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Service Description: Sea level is rising as a result of ocean heating and land ice -mass loss. Water expands when heated and about 30% of contemporary global mean sea level rise can be attributed to this thermal expansion alone. Sea level rise can seriously affect human populations in coastal and island regions as well as natural environments such as marine ecosystems. The time series shows that the average global sea level has risen by more than 8 cm since the early 1990’s and it continues to rise at a rate of 3.3 mm each year. New calculations reveal that global mean sea level rise is accelerating, with this rate increasing by 0.12 ± 0.073 mm each year. Sea levels do not rise homogeneously and thus some regions are more threatened than others. The map shows the spatial distribution of sea level trends since 1993. It reveals that sea level is rising for the vast majority of the global ocean but there is large-scale variation with regions like the western tropical Pacific Ocean reaching amplitudes of up to +8 mm/year. In this area, the regional trends are mainly due to thermal expansion. The regional sea level trend uncertainty is on the order of 2-3 mm/year with values as low as 0.5 mm/year or as high as 5.0 mm/year depending on the region. This sea level ocean monitoring indicator is derived from the DUACS delayed-time (DT-2018 version). These products are distributed by the Copernicus Climate Change Service and also available in the Copernicus Marine Service catalogue.

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Description: Sea level is rising as a result of ocean heating and land ice -mass loss. Water expands when heated and about 30% of contemporary global mean sea level rise can be attributed to this thermal expansion alone. Sea level rise can seriously affect human populations in coastal and island regions as well as natural environments such as marine ecosystems. The time series shows that the average global sea level has risen by more than 8 cm since the early 1990’s and it continues to rise at a rate of 3.3 mm each year. New calculations reveal that global mean sea level rise is accelerating, with this rate increasing by 0.12 ± 0.073 mm each year. Sea levels do not rise homogeneously and thus some regions are more threatened than others. The map shows the spatial distribution of sea level trends since 1993. It reveals that sea level is rising for the vast majority of the global ocean but there is large-scale variation with regions like the western tropical Pacific Ocean reaching amplitudes of up to +8 mm/year. In this area, the regional trends are mainly due to thermal expansion. The regional sea level trend uncertainty is on the order of 2-3 mm/year with values as low as 0.5 mm/year or as high as 5.0 mm/year depending on the region. This sea level ocean monitoring indicator is derived from the DUACS delayed-time (DT-2018 version). These products are distributed by the Copernicus Climate Change Service and also available in the Copernicus Marine Service catalogue.

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Document Info:

Title: Global mean sea level regional trend
Author:
Comments: Sea level is rising as a result of ocean heating and land ice -mass loss. Water expands when heated and about 30% of contemporary global mean sea level rise can be attributed to this thermal expansion alone. Sea level rise can seriously affect human populations in coastal and island regions as well as natural environments such as marine ecosystems. The time series shows that the average global sea level has risen by more than 8 cm since the early 1990’s and it continues to rise at a rate of 3.3 mm each year. New calculations reveal that global mean sea level rise is accelerating, with this rate increasing by 0.12 ± 0.073 mm each year. Sea levels do not rise homogeneously and thus some regions are more threatened than others. The map shows the spatial distribution of sea level trends since 1993. It reveals that sea level is rising for the vast majority of the global ocean but there is large-scale variation with regions like the western tropical Pacific Ocean reaching amplitudes of up to +8 mm/year. In this area, the regional trends are mainly due to thermal expansion. The regional sea level trend uncertainty is on the order of 2-3 mm/year with values as low as 0.5 mm/year or as high as 5.0 mm/year depending on the region. This sea level ocean monitoring indicator is derived from the DUACS delayed-time (DT-2018 version). These products are distributed by the Copernicus Climate Change Service and also available in the Copernicus Marine Service catalogue.
Subject: Global mean sea level regional trend
Category:
Keywords: mean,sea level,trend
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