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.

Aug 22, 2023 · Global mean sea level has risen about 8–9 inches (21–24 centimeters) since 1880. The rising water level is mostly due to a combination of melt water from glaciers and ice sheets and …

NASA keeps track of sea level change and its causes from space. Find out more about how NASA satellite observations help our understanding of this complex topic.

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 also means more …

An interactive sea level map with the latest data on past, present, and future sea level rise for every coastal location. Explore IPCC AR6‑based sea level rise projections, satellite and tide gauge …

Sealevelmap.io is an interactive map exploring global sea level fluctuations spanning the past 135,000 years. Batchelor, C.L., Margold, M., Krapp, M. et al. The configuration of Northern Hemisphere ice …

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, atmospheric …

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 the world.

See how Global sea levels have changed over the past 800,000 years with this fully interactive global sea levels graph featuring the most recent & historical sea level data and global temperatures.

This site was designed to help you find the height above sea level of your current location, or any point on Earth. When viewed from a phone that supports altitude readings, the reading will come directly …