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Thursday, December 26, 2019


Hallo dear reader! So there's this thing called the World Magnetic Model (WMM), "a [data-based, mathematical representation] of the planet’s magnetic field that gives compasses dependable accuracy" (see) and is updated every five years.

Well, dear reader, the 2020 version of the WMM has just been released.

Given what it is, then, the World Magnetic Model shows where's at the North Magnetic Pole (aka Mr. NMP). This impalpable fella is indeed quite a walker as, since its formal discovery in 1831, it has already taken a 2250 kilometers (1400 miles) long stroll. Mr. NMP's been heading from Canada, westbound, toward Siberia, in Russia, at a pace that now is of about 40km a year (faster than the previous centuries, but slower than the 55km/year of the last two decades) (see).

Officially, the magnetic poles move (independently of each other) (see) 'cause the Earth's magnetic field is created, for its 95%, by the planet's moving, molten iron+nickel core (well, to be more specific, the inner core is solid, while the outer one is liquid and flows, and thus generates the geomagnetic field) (see).

But, ahah!, this dumb blog, dear reader, has another cartoon-explanation for that, and precisely for the NMP's expected future location, Siberia.
Oh, dear reader, before you go to the cartoon, a short but essential clarification: in this dumb blog's reality, Santa Claus lives in correspondence of the North Magnetic Pole, not at the North geographic Pole.

Santa Claus shouting at Rudolph the red nosed reindeer: The real reason why the North Magnetic Pole moves toward Siberia (by @sciencemug)
The real reason why the North Magnetic Pole moves toward Siberia (by @sciencemug)
[Free pic by Marcus Löfvenberg (source: Unsplash); adapted by @sciencemug]

Oh, dear reader, for your information, here you can find why it is important to update the WMM and to know exactly where the Magnetic North Pole be.

And, dear reader, for your information 2 - the return of the notions - the World Magnetic Model is released by the guys of the "National Centers for Environmental Information" (NCEI), in collaboration with the dudes of the "British Geological Survey" and those of the "Cooperative Institute for Research in Environmental Sciences" (CIRES).

The NCEI's is part of the "National Oceanic and Atmospheric Administration" (NOAA). The NCEI "hosts and provides access to one of the most significant archives on earth, with comprehensive oceanic, atmospheric, and geophysical data" (see), and it is a source of environmental information, "products and services to private industry and businesses, local to international governments, academia, as well as the general public" (see).  


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