Thanks for the data.
If that data is correct it means seas have risen 3.1 inches in 20 years (1995 - 2015) which is higher than I would have thought. In any event it will take a while for Miami to be significantly affected.
Sea levels began to rise 18k years ago at the end of the last glacial period. They have risen about 135 meters since then which is an average of 7.5 millimeters per year. That is an average of 750 mm per century (29.5 inches) which is far more than the average over the last century.
From 1880 to 2000 sea level rose about 20 cm or just under 8 inches. Far less than the nearly 30 inches per century average over the last 18,000 years.
It’s all BS. You can’t measure if the sea rises or not except in very macro results. One, it has waves. Two, it has tides. Three and most important, it sits on the earth’s crust, which essentially floats on the earth’s mantle.
So assuming your level of precision does not exceed your possible accuracy...is the sea “rising” because the ocean is filling with melt water? Or is the entire underlying structure in that area slightly sinking?
It’s a farce when anyone tells us they can measure the “rise” of the ocean in terms of a few millimeters. The entire system is too dynamic. The earth isn’t a billiard ball with a fixed surface.