Discussion on the Bishop’s blog could useful use plots of UAH lower troposphere data and since I can do this, two plots follow.
Both the following are rotated to roughly match the plots cited in the other blog.
Actually used, looks like 90,30 which is 30 degree clockwise, plot range +-4C, disc is for whole earth equal area:
lua query.lua uahtlt render year=2010 month=10 centre=90,30 size=1024,768 range=4 lamaz
This was all done quickly and I couldn’t remember how to do it! No doubt could be improved.
I am not looking for comments here.
Further work on the satellite global monthly both RSS and UAH produces
This is the most accurate I can do at the moment.
A discovery was a time offset for the residual annual cycle and harmonics for both datasets, an unexpected and strange effect. Why? It ought to be centred on exactly one year.
I am nervous about allowing for this without knowing what is going on. Perhaps it is an artefact of the quantised satellite orbit mismatching orbital period. (is about 0.97 year instead of 1)
I’ve used datasets computed here from gridded because this avoids the Shannon limitation in the published data. (doubt it makes a material difference)
Data, intermediates, full explanations, ask.