WOW!!! mamooth didnt call me a conspiracy theorist, for a change.
for the last year or so mamooth has been pushing the idea that because there is MORE warming in the totally uncorrected global temperature records than there is in the corrected global dataset, then it is impossible for any temperature corrections to be arbitrary or enacted for the purpose of making global warming predictions more feasible. usually he puts up a graph something like this
I have repeatedly asked him if he understands that ocean adjustments, and the bucket adjustment in particular, make up almost all of the pre 1940 upwards movement of the graph line, which indeed does lower the trend. mamooth has declined to debate the individual classes of adjustments and will only discuss the 'whole adjustment'. after pressing him for a time frame for when these adjustments were implimented he referenced Parker95, which I will accept. therefore the main adjustments were already in place since 1995.
What has happened since 1995? Unfortunately it was not understood until recently how earlier versions of global datasets would disappear as new ones appeared. publicly available maturity graphs (detailed records of changes made) only go back to 2008.
hahahaha. up until jun2015 the spread was much larger. I wonder if the jan1915 anomaly was singled out for special treatment?
it is obvious that tinkering with historical temperatures is an ongoing problem. and that the general movement is to cool the pre 1940 20th century data and warm the post 1975 data.
I have already shown in previous posts here how the climate model hindcasts would look totally pathetic without the bucket adjustments. was that the reason for the adjustment? good grief, I certainly hope not! I am sure that it is a reasonable correction, albeit one with large error range that can be 'pushed' a considerable distance either way if the need arises.
