found: Work cat.: Maeda, K. Infrasonic waves from the auroral zone, 1964.
found: McGraw-Hill dictionary of scientific and technical terms, 2003(auroral zone -- [geophysics] -- A roughly circular band around either geomagnetic pole within which there is a maximum of auroral activity; lies about 10-15 degrees geomagnetic latitude from the geomagnetic poles)
found: Dictionary of geophysics, astrophysics, and astronomy, 2001(auroral zone -- the region where auroras are ordinarily seen, centered at the magnetic pole and extending between latitudes 66 and 71 degrees)
found: Van Nostrands scientific encyclopedia, 2002:v. 1, p. 328 (auroral zone -- a roughly circular band around either geomagnetic pole above which there is a maximum of auroral activity)
found: Academic Press dictionary of science and technology, 1992(auroral zone -- geophysics -- the region of maximum auroral activity in either hemisphere that lies 10-15 degrees geomagnetic latitude from the geomagnetic poles)
