Reanalysis provides further evidence of increasing rate of sea level rise

According to the IPCC AR5 “It is very likely that the mean rate of global averaged sea level rise was 1.7 mm/yr between 1901 and 2010 and 3.2 mm/yr between 1993 and 2010.”  But not all observations supported that the rate of sea level rise is increasing.  Altimetry measurements using the TOPEX/Poseidon satellite to measure the height of the sea surface using radar suggested that the rate of sea-level rise was remaining constant.  Now the source of the discrepancy between the earlier satellite measurements and later satellite measurements and tide gauge data has been identified and corrected for.  This reanalysis provides support for an increasing rate of sea level rise.  The new data suggests that the rate of sea-level rise increased from around 1.8 millimetres per year in 1993 to 3.9 millimetres per year today. The corrected results support the IPCC AR5 conclusion that the rate of sea-level rise is increasing.  Source: As-yet-unpublished analysis presented at the International WCRP/IOC Conference “Regional Sea Level Changes and Coastal Impacts” July 10-13 in New York.  Satellite snafu masked true sea-level rise for decades, Jeff Tollefson, Nature 17