CONCENTRATION OF ATMOSPHERIC CARBON DIOXIDE AT THE JAPANESE ANTARCTIC STATION, SYOWA

元データ 国立極地研究所

概要

Continuous measurement of the atmospheric CO_2 concentration was initiated at Syowa Station in February 1984. Variation of CO_2 concentration at this station can be divided into three components such as secular trend, seasonal cycle and irregular variation after removing contaminated data. The secular trend was variable with time. The increase rate of CO_2 concentration was low from 1984 to 1986,but it became very high in 1987 and 1988. This change may be related to the 1987 ENSO event. The average rate of annual CO_2 increase over the 5 years was about 1.6 ppmv (yr)^<-1>. The average seasonal CO_2 cycle showed minimum and maximum concentrations in mid-April and early in October and its peak-to-peak amplitude was about 1.1 ppmv. The seasonal cycle including irregular parts was variable from year to year, but there was no indication of long-term expansion of the amplitude. The irregular CO_2 variation observed, especially from February to August, had a high correlation with the air mass exchange by synoptic scale weather disturbances.

著者

張 紀久夫 阪大基:福井工大工
Takata Morimasa National Institute Of Polar Research
Kawaguchi Sadao Nagaoka National College Of Technology
Shiobara Masataka National Institute For Polar Research
Morimoto S National Institute Of Polar Research Organization Of Information And Systems
Aoki Shuji Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
KAWAGUCHI Sadao National Institute of Polar Research
AOKI Shuhji National Institute of Polar Research
FUKABORI Masashi Meteorological Research Institute
MURAYAMA Haruta Faculty of Education, Yokohama National University
NAKAZAWA Takakiyo Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
MURAYAMA Shohei Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
TANAKA Masayuki Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
Yamanouchi Takashi National Institute For Polar Research
Aoki Shuhji Faculty Of Science Tohoku University
Mae S National Institute Of Polar Research Research Organization Of Information And Systems
Tanaka Masayuki Center For Atmospheric And Oceanic Studies Faculty Of Science Tohoku University
SHIOBARA Masataka Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
Murayama Shohei Upper Atmosphere And Space Research Laboratory Faculty Of Science Tohoku University
Shiobara M Meteorological Res. Inst. Tsukuba Jpn
Fukabori M Meteorological Res. Inst. Ibaraki Jpn
Muramatsu Hisafumi Faculty Of Education Yokohama National University
Shinbori K Hokkaido Univ. Sapporo
Yamada T Geosystems Inc.
Kawaguchi Sadao Nagoya University
Yamanouchi Takashi National Inst. Of Polar Res. And Dep. Of Polar Sci. The Graduate Univ. For Advanced Studies 10-3 Mid
Yamanouchi Takashi National Institute Of Polar Research 10-3 Midoricho Tachikawa Tokyo Japan.
Tanaka Masayuki Department Of Materials Science And Processing Graduate School Of Engineering Osaka University
Shinbori K Nagaoka National College Of Technology
Yamada Tomomi Geosystems Inc.
Murayama Haruta Faculty Of Education Yokohama National University

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