sea level
US /ˈsiː ˌlev.əl/
UK /ˈsiː ˌlev.əl/

1.
Meeresspiegel
the average height of the sea's surface, used as a standard reference point for measuring altitudes and depths on Earth
:
•
Mount Everest is 8,848 meters above sea level.
Der Mount Everest liegt 8.848 Meter über dem Meeresspiegel.
•
Many coastal cities are threatened by rising sea levels.
Viele Küstenstädte sind durch steigende Meeresspiegel bedroht.