Satellite Measurements Sea Level Rise

If the sea level continues to rise in a linear fashion it seems that we may expect sea level rise of between 40 and 55 mm 1 6 2 2 in above present sea level in 2020.
Satellite measurements sea level rise. This article at cnn reports on a new study that calculates the acceleration of sea level rise that has become apparent in the record of satellite measurements which began in 1993. Sea levels are measured by a variety of methods that show close agreement sediment cores tidal gauges satellite measurements. Evidence for a predominant role of anthropogenic climate change in the observed global mean sea level rise and in the acceleration over recent decades has strengthened since the publication of the intergovernmental panel on climate change ipcc fifth assessment report. Between 1900 and 2016 the sea level rose by 16 21 cm 6 3 8 3 in.
Before adjustment the average rate of sea level rise since 1993 measured by the satellites was 3 2 0 3 millimeters per year. The adjustment drops that to about 2 6 0 4 millimeters per year. Bearing in mind that an average beach gradient is about 1 this translates into shorelines moving inward by 4 to 5 5 m 13 to 18 ft by 2020. New sea level satellite arrives at california launch site emissions could add 15 inches to sea level by 2100 nasa led study finds sea level mission will also act as a precision thermometer in space.
In 2019 global mean sea level was 3 4 inches 87 61 mm centimeters above the 1993 average the highest annual average in the satellite record 1993 present. Satellite altimetry measurements of sea level in the coastal zone october 2019 surveys in geophysics 40 6 1319 doi. The average rate of sea level rise over the period 1993 2018 when satellite measurements have been available has been around 3 3 mm year. Because the satellite record is so short this acceleration has not been clear until recently.
What they find is sea level rise has been steadily accelerating over the past century. From 2018 to 2019 global sea level rose 0 24 inches 6 1 millimeters.