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Understanding Sea Level. 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. Global Sea Level. Regional Sea Level. Explore the main causes: ice melt and heat-driven expansion of ocean water. Learn more about Global Sea Level.
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.
19 de oct. de 2023 · 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. However, winds, currents, river discharges, and variations in gravity and temperature prevent the sea surface from being truly level.
Global sea levels are rising as a result of human-caused global warming, with recent rates being unprecedented over the past 2,500-plus years. Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers, and the expansion of seawater as it warms.
Key Indicators. Chart the changes in Earth’s water and ice that most clearly reveal global sea level rise. Learn more about the different causes of sea level change and the scientific background of observations and projecting sea level.
The NASA Sea Level Projection Tool allows users to visualize and download the sea level projection data from the IPCC 6th Assessment Report (AR6). The goal of this tool is to provide easy and improved access and visualization to the consensus projections found in the report.
10 de abr. de 2023 · ENVIRONMENT. 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...
