PRECISE MEASUREMENTS OF ATMOSPHERIC METHANE CONCENTRATION AT SYOWA STATION (69°00'S, 39°35'E), ANTARCTICA

Precise measurements of atmospheric CH_4 concentration was initiated at Syowa Station in February 1988. A regular diurnal variation is not observable but irregular variations are sometimes observed with extremely small amplitude of 5 ppbv at most. A seasonal variation is clearly seen with the amplit...

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Bibliographic Details
Main Authors: アオキ シュンジ, ナカザワ タカキヨ, ムラヤマ ショウヘイ, カワグチ サダオ, Shuhji AOKI, Takakiyo NAKAZAWA, Shohei MURAYAMA, Sadao KAWAGUCHI
Format: Report
Language:English
Published: National Institute of Polar Research 1992
Subjects:
Syowa Station
Antarc*
Antarctica
E. Antarctica
Polar meteorology and glaciology
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3698
http://id.nii.ac.jp/1291/00003698/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3698&item_no=1&attribute_id=18&file_no=1
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Summary:Precise measurements of atmospheric CH_4 concentration was initiated at Syowa Station in February 1988. A regular diurnal variation is not observable but irregular variations are sometimes observed with extremely small amplitude of 5 ppbv at most. A seasonal variation is clearly seen with the amplitude of 30 ppbv. Annual mean values of CH_4 concentration are 1640 and 1651 ppbv for 1988 and 1989,respectively.

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