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It may not be important, but it IS a matter of wide interest, because it determines

the length of daylight and darkness everywhere on Earth, as well as the onset of

each change of seasons.

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10y ago
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12y ago

If you know the magnetic declination you know how far off a magnetic compass is and you can correct for that when you navigate.

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Q: Why is it important to know an area's magnetic declination?
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Why is magnetic Declination is important?

Because if you need to use your compass to figure out which direction is north,then you need to know by how much the direction the compass points is wrong,and which way. That's the magnetic declination.


When using a compass to map an area why is it important to know an areas magnetic declination?

Unlike the geographic poles, which are always in the same place, the magnetic poles change location throughout the history of earth. So when using a compass to map or explore the Earth's surface, you need to make a correction for the difference between geographic nor and magnetic north.


To convert a grid azimuth to a magnetic azimuth you will need to know g-m angle. where would you look for this piece of information?

Declination Diagram


What is the magnetic declination for Missouri?

Zero. That's not precisely true, but if you really need a precise value you'd already know better than to ask what the declination was for an area as large as the state of Missouri. The agonic line (where the declination is precisely zero) does currently run through Missouri, so the value is less than a degree or two for essentially the whole state.


What is the optimun angle of declination?

Zero degrees! If the angle of declination is 0°, then magnetic north is exactly the same as true north, making it much easier to navigate. But really, there isn't any "optimum" angle. One angle is just as good as another as long as you know how to correct for it in the right way.


How do you align your compass to true north?

To align your compass to true north, you need to adjust for magnetic declination, which is the angle between magnetic north and true north. You can find the specific magnetic declination for your location using online tools or a topographic map. Once you know the value of magnetic declination, you can use it to adjust the compass needle or rotate the bezel to align it with true north.


Is it important to know formulas for pie why?

It is important to know formulas of pi for circles like areas of a circle and its circumference


What are the causes of magnetic drift?

I want to know about magnetic drifs.what are the causes? I want to know about magnetic drifs.what are the causes?


Who said the magnetic field theory?

Tesla was a very important scientist and he said the magnetic field theory. It was a very significant theory and today we all know about the magnetic fields. A pop band has also used this name too.


Why is it important for an actor to know stage areas?

Because he or she has to know which direction to turn, what direction others will come from, etc.


Why is it important for us to identify areas which are prone to drought?

We need to know the areas of earth that are prone to drought because they affect the efficacy with which such areas may be used for agriculture.


Region around a magnet in which magnetic force can act?

Magnetic freild