Coastal Management

Which key word best describes "man made structures that are designed to reduce erosion"

• Hard engineering

• Soft engineering

Which key word best describes "natural strategies that are designed to reduce erosion"

• Hard engineering

• Soft engineering

Sort these coastal management strategies into hard and soft engineering.

Groups:

(a) Hard engineering

,

(b) Soft engineering

,

(c) Other

• gabions

• groynes

• sea wall

• managed retreat

• dune regeneration

• beach reprofiling

• beach nourishment

• rock armour / rip rap

What is beach reprofiling?

• Reshaping the beach profile to make it a little steeper to reduce wave power

• A method of increasing sand temperature to reduce wave power

• A technique for building sandcastles to reduce wave power

• A process of removing debris from the beach to reduce wave power

A sea wall is a ​ (a)   engineering strategy that is ​ (b)   . This means that it sends the wave back out to sea, this is called ​ (c)   and reduces ​ (d)   .

• hard
• soft
• curved
• straight
• wave refraction
• erosion
• deposition

Groynes are like ​ or ​ (a)   fences that trap sediment from ​ (b)   . This means that a beach builds up and it acts as a ​ (c)   , which means that erosion is ​ (d)   . However, places further along the coast will experience more ​ (e)   as there is less sediment to protect it.

• rock
• longshore drift
• buffer
• reduced
• erosion

What is beach nourishment?

• Adding sand to a beach to act as a buffer and reduce erosion.

• The process of removing sand from the beach to reduce erosion.

• A technique for building seawalls to reduce erosion.

• A method of planting trees along the shoreline to reduce erosion.

Label the coastal management strategies in the picture of Hornsea.

a

b

c

rock armour

groynes

sea wall

dune regeneration

gabions

What are the disadvantages of sea walls? Select all that apply.

• Expensive

• Doesn't reduce wave power

• Reduces erosion

• Unsightly (unattractive)

What is managed retreat?

• Doing nothing to the land and letting it erode

• Moving people away from the coast

• Carefully planning what buildings are near the coast

• Moving coastal management strategies to other places along the coast