Flat line = no acceleration of sea level rise from man made CO2 after 1940

The Manhattan Battery 

tide gage now has 

a co-located 

Continuous GPS 

Reference station

attached to the same structure, 

and NOAA CORS is tracking 

vertical land movement there 

— estimated for the 3.5 years 

of data available, at about 

minus 1.35 mm per year 

(downward vertical movement). 

That is 1/2 to 1/3 

of the total change 

in relative sea level 

at the site. 

The Battery is mounted 

to Manhattan’s bedrock, 

not a pier in mud, 

which makes it one of 

the steadier tide gauges.
(sorry I had previously
posted the Atlantic City,
New Jersey chart 
by accident -- 
I added the 
Manhattan chart
on February 4
-- not much
different, actually)

Manhattan 
... is below:

Source:
https://tidesandcurrents.noaa.gov/sltrends/sltrends_station.shtml?stnid=8518750
.
.
.
Atlantic City, NJ 
... is below: