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Scattering of Radio Waves in Polar Regions


THE interesting letter by Harang and Stoffregen1, concerning ionospheric radio wave reflections at Tromsø, prompts the recollection of some observations made by us at the same observatory during the Second International Polar Year, 1932–33, on a type of radio echo which seems peculiar to polar regions.

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  1. NATURE, 142, 832 (1938).

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  2. Proc. Roy. Soc., A, 164, 467 (1938).

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APPLETON, E., NAISMITH, R. Scattering of Radio Waves in Polar Regions. Nature 143, 243–244 (1939).

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