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What does sea level mean?
How is sea level measured?
How high is the current sea level?
What is a mean sea level standard?
Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured.
- Past Sea Level
The current sea level is about 130 metres higher than the...
- Sea level rise
The global average sea level has risen about 250 millimetres...
- Past Sea Level
Sea level is generally used to refer to mean sea level (MSL). This is the average level for the surface of one or more of Earth's oceans. MSL is a type of standardised geodetic reference point. It is used, for example, as a geodetic datum in cartography and marine navigation.
Oct 19, 2023 · Learn about sea level, the base level for measuring elevation and depth on Earth. Find out how sea level varies with climate, glaciers, and land movement, and how it is measured using the Metonic cycle and local mean sea level. Discover the highest and lowest places on Earth, and the effects of sea-level rise on low-lying areas.
Apr 10, 2023 · EXPLAINER. Sea levels are rising at an extraordinary pace. Here's what to know. Seas are predicted to rise a foot by 2050, regardless of how much global carbon emissions can be reduced. Why...
Apr 11, 2024 · Apr. 11, 2024, 1:57 AM ET (Newsweek) US Map Shows How States May Be Submerged by Rising Sea Levels in 2100. How do satellites help measure sea levels? Learn how sea level is measured. See all videos for this article. sea level, position of the air-sea interface, to which all terrestrial elevations and submarine depths are referred.
