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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.
Learn how NASA monitors and studies sea level rise and its causes from space and on the ground. Access climate tools, analysis tools, data and news related to sea level change and its impacts.
Explore the global and local sea level projections from the IPCC 6th Assessment Report. Adjust the map and data settings to view the data summary or select a gauge for more details.
Since 1993, global mean sea level has increased by 3.4 ± 0.3 mm/year [5]. This amounts to a total increase of 10.3 cm over the past 30 years. About 30% of this rise can be attributed to ocean thermal expansion [6], 60% is due to land ice melt from glaciers and from the Antarctic and Greenland Ice Sheets. The remaining 10% is caused by changes ...
19. Apr. 2022 · Learn how global warming is causing sea level to rise and how it affects coastal communities and ecosystems. See maps, graphs, and projections of sea level change and flooding frequency across the U.S.
10. Apr. 2023 · Learn how climate change is accelerating the rise in sea levels around the world, threatening coastal habitats and communities. Find out what scientists know and what they are doing to prepare for the future.
Learn how global mean sea level (GMSL) is influenced by ice melt, thermal expansion and land water storage. See how satellite altimeters, GRACE/GRACE-FO and Argo measure and compare GMSL changes.
