Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica

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概要

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• Morphological features of combination of bullet-type snow crystals replicated at Syowa Station, Antarctica are discussed from observations using a stereomicroscope. Some stereophotomicrographs of them are shown. The number of bullets forming the combination was counted. The bullets with five components were the most frequently observed. The maximum number of components was ten. The angles of their c-axes were measured, and found that about 70°, 55° and 88° or their supplementary angle were predominant. In addition, 64° and 78° were found. These angles may be explained by the CSL theory by T. KOBAYASHI et al. (J. Cryst. Growth, 32,233,1976). Apparent pyramidal faces of bullet crystals are not the crystallographic pyramidal faces; {1011}, but are mere skeleton structures. These findings will be important for discussing the optical phenomena in the Antarctic atmosphere.

• 国立極地研究所の論文

著者

• IWAI Kunimoto

  Faculty of Education, Shinsyu University

• Iwai Kunimoto

  Faculty Of Education Shinsyu University

• Iwai Kunimoto

  Faculty Of Education Shinshu University

関連論文

• OBSERVATION OF STRATOSPHERIC NO_2 AT SYOWA STATION, ANTARCTICA
• GROUND BASED MEASUREMENTS OF COLUMN AMOUNTS OF NO_2 OVER SYOWA STATION, ANTARCTICA
• Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica
• RELATIONSHIP BETWEEN ATMOSPHERIC CO_2 AND CH_4 CONCENTRATIONS AT SYOWA STATION, ANTARCTICA

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