Hello everybody.
I have one, you might say a peculiar interest, which I would want from my Premium subscription.
The free version archive only goes back to 2018, or just somehow someone decided that seven is a nice number, so let's put seven years there, or I can't really know.
The question is very simple. How far back does the archive go with Premium? Are there more model reanalyses available? Can one perform model climatology based on these reanalyses? Customisations? Like, for example, applying known corrective constants and functions to model forecast for defined weather station (I know, for example, that my daily highs are about 2,5°C higher than GFS daily highs in the summer, and 0,3°C in the winter. Or is the Premium just a posh version of the free thing, with no real applicability in actual scientific applications whatsoever?
I don't want to buy something I don't need. Please, help! 
