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Old 06-03-2011, 15:06   #1
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Magnetic North Shift

Anyone concerned about the headlines detailing a rapid shift of magnetic north towards Russia at an extremely accelerated pace?

How does this affect us as navigators. Deviation recommendations will have to be adjusted?
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Old 06-03-2011, 15:23   #2
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Re: Magnetic North Shift

Its the pre-Shift Wobble.....
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Old 06-03-2011, 15:30   #3
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Re: Magnetic North Shift

With massive human over population, climate change in all of its forms, the loss of a huge percentage of the Earth's available ground water, dying out of most of the coral reefs, rising seas and disappearing shorelines, displaced populations... NOW THIS!

It rings true, I suppose that frequent deviation corrections are in order?

I for one, plan to tread as lightly as I can, but see as much as possible of the still beautiful planet that we live on...

Mark
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Old 06-03-2011, 15:33   #4
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Re: Magnetic North Shift

If you use out-dated charts or plan on still cruising 100 years from now it will be a major problem.
I'd suggest worrying about things you have control over.

After you've studied and taken classes and read all there is about cruising, be prepared for it to be different out there.
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Old 06-03-2011, 15:47   #5
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Re: Magnetic North Shift

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Originally Posted by TheWatchman View Post
Anyone concerned about the headlines detailing a rapid shift of magnetic north towards Russia at an extremely accelerated pace?

How does this affect us as navigators. Deviation recommendations will have to be adjusted?
Not to be pedantic, but strictly speaking, a shift of the magnetic poles will affect the magnetic variation (the angle between the true north and the direction of the magnetic field at a particular geographical location). The magnetic deviation is determined by the magnetic field of the vessel on which the compass is located.
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Old 06-03-2011, 15:52   #6
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Re: Magnetic North Shift

I have heard this was happening and I directly attribute it to a high density of automobiles in the USA and China all turning clockwise on a closed path. The rotationally accelerating steel causing a small magnetic moment in all of the automobiles has perturbed the earths magnetic field causing it to precess.

The corresponding deviation in the Van Allen belt has caused dramatic shifts in the earths climate as evidenced every bit of biology and ecology studied in the last 10 years. Because of the climatic changes there are more forest fires and rotting vegetation all releasing CO2 into the atmosphere. The increase in CO2 accelerates the climatic change causing uncontrolled open-loop oscillations in the weather. We need to start making more left hand turns to reverse the damage.

In all seriousness, geophysicists have observed indications that the earths magnetic field may flip. The reversal of the magnet field is common with the last one occuring some 780,000 years ago.

We will be indeed be glad for the GPS and may want to change the response rates of the GPS units to further enable short time scale course adjustments so as not to need the compass to steer. Else we may need a ships gyrocompass.
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Old 06-03-2011, 17:20   #7
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Re: Magnetic North Shift

Quote:
Originally Posted by Mark Johnson View Post
With massive human over population, climate change in all of its forms, the loss of a huge percentage of the Earth's available ground water, dying out of most of the coral reefs, rising seas and disappearing shorelines, displaced populations... NOW THIS!

It rings true, I suppose that frequent deviation corrections are in order?

I for one, plan to tread as lightly as I can, but see as much as possible of the still beautiful planet that we live on...

Mark
If you really want to help mommy earth, hold your breath as long as you can.
You're breathing out CO2, that horrible "greenhouse gas"

Back in the '70's, people wanted everyone to build underground houses or at least geodesic domes.
It seems they thought square houses presented too much resistance to the winds which would slow down the rotation of the earth...
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Old 06-03-2011, 17:38   #8
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Re: Magnetic North Shift

Oh my God my head hurts. Time to go anchor somewhere there's palm trees and crack a beer before my compass gets to far off.

Oh OK - Maybe that should be tied to a dock?

Na, wrong thread - sorry
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Old 06-03-2011, 18:01   #9
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Re: Magnetic North Shift

I hardly ever used my compass during our circumnavigation. The course was always fairly obvious from the position of the sun. In all my sailing years, I have used a handheld compass only a couple of times to enter a pass.

During a trade wind circumnavigation, you sail with the winds, and eventually you get to the other side without paying much attention to the compass in these days of GPS.

On the other hand, I would really like to have a compass that would tell me the location of all the pirates so that I could be somewhere else.
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Old 06-03-2011, 20:27   #10
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Re: Magnetic North Shift

Guys, guys, I made fun of this last month:

Variation Getting More Variable

Has it been three weeks already?
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Old 06-03-2011, 21:25   #11
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Re: Magnetic North Shift

Poles have been moving forever.
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Old 06-03-2011, 21:36   #12
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Re: Magnetic North Shift

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Originally Posted by senormechanico View Post
If you really want to help mommy earth, hold your breath as long as you can.
You're breathing out CO2, that horrible "greenhouse gas"
I'm working on my flatulence first, then belching, and finally on exhaling.

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Old 06-03-2011, 21:40   #13
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Re: Magnetic North Shift

Quote:
Originally Posted by senormechanico View Post
If you really want to help mommy earth, hold your breath as long as you can.
You're breathing out CO2, that horrible "greenhouse gas"

Back in the '70's, people wanted everyone to build underground houses or at least geodesic domes.
It seems they thought square houses presented too much resistance to the winds which would slow down the rotation of the earth...
I turned my old nuclear bomb shelter into an underground house. Now i've got all the bases covered. Right down to the tin foil hat.
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Old 06-03-2011, 22:13   #14
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Re: Magnetic North Shift

Quote:
Originally Posted by rebel heart View Post
Poles have been moving forever.
Maybe you engineer types could give us a better explanation. Doesn't it have something to do with the North Star and a star in the Southren Cross shifting positions in the Universe? Causing the axis of the earth to shift and the earth to wobbls a bit.
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Old 06-03-2011, 22:17   #15
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Re: Magnetic North Shift

HowStuffWorks "Why does the North Pole move?"
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