Enquiry Question 3 Flashcards Preview

Geography - Coastal landscapes and change > Enquiry Question 3 > Flashcards

Flashcards in Enquiry Question 3 Deck (12)
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1
Q

Why are sea levels rising?

A

Ice caps and glaciers are melting,

Thermal expansion - as the sea heats up it expands and takes up more room.

2
Q

What happened to average temperatures and sea levels between 1880 and 2012?

A

Temperatures rose by 0.85*C and the sea levels rose by 20cm.

3
Q

What is eustatic sea level change?

A

When the sea level itself rises or falls.

4
Q

What is isostatic sea level change?

A

When the land rises or falls, relative to the sea.

5
Q

What is a raised beach?

A

Where the land has risen as a result of isostatic recovery and caused former shoreline platforms and their beaches were raised above the present sea level.

6
Q

What are fossil cliffs?

A

The remains of eroded cliff lines can be found behind the raised beach, with wave-cut notches and caves as evidence of past marine erosion.

7
Q

What is a ria?

A

Sheltered winding inlets with irregular shorelines from when valleys in a dissected upland are are flooded.

8
Q

What is a fjord?

A

When deep glacial troughs are flooded by a rise in sea level.

9
Q

What is a fjard?

A

A flooded inlet with a low rocky bank on either side formed by a past-glacial drowning of glaciated lowland rocky terrain.

10
Q

Holderness Coastline - Case Study

A

SEE EXERCISE BOOK

11
Q

What are some physical factors affecting coastal erosion/retreat?

A
Geology,
Marine processes,
Weakly consolidated rocks,
Sub-aerial processes,
Resistant rock,
Constant weathering.
12
Q

What are some human factors affecting coastal erosion/retreat?

A

Coastal defences,

Offshore dredging.