the flood, as it is located on the
river bank and a small island within
the river.
• Knowing this information is
important. However, to better
understand the flood’s impact on all
people (and animals) connected to
the zoo, you read the article Flood
at the Zoo: The Inside Story.
48. Floods
• Once you have read this article,
imagine the information that other
individuals and stakeholders would
find most important and significant
based on their perspective.
• Complete the Flood at the Zoo
Chart as a way of organizing
information from the article. Submit
your completed chart.
Activity
