Difference Between True North and Magnetic North

Difference Between True and Magnetic North. Graph at the end of the vid

[@snsnplpl]

I know a guy who decided to hike across Iceland from Akureryi to Hofn. When he got to the interior, which is barren wasteland, he found out his compass was not helping him find the spots that he had picked to get water. Apparently, when there is a lava flow 'the magnetism of iron-rich minerals in molten lava orients along the prevailing field, then becomes locked into place as the lava cools and hardens.' (science daily 9-26-2008). Considering Iceland is being formed by lava flows as the tectonic plates there pull apart, there are many layers of lava flows with different magnetic fields. He barely made it across and came out severely dehydrated.

[@G.O.Bushcraft]

Thank you for this insight!

[@SysterEuropa]

Excellent video Doyle. Superb technique to get the point across quickly.

[@G.O.Bushcraft]

Many thanks!

[@user-pk8oi9jj1v]

Excellent information. Good to know

[@G.O.Bushcraft]

Glad it was helpful!

[@paramaniacwolverine843]

Old topographical maps used to have a small marker on the side that you put your compass on and a calculation to find true north or magnetic north according to the year post printing of the chart. It was not static. I've forgotten all that information, so now, thanks to this video I will have to go scratch out a map and see if I can still work it out.

[@Nashvillain10SE]

It's called a declination diagram

[@G.O.Bushcraft]

The US Army maps still have the declination but they're changing them yearly due to the travelling magnetic north. I heard an astronomer say that all the planets in our solar system are experiencing the same phenomena. Thank you.

[@paramaniacwolverine843]

@@Nashvillain10SE thanks, I haven't done mapwork since the mid 1980s.

[@AlpineWarrior550]

This topic is very interesting because of the way that these things are constantly changing…. Having said that, one should have various ways to navigate. Along with knowledge and practiced skills……. This is why your videos are very interesting and useful…..‼️👍🏻

[@G.O.Bushcraft]

Thank you much Warrior.

[@pathfinderdude]

Great Video Doyle

[@G.O.Bushcraft]

Glad you enjoyed it

[@AlpineWarrior550]

Absolutely 👍🏻

[@G.O.Bushcraft]

There is a recent development in this topic.

[@johnrobinson4736]

Great video Doyle! Keep it up.

[@G.O.Bushcraft]

Thank you sir!

[@AlpineWarrior550]

Awesome job my friend……. FYI THE GM angle is different in a lot of areas…

[@G.O.Bushcraft]

It's 30 degrees off in some places and getting wider. Mag north is now close to Russia.

[@andrewandres148]

@@G.O.Bushcraft And it changes...... Many feel we are due for a magnetic pole shift..... It Happens every 6000 years or so........

[@G.O.Bushcraft]

Please check out Maverickstarreloaded and Suspicious0bservers channels on youtube. Both channels have compiled a HUGE volume of facts on the pole shift/ excursion. If we only experience a slip then we may survives this thing but who knows.

[@AlpineWarrior550]

@@G.O.Bushcraft interesting my friend, thanks for the info…👍🏻

[@andrewandres148]

@@G.O.Bushcraft Yes, I keep up with Solar reports from Suspicious0bservers...

[@steveanimatrix3887]

We're also currently experiencing a magnetic pole shift.

[@G.O.Bushcraft]

Correct Stevean. The magnetic pole shift started around 1982 now it's in full swing.

[@Tjalve70]

A magnetic pole shift takes thousands of years to complete. And you could say that Earth is constantly experiencing a magnetic pole shift, depending on what you mean by that.

[@G.O.Bushcraft]

@@Tjalve70 I'll leave that conclusion to the experts which I am not. suspicious0bservers and maverickstarreloaded have compiled volumes on this topic.

[@zafnor]

I always thought that the north star was not true north and that the north star was moving. Isn't there a better way to locate true north?

[@chrisruthford4492]

It's actually the earth that wobbles, not the north star.

[@G.O.Bushcraft]

You can easily do it yourself. Let me know what declination you find.

[@zafnor]

@@chrisruthford4492 yes, i realize that. my point being that I believe that the star is not true north.

[@chrisruthford4492]

@@zafnor Polaris is exactly true north it varies less than a degree. Magnetic north is almost 12° from Polaris.

[@bpurkapi]

and this is why we have gps

[@G.O.Bushcraft]

True. GPS is updated by the minute. Thank you.

[@ldfox11]

So it's true, earths magnetic pole is shifting. When I used to backpack in the 80's in California, the magnetic north pole was 14 degrees from true north on my maps. Now you say it's 11 degrees difference in California.

[@G.O.Bushcraft]

You can easily do it yourself. Please let me know what you find. 11.9 degrees in Southern Ca toward Arizona.

[@ldfox11]

@@G.O.Bushcraft Sequoia National Park 14° in the 80's. +12.07° now.

[@G.O.Bushcraft]

That seems to be correct with the distance involved. I would like to know the contact info for the US Navy atomic clock in Colorado. They 've been tracking this stuff since the 50's.

[@G.O.Bushcraft]

Did you use the NGEO website?

[@G.O.Bushcraft]

This is the NOAA Website. They have a serious interest in knowing exactly what the declination is. www.ngdc.noaa.gov/geomag/calculators/mobileDeclination.shtml