sea level change
Tidal datum shift
Sea level change is the rise or fall of ocean surface height over time, measured relative to land.
Changes result from thermal expansion of warming water, melting ice sheets, and geological processes.
Sea level change threatens coastal cities worldwide.
The term often appears in climate discussions, where rising seas pose risks to low-lying areas.
- glacial meltingWarming-induced ice loss
- polar ice lossDiminishing frozen polar regions
- floodingOverwhelming water accumulation
- coastal defensesFortifications protecting a shoreline
- coastal erosionLand loss at sea edges
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