Trends in sea level, 1870-2006

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Trends in sea level, 1870-2006. Coastal and island tide-gauge data show that sea level rose by just under 20 cm between 1870 and 2001, with an average rise of 1.7 mm per year during the 20th century and with an increase in the rate of rise over this period. This is consistent with the geological data and the few long records of sea level from coastal tide gauges. From 1993 to the end of 2006, near-global measurements of sea level (between 65°N and 65°S) made by high precision satellite altimeters indicate global average sea level has been rising at 3.1 ± 0.4 mm per year.

Sources

Church, J.A. and White, N.J. (2006). A 20th century acceleration in global sea-level rise. Geophysical Research Letters, 33, L01602

Link to web-site

http://www.unep.org/geo/ice_snow

Cartographer/
Designer

Hugo Ahlenius, UNEP/GRID-Arendal

Appears in

Global Outlook for Ice and Snow

Published

June 2007

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