TL;DRAbstract
Observations with riometers at four pairs of conjugate, or nearly conjugate, stations have been studied to determine how closely auroral radio absorption is correlated at magnetically conjugate points. The available evidence suggests that, if the loss of correlation due to imperfect siting of the stations and to the movement of conjugate points is taken into account, the conjugate correlation remains suprisingly good to high latitudes and perhaps throughout the auroral region. It is suggested that conjugate points move seasonally and irregularly by 100 to 200 km at the earth's surface.
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Observations with riometers at four pairs of conjugate, or nearly conjugate, stations have been studied to determine how closely auroral radio absorption is correlated at magnetically conjugate points. The available evidence suggests that, if the loss of correlation due to imperfect siting of the stations and to the movement of conjugate points is taken into account, the conjugate correlation remains suprisingly good to high latitudes and perhaps throughout the auroral region. It is suggested that conjugate points move seasonally and irregularly by 100 to 200 km at the earth's surface.
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