STUDY OF THE ARCTIC IONOSPHERE BY AEEANS OF STEP FREQUENCY BACKSCATTER SOUNDING.
ALASKA UNIV COLLEGE GEOPHYSICAL INST
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A Granger step-sounder was instadd opera ted in the backscatter mode at College, Alaska. Preliminary results indicate that direct back scatter echoes from the E and F regions predomi nate when sounding north. A southerly motion of radio auroral echoes as sunset approaches, simi lar to that observed optically, is reported. Future plans are discussed for a combined for w dd and backscatter sounding program. Author