Causes Of Sea Level Rise

Question 1

What is eustatic sea level chnage (3)

Answer 1

Rise or fall in sea level as a result of a change in the actual level of the water in the oceans
Example = temperatures increase water expands meaning that sea levels rise when sea temperatures are warmer
Global changes

Question 2

What is isostic sea level chnage (3(

Answer 2

Change in level of land relative to sea
Example = continents collide and fold mountains form = land forced to rise out of disease
Local + regional changes

Question 3

Evidence of sea level chnage since last glacial maximum (3(

Answer 3

18000 years ago
Sea levels were on average 110m below current level
Uk joined mainland Europe and Scandinavia by land bridge

Question 4

Sea level rise in past (4)

Answer 4

10000 years ago northern North Sea flooded and coast of Europe looked as does today
In just 500 years sea levels rose 500m
19th cent = 6cm
20 cent = 19cm

Question 5

Current sea levels

Answer 5

Rising at 3.2mm a year = largely due to thermal expansion