Total sea level change since 1993

Units: Sea level trends (mm/yr)

One of the most significant potential impacts of climate change is sea level rise that may cause inundation of coastal areas and islands, shoreline erosion, and destruction of important ecosystems such as wetlands and mangroves. As global temperatures increase, sea level rises due to a thermal expansion of upper layers of the ocean and melting of glaciers and ice sheets. The measurement of long-term changes in global mean sea level can provide an important corroboration of predictions by climate models of global warming. Satellite altimeter radar measurements can be combined with precisely known spacecraft orbits to measure sea level on a global basis with unprecedented accuracy. A series of satellite missions that started with TOPEX/Poseidon (T/P) in 1992 and continued with Jason-1 (2001–2013) and Jason-2 (2008–present) estimate global mean sea level every 10 days with an uncertainty of 3–4 mm.

Source: altimetry data are provided by the NOAA Laboratory for Satellite Altimetry.

Data and Resources

This dataset has no data

Additional Info

Field Value
Source https://app.mapx.org/static.html?views=MX-G56VP-YMBL0-DU7VM&zoomToViews=true#JAAc6
Author UNEP/GRID-Geneva
Maintainer UNEP/GRID-Geneva
Last Updated December 7, 2022, 08:15 (UTC)
Created December 7, 2022, 08:15 (UTC)
GUID MX-G56VP-YMBL0-DU7VM
Issued 2018-12-21 18:58:15
Language EN
Modified 2022-01-28 17:14:04
Publisher email info@mapx.org
Publisher name UNEP/GRID-Geneva
Theme Web Map
data_type geospatial
keywords_m49 WLD
projects_description World Environment Situation Room: Climate
projects_id MX-5Z8-45E-K4I-SKH-75H
projects_title WESR: Climate
range_end_at_year 2022
range_start_at_year 2018
source_abstract Units: Sea level trends (mm/yr) One of the most significant potential impacts of climate change is sea level rise that may cause inundation of coastal areas and islands, shoreline erosion, and destruction of important ecosystems such as wetlands and mangroves. As global temperatures increase, sea level rises due to a thermal expansion of upper layers of the ocean and melting of glaciers and ice sheets. The measurement of long-term changes in global mean sea level can provide an important corroboration of predictions by climate models of global warming. Satellite altimeter radar measurements can be combined with precisely known spacecraft orbits to measure sea level on a global basis with unprecedented accuracy. A series of satellite missions that started with TOPEX/Poseidon (T/P) in 1992 and continued with Jason-1 (2001–2013) and Jason-2 (2008–present) estimate global mean sea level every 10 days with an uncertainty of 3–4 mm. Source: altimetry data are provided by the NOAA Laboratory for Satellite Altimetry.
source_title Total sea level change since 1993
spatial WLD