Variations of atmospheric carbon dioxide concentration at Syowa Station (69°00'S, 39°35'E), Antarctica

M. TANAKA, T. NAKAZAWA, M. SHIOBARA, H. OHSHIMA, S. AOKI, S. KAWAGUCHI, T. YAMANOUCHI, Y. MAKINO, H. MURAYAMA

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Abstract

Precise measurements of the atmospheric CO2 concentration were initiated at Syowa Station, Antarctica in 1983. Preliminary inspection of the data obtained up to the present showed that: (1) a regular diurnal variation is not observable; (2) irregular variations are sometimes observed with extremely small amplitudes of 0.2 ppmv at most; (3) a seasonal variation with the minimum concentration in mid‐April and the maximum concentration in mid‐October; and peak‐to‐peak amplitudes of about 1.2 ppmv are detected; (4) annual mean values of the CO2 concentration are 341.2 and 342.6 ppmv for 1983 and 1984, respectively. 1987 Blackwell Munksgaard

Original languageEnglish
Pages (from-to)72-79
Number of pages8
JournalTellus B
Volume39 B
Issue number1-2
DOIs
Publication statusPublished - 1987 Jan 1

ASJC Scopus subject areas

  • Atmospheric Science

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    TANAKA, M., NAKAZAWA, T., SHIOBARA, M., OHSHIMA, H., AOKI, S., KAWAGUCHI, S., YAMANOUCHI, T., MAKINO, Y., & MURAYAMA, H. (1987). Variations of atmospheric carbon dioxide concentration at Syowa Station (69°00'S, 39°35'E), Antarctica. Tellus B, 39 B(1-2), 72-79. https://doi.org/10.1111/j.1600-0889.1987.tb00271.x