4 ms·

Here's a nifty visualization of magnetic pole location and strength from NOAA- https://maps.ngdc.noaa.gov/viewers/historical_declination/ https://maps.ngdc.noa

by kylek 7y ago

Here's a nifty visualization of magnetic pole location and strength from NOAA- https://maps.ngdc.noaa.gov/viewers/historical_declination/ https://maps.ngdc.noaa.gov/viewers/historical_declination/ edit: Some more on this stuff here (probably to be taken with a grain of salt, but neat no less)- https://magneticreversal.org/ https://magneticreversal.org/

cwmma 7y ago
I'm usually a Mercator apologist, but this is a really bad map to use that projection for
- jessaustin 7y ago
  In this case they want to preserve directions rather than e.g. area or distance, so Mercator is suitable. (You can click the tabs on the right side to see polar projections.)
roland35 7y ago
That is a great map! If you want the magnetic field for a particular location they have a calculator too! https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml
dawnerd 7y ago
Yeah that second site is run by people that believe in some pretty fringe stuff (electric universe, etc). Definitely take it with a grain of salt. Just look at their last two "Fast facts"