The University of Colorado used to have this error map on their sea level web site, which showed that most of their fake 3 mm/year sea level rise is due to error.
The url for this map was http://sealevel.colorado.edu/files/current/sl_err_sm.jpg
Here is their current sea level map. Note that their data is severely skewed by a region north of Australia, where their error is almost as great as their claimed trend.
The global satellite sea level graphs claiming 3 mm/year are complete bullshit, and would be thrown out of any engineering project. But this is government science and the government needs some basis to claim that sea level rise rates have increased.