Temporal Variations of Atmospheric Carbon Dioxide at Okinawa, Japan

• Tanaka Masayuki

  Upper Atmosphere and Space Research Laboratory, Tohoku University

• Nakazawa Takakiyo

  Upper Atmosphere and Space Research Laboratory, Tohoku University

• Ohshima Hiroyuki

  Upper Atmosphere and Space Research Laboratory, Tohoku University International Meteorological and Oceanographic Consultant

• Aoki Shuhji

  Upper Atmosphere and Space Research Laboratory, Tohoku University National Institute of Polar Research

Bibliographic Information

Other Title

• 沖縄における大気中の二酸化炭素濃度の時間的変動

Abstract

The concentration of atmospheric CO₂ was measured continuously, 300m offshore of the main island of Okinawa, Japan for the period from February, 1983 to February, 1985. A diurnal variation of CO₂ concentration was found during the warm months of March through October, with an enhanced magnitude in the summer season, strongly depending on the atmospheric stability. The CO₂ concentration, obtained by applying a statistical data selection scheme, showed that the seasonal CO₂ variation reaches a maximum in late April and a minimum in mid-September with the peak-to-peak amplitude of 7.2ppmv. During these measurements, the rate of secular CO₂ increase was about 1.6 ppmv/year. These results are consistent with those of our aircraft measurements in the lower troposphere over Okinawa for the same period.

Journal

• Journal of the Meteorological Society of Japan. Ser. II

  Journal of the Meteorological Society of Japan. Ser. II 65 (2), 279-285, 1987

  Meteorological Society of Japan

Keywords

• Atmospheric Science

Details

• CRID: 1390001206505007104
• NII Article ID: 130007345809
• DOI: 10.2151/jmsj1965.65.2_279
• ISSN: 21869057
• ISSN: 00261165
• Web Site: https://www.jstage.jst.go.jp/article/jmsj1965/65/2/65_2_279/_pdf
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed