noun
- a change in sea level that is uniform across the world's oceans, caused by factors such as melting ice sheets or changes in ocean basin volume
Usage: geology; oceanography
Examples
- Eustasy during the last ice age caused sea levels to drop by more than 100 meters.
- Scientists study eustasy to understand how global climate change affects coastal regions.
- The melting of polar ice caps contributes to positive eustasy, raising ocean levels worldwide.
- Eustasy differs from local sea-level changes caused by tectonic subsidence.
- Geologists use eustasy records to reconstruct past climate conditions.