... am having a heap of trouble trying to get the maps on the same projections. If you are an ace amd would care to help, get in touch please. 
The map above is of the changes in the strength of tthe vertical component of the geomagnetic field, at the planet's surface,.in the period 1889 - 1955 This is not the modelling of Jeremy B;lxham, for the core-mantle magnetic flux changes, but it does, to an extent reflect, those deeprer shifts. I will post the deeper shift map shortly.
The red patches on the map show where the vertical or z component of the geomagnetic field changed most. The southern hemisphere high-change region, at and mainly west of the Antarctic Peninsula, covers higher value changes than those in eastern Siberia and the Arctic Ocean. The termperature changes near the Antarctic Peninsula are also higher than the highest in the northern hemisphere.
When comparing this map to say GISS (Goddard Institute of Space Science) maps of secular (that is, time-based) temperature shifts, keep in mind that west of the Antarctic Peninsula there is a large area in the Southern Ocean of no data, on the GISS interactive maps. The contours just above that black (grey actually, on the GISS maps) hole suggest that there may well be a major extension of the zone of highest warmijng on the planet, in that direction. So the fi of temperature changes to the vertical magnetic flux shift map above may be better yet. You would think that such a data hole, in such a place, might raise some eyebrows and sspark ome effort on the part of the IPCC to get the hole plugged and the results considered, before instructing the entire human population to change its ways, but no dice yet, as far as I know.
When comparing maps, note that the one above is a slightly (to say the least) odd projection, that leaves off much of Antarctica and also that doubles up on some longitudes. It comes courtesy of the Encyclopaedia Britannica (1962) which in the 1870's whiich first published, as an article one of the seminal original papers on geomagnetism, and had kept up the interest.
I will post an appropriate GISS temperature change map next. I am still fishing for the best fit, by trying different time ranges.
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