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.

Global sea level rose faster than expected. Visualize and access information and data relevant to understanding and planning for sea level rise in response to ongoing climate change. Visualize …

Sea level measurements, data, and interactive charts showing the increase in global sea level over time.

Sea level, position of the air-sea interface, to which all terrestrial elevations and submarine depths are referred. The sea level constantly changes at every locality with the changes in tides, …

Sea level continues to rise at a rate of about one-eighth of an inch per year. Higher sea levels mean that deadly and destructive storm surges push farther inland than they once did, which …

Jun 16, 2025 · Sea level is often perceived as a fixed horizontal line, but it is, in reality, a complex and dynamic surface representing the average height of the ocean’s surface between high …

May 30, 2025 · Sea level is the base level for measuring elevation and depth on Earth. Because the ocean is one continuous body of water, its surface tends to seek the same level throughout …