Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica
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 compone...
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Faculty of Education, Shinshu University
1986
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ftnipr:oai:nipr.repo.nii.ac.jp:00002074 2023-05-15T13:47:59+02:00 Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica Kunimoto Iwai 1986-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2074 http://id.nii.ac.jp/1291/00002074/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2074&item_no=1&attribute_id=18&file_no=1 en eng Faculty of Education, Shinshu University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2074 http://id.nii.ac.jp/1291/00002074/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 45, 38-46(1986-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2074&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1986 ftnipr 2022-11-12T19:42:52Z 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. Report Antarc* Antarctic Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Antarctic Syowa Station The Antarctic |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
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. |
format |
Report |
author |
Kunimoto Iwai |
spellingShingle |
Kunimoto Iwai Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
author_facet |
Kunimoto Iwai |
author_sort |
Kunimoto Iwai |
title |
Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
title_short |
Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
title_full |
Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
title_fullStr |
Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
title_full_unstemmed |
Morphological features of combination of bullet-type snow crystals observed at Syowa Station, Antarctica |
title_sort |
morphological features of combination of bullet-type snow crystals observed at syowa station, antarctica |
publisher |
Faculty of Education, Shinshu University |
publishDate |
1986 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2074 http://id.nii.ac.jp/1291/00002074/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2074&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Syowa Station The Antarctic |
geographic_facet |
Antarctic Syowa Station The Antarctic |
genre |
Antarc* Antarctic Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctic Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2074 http://id.nii.ac.jp/1291/00002074/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 45, 38-46(1986-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2074&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248343789371392 |