Terrestrial Magnetism Flashcards
What is the dip angle?
Angle between total field and local horizon
Large dip means weak blank field and strong blank field.
Weak horizontal. Strong verical.
Low dip means weak blank field and strong blank field.
Weak vertical - strong horizontal
Where is the maximum horizontal component of magnetic field?
Equator.
Where is the maximum vertical component of magnetic field?
North pole.
What is the letter for magnetic vertical component?
‘Z’
What is the name for a long term change in the earths magnetic field?
Secular.
Is solar wind a predictable or unpredictable change to the earths magnetic field.
Unpredictable.
What does Agonic mean?
Zero variation.
How do you show magnetic north on a diagram?
A line with half a diamond.
With a west heading change, do you add or subtract?
Subtract.