If you want a better answer than that, you will have to be more specific on what you are talking about. At least give me a reference.
I gave you more than enough information to make an honest statement. You clearly don't have it in you. No surprise...and no disappointment. It's easy to recognize a fundamentally dishonest person even over the internet and your weaseling on this was expected.
In measuring the level of a churning sea, averages is what it's all about.
And exactly how many levels of statistical averaging do you think raw data can pass through before the output becomes so far removed from the raw data from which it was created that it becomes useless?
Suppose you measured the distance from New York to Los Angeles with a ruler. How close do you think you might get? Now suppose you got 10 other people to do the same thing. They would surely come up with different answers...How much closer do you think the average of the ten of you would get to the actual distance? Would the average of a thousand people measuring the distance from New York to Los Angeles get you any closer to a measurement accurate to mm? Doubtful. Few people would argue that point and yet, in climate science, logic is tossed out the window.
Your graph shows sea level rising at about 3mm per year and yet TOPIX only "claims" an accuracy of +/- 4.7 centimeters. That is a 9.4 centimeter margin of error from the satellite and yet, climate science is claiming a 3 mm sea level rise per year with a margin of error of .4mm....a claim of accuracy roughly 23 times greater than the machine making the measurements is capable of. Go back to your measurements of from New York to Los Angeles....do you really believe you could have any number of people measure the distance and get a statistically more accurate measurement than you would get from the first 1000?....and just for fun, lets make your ruler off by 4.7 centimeters.
To make matters even worse, TOPIX only claims an accuracy of =/- 1.2 meters per pulse...so while you are measuring the distance from New York to LA...lets give you multiple rulers which are off by an unknown amount so that the margin of error for each ruler can be about 2.4 meters.
So again...how many levels of statistical averaging do you think raw data can pass through before you start getting numbers that are pure illusion. Do you really think you can get an accuracy of .4mm from a machine that claims 4.7mm as its high end of accuracy? Do you find it interesting the tide gages don't agree with the satellite measurements? Are you really foolish enough to believe that a rate of sea level increase can be computed to a margin of error of less than half a mm from a machine that "claims" a maximum accuracy of 4.7 centimeters and that from an average of 1000 pulses with a margin of error of +/- 1.2 METERS per pulse?
That sort of mathematical chicanery is typical of the climate science establishment and anyone who trusts them to tell the truth is an abject fool. And perhaps we can go into all the factors that could and probably do increase the margin of error such as ships...the effect of uneven sea beds on the surface...the effects of clouds...etc.etc.etc.
Suffice it to say that your claim of a sea level rise of 3 mm per year with a margin of error of .4 mm is Bullshit with a capital B.
The measurement of the very cold CMB involves using a radio telescope dish at a temperature hundreds of degrees warmer. The 2.7 degree K CMB then focuses on a detector at a liquid helium temperature of 4 degrees K. This is a definitive demonstration that radiation emanating from a source at 2.7 deg K not only can strike a much warmer focusing dish, but it can also reflect and strike a detector that is warmer.
Sorry guy...radio telescopes measure radio frequencies...they do not detect thermal radiation. Wish all you like but you will continue to be wrong. The 3k measurement of CMB is a mathematical artifact. If you want to actually measure CMB you will need an instrument that has been cooled to 2.75 K.