GLA22 full form

Meaning : Geophysics luminous aurora – black aurora

Category : Geoglobe
Sub Category : Phenomena

What does GLA22 mean or stand for ?

Aurora are phenomena that occur at countries close to the poles.It is a multi colored light show that is created in the atmosphere when electrically charged ions are created because of interaction of the earth magnetic poles and solar winds.these are common  in high latitudes where the magnetic field strong.

However it occasionally occurs in lower latitudes and forms a shape of a band.These bands extend towards the north pole and give the effect of flickering light and are called as “black aurora”