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A reconciled estimate of 20th century global mean sea level rise

A reconciled estimate of 20th century global mean sea level rise

Due to its close linkage to changes in ocean heat content and melting land ice, global mean sea level (GMSL) is one of the key climate change indicators. While the modern observing system of altimetric satellites,ARGO floats (providing temperature and salinitymeasurements for the top 2000 m), and the Gravity Recovery and Climate Experiment (GRACE) (providing mass changes in the ocean and over the continents) provides global coverage of the spatially and temporally highly variable mean sea level (MSL) and its components, before 1992 the estimation of GMSL changes relies on a sparse set of tide gauges situated along the coast of the continental margins. Reconstructing GMSL from these tide gauges is a challenging task for a number ofdifferent reasons: Tide gauges measure sea level relative to... Show More
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