STEREO-PROJECTION SYSTEMS FOR AURORAL HEIGHT MEASUREMENTS
Gordon G. Shepherd, Ken V. Paulson, J. A. Nilson · Canadian Journal of Physics · 1961
In the past, auroral heights have been obtained analytically from parallactic photographs. Even though much of the calculation can be replaced with graphical aids, the method is still slow, and somewhat indirect. This paper discusses two stereo-projection systems from which auroral heights can be scaled directly. These and other methods are compared and discussed.