Soft engineering Make up lesson

soft engineeringmake-up lesson

lesson objectivesBy the end of the lesson, you will be able to:

lesson objectivesBy the end of the lesson, you will be able to:

so that you will be able to

how does this lesson work?1) Refer to your notes2) You are given the reaction or outcome for what’s relevant.3) The slides will tell you more about the coastal management strategies one at a time.4) You will be given more information about each strategy.

how does this lesson work?5) At the end of each strategy, you will need to look at your notes. and use the information you got from the slides.


6) If you are given the reaction,



Come up with your

own outcome



Come up with your

own outcome

7) If you are given the outcome



Come up with your

own outcome

7) If you are given the outcome

Come up with your

own reaction

6) If both the reaction and

outcome are not given

6) If both the reaction and

outcome are not given

decide if it should be cancelled

out.

ready?

1) Stabalising coastal dunes

what are coastal dunes?

these are coastal dunes- huge piles of sand at

the coast

how huge?

You see this group of people over here?

coastal dunes are formed naturally in some coasts

sea

coastal areas behind the

coastal dunecostal dune

sea

costal dunecoastal areas behind the

coastal dune

If a huge wave were to approach

the coast

sea

costal dunecoastal areas behind the

coastal dune

If a huge wave were to approach

the coast

What can coastal dunes do to the

thus people see the value of coastal dunes as a form of protection

They grow vegetation on it so that the roots can trap

the sand and stop the dunes from moving. Hence

stabilising the coastal dunes.

END OF COASTAL DUNES

deal with pg 22-23 of your notes.

2) Planting of mangroves

These are mangrove trees

What do you notice about its roots?

What do you notice about its roots?

What happens when waves pass through the

roots?

Banda Aceh, 2004, before tsunami

Mangrove Forest

Mangrove Forest

Mangrove Forest

Mangrove Forest

removed

Mangrove Forest removed

Banda Aceh, 2004, After the tsunami

Mangrove Forest

Mangrove Forest

Mangrove Forest

Mangrove Forest

removed

Mangrove Forest removed

END OF PLANTING OF MANGROVES


3) Beach NourishmentAdding of materials to make the beach bigger

original beach

original beach

Beach being nourishedto make it bigger

original beach

original beach

Beach being nourishedto make it bigger

Classic Example

Miami

Beach, USA

Miami

Beach, USA

1970sNo beach!

Miami

Beach, USA

1970sNo beach!

Hey there’s abeach

After beach nourishment,

END OF BEACH NOURISHMENT


4) Encouraging growth of coral reefs

What are coral reefs?

let’s go under the sea!

Corals : small living organismsCoral reefs :

Huge stone-like structures

created by corals for them to live

in

More coral reefs

How big are coral reefs

Coral Reefs

Coral Reefs

Coral Reefs

What did coral reefs do to the depth of the sea?

island before coral reefs

island

sea floor

sea

island after coral reefs

island

sea floor

seacoral reefscoral reefs

island after coral reefs

island

sea floor

seacoral reefscoral reefs

What will coral reefs do to a

wave approaching the

island?

Coral Reefs

you see what coral reefs does to the depth of the sea?

As you can see, coral reefs have a lot of benefits. So some countries tries to

encourage its growth.

Corals require a certain base to build reefs and start growing. So some engineers

encourage the growth of corals by adding structures onto the sea floors.

CoralsMetal Structure

Bricks

Even old ships are sunk to encourage the growth of corals! Railing for the front of

the ship

END OF ENCOURAGING THE GROWTH OF CORAL REEFSdeal with pg 28-29 of your notes.

END OF LESSON

Soft engineering Make up lesson

Technology

Transcript of Soft engineering Make up lesson