On Some Solar and Lunar Spectra Taken in Little America, Antarctica

Details On Some Solar and Lunar Spectra Taken in Little America, Antarctica On Some Solar and Lunar Spectra Taken in Little America, Antarctica

Mar 1931

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1931phrv...37..477h&link_type=abstract

Physical Review, vol. 37, Issue 5, pp. 477-480

Physics

1

Scientific paper

Solar spectra were taken with a small quartz spectrograph at noon on November 13, 1929, and January 25, 1930, in Little America, Antarctica, by Malcolm P. Hanson of the Byrd Antarctic Expedition. The ultraviolet limit of these spectra was at about 304μμ which was the same as the ultraviolet limit of noon solar spectra taken at Washington, D.C., in December and January. Assuming that the ultraviolet limit of the solar spectra was due to ozone in the upper atmosphere and that the amount of ozone in Washington was the same as that measured by Dobson, Harrison, and Lawrence at Oxford, England, it came out that the effective thickness of the ozone at N.T.P. above Little America was about 0.28 cm on November 13, 1929, and January 25, 1930. The ultraviolet limit of lunar spectra taken at Little America on April 24, 1929, two days after the Antarctic winter night set in, and on July 18, 1929, thirty-five days before the night ended, was at about 305μμ.

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