论文信息 - AURORAL OVAL PLOTTER AND NOMOGRAPH FOR DETERMINING CORRECTED GEOMAGNETIC LOCAL TIME, LATITUDE, AND LONGITUDE FOR HIGH LATITUDES IN THE NORTHERN HEMISPHERE

AURORAL OVAL PLOTTER AND NOMOGRAPH FOR DETERMINING CORRECTED GEOMAGNETIC LOCAL TIME, LATITUDE, AND LONGITUDE FOR HIGH LATITUDES IN THE NORTHERN HEMISPHERE

Abstract : A nomographic computer is presented which graphically converts geographical coordinates and universal time into geomagnetic coordinates and geomagnetic local time in the Corrected Geomagnetic system of Hultqvist. The computer is formulated as a map of high latitudes in the Northern Hemisphere on which the position of the auroral oval can be projected directly for any time of day, for any magnetic activity, with account being taken of seasonal variation of the geomagnetic local time coordinate. Instructions for its use, discussion of its accuracy, and examples of its application are given.

James A Whalen | J. A. Whalen | J. Whalen

[1] Georg Gustafsson,et al. On the orientation of auroral arcs , 1967 .

[2] G. Gustafsson,et al. On the magnetic time dependence of the auroral zone currents , 1960 .

[3] B. Hultqvist. Auroral Isochasms , 1959, Nature.

[4] Y. Hakura. TABLES AND MAPS OF GEOMAGNETIC COORDINATES CORRECTED BY THE HIGHER ORDER SPHERICAL HARMONIC TERMS , 1965 .

[5] P. Sandford. Variations of auroral emissions with time, magnetic activity and the solar cycle , 1968 .

[6] N. Fukushima. SEASONAL CHANGE OF AURORAL ZONE IN CORRECTED GEOMAGNETIC LATITUDES , 1965 .

[7] Y. Feldstein,et al. Dynamics of auroral belt and polar geomagnetic disturbances , 1967 .

[8] B. Maehlum. Universal‐time control of the low‐energy electron fluxes in the polar regions , 1968 .