Measurements of atmospheric methane at the Japanese Antarctic Station, Syowa

S. Aoki, T. Nakazawa, S. Murayama, S. Kawaguchi

研究成果: Article査読

43 被引用数 (Scopus)

抄録

The diurnal CH4 variation was hardly observable throughout the year. The average seasonal CH4 variation showed minimum and maximum concentrations in early March and late September, respectively, and a peak-to-peak amplitude of 30 ppbv. Annual mean values of the CH4 concentration were 1640 and 1651 ppbv in 1988 and 1989, respectively. A concentration difference of 11 ppbv between the two years may suggest that recent annual increase rate of the CH4 concentration is smaller than previously reported values of about 1% year-1. -from Authors

本文言語English
ページ(範囲)273-281
ページ数9
ジャーナルTellus, Series B
44 B
4
出版ステータスPublished - 1992 1 1
外部発表はい

ASJC Scopus subject areas

  • 大気科学

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