GIANT PARTICLES IN THE LOWER STRATOSPHERE
Polar stratospheric clouds (PSCs) are well known phenomena in the lower polar stratosphere. Using the data of balloon flights at McMurdo Station, Antarctica, D. J. HOFMANN et al. (J. Geophys. Res., 93,665,1988) and D. J. HOFMANN (Nature, 337,447,1989) have recently showed vertical profiles of aeroso...
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ftnipr:oai:nipr.repo.nii.ac.jp:00003654 2023-05-15T13:49:01+02:00 GIANT PARTICLES IN THE LOWER STRATOSPHERE ワダ マコト Makoto WADA 1991-05 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3654 http://id.nii.ac.jp/1291/00003654/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3654&item_no=1&attribute_id=18&file_no=1 en eng ABSTRACT National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3654 http://id.nii.ac.jp/1291/00003654/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 121-122(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3654&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1991 ftnipr 2022-12-10T19:45:46Z Polar stratospheric clouds (PSCs) are well known phenomena in the lower polar stratosphere. Using the data of balloon flights at McMurdo Station, Antarctica, D. J. HOFMANN et al. (J. Geophys. Res., 93,665,1988) and D. J. HOFMANN (Nature, 337,447,1989) have recently showed vertical profiles of aerosol above the altitude of 10km. The upper limit of the particle size of their measurements was less than about 1μm. We present here the results of balloon observations for measuring relatively large particles (more than 10μm) in the lower stratosphere. The sounding instrument of particles was similar in design to that described by M. MURAKAMI et al. (J. Meteorol. Soc. Jpn., 65,803,1987) called Cloud Particle Video Sonde (CPVS), whose main device was a TV camera. Four balloon flights for sounding stratospheric particles were carried out on May 28,August 5,August 20 and September 2 in 1988 at Syowa Station (69°S, 40°E), Antarctica. Giant particles which look like liquid particles were found on pictures transmitted from the TV camera ascending with the balloon. The size of the largest one was about 150μm diameter. Particles of more than 100μm diameter were found every flight in the lower stratosphere. There is a possibility that the film does not show liquid particles, but non-uniformity of the surface of the film itself, because CPVS uses water-repellent film for collecting particles and the coating was probably not uniform on the film surface. An attempt to check this point is being carried out. Report Antarc* Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology National Institute of Polar Research Repository, Japan Hofmann ENVELOPE(160.600,160.600,-82.667,-82.667) McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Syowa Station |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Polar stratospheric clouds (PSCs) are well known phenomena in the lower polar stratosphere. Using the data of balloon flights at McMurdo Station, Antarctica, D. J. HOFMANN et al. (J. Geophys. Res., 93,665,1988) and D. J. HOFMANN (Nature, 337,447,1989) have recently showed vertical profiles of aerosol above the altitude of 10km. The upper limit of the particle size of their measurements was less than about 1μm. We present here the results of balloon observations for measuring relatively large particles (more than 10μm) in the lower stratosphere. The sounding instrument of particles was similar in design to that described by M. MURAKAMI et al. (J. Meteorol. Soc. Jpn., 65,803,1987) called Cloud Particle Video Sonde (CPVS), whose main device was a TV camera. Four balloon flights for sounding stratospheric particles were carried out on May 28,August 5,August 20 and September 2 in 1988 at Syowa Station (69°S, 40°E), Antarctica. Giant particles which look like liquid particles were found on pictures transmitted from the TV camera ascending with the balloon. The size of the largest one was about 150μm diameter. Particles of more than 100μm diameter were found every flight in the lower stratosphere. There is a possibility that the film does not show liquid particles, but non-uniformity of the surface of the film itself, because CPVS uses water-repellent film for collecting particles and the coating was probably not uniform on the film surface. An attempt to check this point is being carried out. |
format |
Report |
author |
ワダ マコト Makoto WADA |
spellingShingle |
ワダ マコト Makoto WADA GIANT PARTICLES IN THE LOWER STRATOSPHERE |
author_facet |
ワダ マコト Makoto WADA |
author_sort |
ワダ マコト |
title |
GIANT PARTICLES IN THE LOWER STRATOSPHERE |
title_short |
GIANT PARTICLES IN THE LOWER STRATOSPHERE |
title_full |
GIANT PARTICLES IN THE LOWER STRATOSPHERE |
title_fullStr |
GIANT PARTICLES IN THE LOWER STRATOSPHERE |
title_full_unstemmed |
GIANT PARTICLES IN THE LOWER STRATOSPHERE |
title_sort |
giant particles in the lower stratosphere |
publisher |
ABSTRACT |
publishDate |
1991 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3654 http://id.nii.ac.jp/1291/00003654/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3654&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(160.600,160.600,-82.667,-82.667) ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
Hofmann McMurdo Station Syowa Station |
geographic_facet |
Hofmann McMurdo Station Syowa Station |
genre |
Antarc* Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
genre_facet |
Antarc* Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3654 http://id.nii.ac.jp/1291/00003654/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 121-122(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3654&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250418456756224 |