In-situ measurement of the atmospheric CO concentration at Syowa Station, Antarctica

A high-precision measurement system for the atmospheric CO concentration was developed. With some modifications to a gas chromatograph CO analyzer, instrumental reproducibility of 0.5 ppbv was achieved. This could be sufficient for detection of short-term, seasonal and long-term variations of the at...

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Bibliographic Details
Main Authors: Shinji Morimoto, Makoto Wada, Satoshi Sugawara, Shuji Aoki, Takakiyo Nakazawa, Takashi Yamanouchi
Format: Report
Language:English
Published: National Institute of Polar Research/National Institute of Polar Research /Miyagi University of Education/Center for Atmospheric and Oceanic Studies, Tohoku University/Center for Atmospheric and Oceanic Studies, Tohoku University/National Institute of Polar Research 2002
Subjects:
Antarctic
Syowa Station
The Antarctic
Antarc*
Antarctica
Polar meteorology and glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2950
http://id.nii.ac.jp/1291/00002950/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2950&item_no=1&attribute_id=18&file_no=1
Description
Summary:A high-precision measurement system for the atmospheric CO concentration was developed. With some modifications to a gas chromatograph CO analyzer, instrumental reproducibility of 0.5 ppbv was achieved. This could be sufficient for detection of short-term, seasonal and long-term variations of the atmospheric CO concentration in the Antarctic region. A standard gas system to maintain a consistent calibration scale for the CO measurements was also prepared. The measurement system was installed at Syowa Station in March 2000 and has been maintained up to the present. The first-year's observation showed a clear seasonal cycle of CO concentration.

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