NASA Sea Level Change Portal
WEBUnderstanding 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. Sea …
Sea Level - National Geographic Society
WEBOct 19, 2023 · Vocabulary. 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.
NASA Analysis Sees Spike in 2023 Global Sea Level Due to El Niño
WEBMar 21, 2024 · Global average sea level rose by about 0.3 inches (0.76 centimeters) from 2022 to 2023, a relatively large jump due mostly to a warming climate and the development of a strong El Niño. The total rise is equivalent to draining a quarter of Lake Superior into the ocean over the course of a year.
Sea level - Wikipedia
WEBThe term APSL means above present sea level, comparing sea levels in the past with the level today. Earth's radius at sea level is 6,378.137 km (3,963.191 mi) at the equator. It is 6,356.752 km (3,949.903 mi) at the poles and 6,371.001 km (3,958.756 mi) on average. [4]
Sea Level - Climate Change: Vital Signs of the Planet
WEBSea 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. The first graph tracks the change in global sea level since 1993, as observed by satellites.
Understanding Sea Level | NASA Sea Level Change
WEBChart 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.
Overview | Global Sea Level – NASA Sea Level Change Portal
WEBGlobal mean sea level provides an integrative measure of the state of the climate system, encompassing both the ocean and cryosphere (ice covered portions of Earth), and it can be viewed as an important indicator of what is happening to the climate in the present and what may happen in the future.
Sea level rise, facts and information - National Geographic
WEBApr 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 is...
Climate Change: Global Sea Level | NOAA Climate.gov
WEBPublished April 19, 2022. Global average sea level has risen 8–9 inches (21–24 centimeters) since 1880. In 2022, global average sea level set a new record high—101.2 mm (4 inches) above 1993 levels.
Is sea level rising? - NOAA's National Ocean Service
WEBFacts. Is sea level rising? Yes, sea level is rising at an increasing rate. With continued ocean and atmospheric warming, sea levels will likely rise for many centuries at rates higher than that of the current century.
Skip to content