Israel Program for Scientific Translations, 1976 - Clouds - 237 pages
The Geophysical Institute at the University of Alaska Fairbanks offers the full text of the September 28, 1979 article entitled "Noctilucent Clouds," written by T. Neil Davis, as part of the Alaska Science Forum. Davis discusses noctilucent clouds, which are unique because of their height of over 40 miles above the ground. The clouds are most often seen from March through October in the northern hemisphere, and during the summer in the southern hemisphere.
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RANGE OF DISTRIBUTION AND FREQUENCY OF OCCURRENCE
MORPHOLOGY AND DYNAMICS OF NOCTILUCENT CLOUDS
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albedo altitude angle anticyclone Astronomicheskii Atmos average bands blue clouds Bronshten Burov cloud layer condensation nuclei Cosmic Dust curve density determined distribution dust earth's atmosphere equation Figure Fogle formation of noctilucent Geophys Grish Grishin hypothesis ice crystals Ionosphere Izdatel'stvo Jesse July Khvostikov latitudes lucent clouds m/sec martian maximum measurements mesopause mesosphere meteoric particles meteorite method Nablyudeniya serebristykh oblakov Nature of Noctilucent nocti noctilucent cloud displays noctilucent cloud field noctilucent cloud formation noctilucent cloud heights Noctilucent Cloud Observations noctilucent cloud occurrences noctilucent cloud particles º º observations of noctilucent obtained optical photographs photometric polarization rays region Riga rocket scattering serebristykh oblakov serebristym oblakam solar activity soveshchaniya po serebristym spectral spectrograms spectrum stations stellar magnitude stilb Stormer Tallin Tartu Technical Information VINITI temperature tion tropospheric twilight sky upper atmosphere USSR values variation Vasil'ev velocity Venus Vestine Villmann visible water vapor wave wavelength Witt