AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION
Aircraft measurements of the atmospheric CO_2 concentration over Syowa Station (69°00'S, 39°35'E), Antarctica have been continued since January 1983,except in 1985 and 1988. Since the data obtained so far are still insufficient and the measurements were not made in all seasons of all years...
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ftnipr:oai:nipr.repo.nii.ac.jp:00003715 2023-05-15T13:49:01+02:00 AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION ナカザワ タカキヨ ムラヤマ ショウヘイ タナカ マサユキ アオキ シュンジ ヤマノウチ タカシ カワグチ サダオ フカボリ マサシ シオバラ マサタカ マキノ ユキオ Takakiyo NAKAZAWA Shohei MURAYAMA Masayuki TANAKA Shuhji AOKI Takashi YAMANOUCHI Sadao KAWAGUCHI Masashi FUKABORI Masataka SHIOBARA Yukio MAKINO 1992-02 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3715 http://id.nii.ac.jp/1291/00003715/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3715&item_no=1&attribute_id=18&file_no=1 en eng ABSTRACT Center for Atmospheric and Oceanic Studies, Faculty of Science, Tohoku University National Institute of Polar Research Meteorological Research Institute https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3715 http://id.nii.ac.jp/1291/00003715/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 5, 177(1992-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3715&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1992 ftnipr 2022-12-10T19:45:46Z Aircraft measurements of the atmospheric CO_2 concentration over Syowa Station (69°00'S, 39°35'E), Antarctica have been continued since January 1983,except in 1985 and 1988. Since the data obtained so far are still insufficient and the measurements were not made in all seasons of all years, there is some uncertainty in the results. Nevertheless, preliminary inspection of the data shows that : (1) the maximum and minimum concentrations of the average seasonal CO_2 cycle in the lower and middle troposphere appear early in October and in mid-April, respectively; (2) in the upper troposphere, the maximum and minimum occur late in September and early in May, respectively; (3) the peak-to-peak amplitude of the seasonal cycle decreases slightly with height except near the ground surface; (4) the CO_2 concentration increases gradually with height the year and the height-dependent difference of the concentration is smaller in austral winter and spring than in remaining seasons of the year. From comparison with the results of ground-fixed measurements at the South Pole and Cape Grim, Tasmania and other aircraft measurements, it is suggested that the northern hemispheric air with high CO_2 concentration is transported to the Antarctic region through the upper troposphere from austral winter to spring, while air with low CO_2 concentration is transported from southern middle latitudes into the Antarctic region through the lower troposphere in remaining seasons. Report Antarc* Antarctic Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology South pole South pole National Institute of Polar Research Repository, Japan Antarctic The Antarctic Austral Syowa Station South Pole Grim ENVELOPE(-64.486,-64.486,-65.379,-65.379) |
institution |
Open Polar |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Aircraft measurements of the atmospheric CO_2 concentration over Syowa Station (69°00'S, 39°35'E), Antarctica have been continued since January 1983,except in 1985 and 1988. Since the data obtained so far are still insufficient and the measurements were not made in all seasons of all years, there is some uncertainty in the results. Nevertheless, preliminary inspection of the data shows that : (1) the maximum and minimum concentrations of the average seasonal CO_2 cycle in the lower and middle troposphere appear early in October and in mid-April, respectively; (2) in the upper troposphere, the maximum and minimum occur late in September and early in May, respectively; (3) the peak-to-peak amplitude of the seasonal cycle decreases slightly with height except near the ground surface; (4) the CO_2 concentration increases gradually with height the year and the height-dependent difference of the concentration is smaller in austral winter and spring than in remaining seasons of the year. From comparison with the results of ground-fixed measurements at the South Pole and Cape Grim, Tasmania and other aircraft measurements, it is suggested that the northern hemispheric air with high CO_2 concentration is transported to the Antarctic region through the upper troposphere from austral winter to spring, while air with low CO_2 concentration is transported from southern middle latitudes into the Antarctic region through the lower troposphere in remaining seasons. |
format |
Report |
author |
ナカザワ タカキヨ ムラヤマ ショウヘイ タナカ マサユキ アオキ シュンジ ヤマノウチ タカシ カワグチ サダオ フカボリ マサシ シオバラ マサタカ マキノ ユキオ Takakiyo NAKAZAWA Shohei MURAYAMA Masayuki TANAKA Shuhji AOKI Takashi YAMANOUCHI Sadao KAWAGUCHI Masashi FUKABORI Masataka SHIOBARA Yukio MAKINO |
spellingShingle |
ナカザワ タカキヨ ムラヤマ ショウヘイ タナカ マサユキ アオキ シュンジ ヤマノウチ タカシ カワグチ サダオ フカボリ マサシ シオバラ マサタカ マキノ ユキオ Takakiyo NAKAZAWA Shohei MURAYAMA Masayuki TANAKA Shuhji AOKI Takashi YAMANOUCHI Sadao KAWAGUCHI Masashi FUKABORI Masataka SHIOBARA Yukio MAKINO AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
author_facet |
ナカザワ タカキヨ ムラヤマ ショウヘイ タナカ マサユキ アオキ シュンジ ヤマノウチ タカシ カワグチ サダオ フカボリ マサシ シオバラ マサタカ マキノ ユキオ Takakiyo NAKAZAWA Shohei MURAYAMA Masayuki TANAKA Shuhji AOKI Takashi YAMANOUCHI Sadao KAWAGUCHI Masashi FUKABORI Masataka SHIOBARA Yukio MAKINO |
author_sort |
ナカザワ タカキヨ |
title |
AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
title_short |
AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
title_full |
AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
title_fullStr |
AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
title_full_unstemmed |
AIRCRAFT MEASUREMENTS OF ATMOSPHERIC CO_2 CONCENTRATION OVER THE ANTARCTIC REGION |
title_sort |
aircraft measurements of atmospheric co_2 concentration over the antarctic region |
publisher |
ABSTRACT |
publishDate |
1992 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3715 http://id.nii.ac.jp/1291/00003715/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3715&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(-64.486,-64.486,-65.379,-65.379) |
geographic |
Antarctic The Antarctic Austral Syowa Station South Pole Grim |
geographic_facet |
Antarctic The Antarctic Austral Syowa Station South Pole Grim |
genre |
Antarc* Antarctic Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica E. Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology South pole South pole |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3715 http://id.nii.ac.jp/1291/00003715/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 5, 177(1992-02) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3715&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250425577635840 |