Since Roger kind of raised the subject
DO01235 do? Not very good as a dataset, never mind, use data some rate. On automatic update system here anyway.
Over the past couple of years most of the daily sea ice data has been removed from public access leaving low grade stuff. How curious.
Drawing straight lines is not good when the data is plainly natural, nature does not do straight. Any of you have examples?
My guess is as good as any and the above is what a tool on automatic spat out, less finer twiddles.
The ripple is ~22 years a la solar magnetic and surface temperature. Exactly what causes this is of course unknown just the same as other non-experimental systems.
Why the shape? Is it sane? Oh yes.
How about turn it upside down and consider say a 10 year or so lag on global temperature, heat flows from the equator to poles.
Now lets turn to something surprisingly few seem to understand.
This plot will be wrong, is illustrative of how an apparent complicated pattern can arise from a trivial cause: two of the very simplest rotating vectors. Oh and these are the ones from the previous plot, all I did was change FS and the origin date.
This is just as valid as drawing straight lines.
The reader is left to read the annotation and figure it.
Note the subtractive from abt year 2000. Why a flat forms. Whether this is how it is cannot be known.
(I notice I’ve used the term mixing, contextually ambiguous, is used in the additive context, mixing is also used to mean a product)
Post by Tim