Rising sea levels are concerning. Sea levels rising at different rates? That’s very concerning.
As glacial melt, water continues to cause rising sea levels, monitoring areas at risk of flooding will become increasingly important.
It would be logical to think that sea levels would rise more or less uniformly in similar geographical areas, along the U.S. East Coast for example. The trouble is that as sea levels rise, coastlines in these areas may be simultaneously sinking. The new study, which examined sea-level trends along the U.S. East Coast between 1900 and 2017, pins responsibility for unexpected sea level rises on a phenomenon called “post-glacial rebound.”
Post-glacial rebound is a process which began during the last ice age when massive ice sheets covered inland areas, tightly compressing the Earth’s land and causing it to sink downward.
Because of this the outlying areas along the coast where pushed upwards over time, like a massive seesaw. It is definitely the most important process causing spatial differences in sea level rise on the U.S. East Coast over the last century.
The forces involved in post-glacial rebound play out on an epic time scale impossible for one person to witness, so don’t expect the ground to drop out from underneath you.
However, as sea levels continue to rise and the land continues to decompress, some coastal areas will become increasingly prone to coastal flooding.
Reference- Futurism, ScienceDaily