sea level change isostatic change

Question 1

when does isostatic change occur?

Answer 1

when the land rises or falls relative to sea and is a localised change

Question 2

local or global (everywhere)?

Answer 2

localised

Question 3

what is isostatic change often a result of?

Answer 3

isostatic subsidence

Question 4

what is glacial subsidence?

Answer 4

when glaciers weigh down the land beneath so the land on the other side is raised

Question 5

what happens when the glacier melts during isostatic subsidence?

Answer 5

isostatic recovery so the land levels out

Question 6

what else other than isostatic subsidence causes isostatic change?

Answer 6

tectonic activity (earthquakes and volcanic eruptions) as this can also cause land subsidence therefore isostatic sea level change

Question 7

what is an example of tectonic activity causing land subsidence?

Answer 7

This was seen in the 2004 Indian Ocean earthquake, which caused the city of Bandeh Aceh to sink permanently by 0.5m