Spectroscopic measurements of atmospheric N2O at Syowa Station, Antarctica: Preliminary results

元データ 国立極地研究所


Spectroscopic measurement of atmospheric trace constituents at Syowa Station, Antarctica (69°00'S, 39°35'E) was started on 24 March 1983. Preliminary results of this measurement are presented. Total atmospheric nitrous oxide (N_2O) deduced from the transmittance of solar radiation at 2576(cm)^<-1> (3.88 μm) indicated a seasonal variation with a maximum in spring. The deduced mixing ratios of N_2O were smaller than the value of 300 ppbv measured by a gaschromatographic technique. The method of analysis was also examined in terms of the atmospheric models to be used and it was shown that a multi-layer model should be applied to the case of solar zenith angle larger than 85°.


Yamanouchi Takashi National Institute of Polar Research
Takata Morimasa National Institute Of Polar Research
KAWAGUCHI Sadao National Institute of Polar Research
MAKINO Yukio Meteorological Research Institute
Kawaguchi Sadao Fac. Of Agr. Kyushu Univ.
Yamanouchi Takashi Geosystems Inc.
Yamanouchi Takashi National Institute For Polar Research
Ogawa Toshihiro University of Tokyo
Tanaka Masayuki Center For Atmospheric And Oceanic Studies Faculty Of Science Tohoku University
Muramatsu Hisafumi Meteorological Research Institute
Tanaka Masayuki Tohoku University
Makino Yukio Hakodate Marine Observatory, Japan Meteorological Agency
Ogawa T Nagoya Univ. Toyokawa
Kawaguchi S Kyushu Univ.
Muramatsu Hisafumi Faculty Of Education Yokohama National University
Koga S National Inst. Resources And Environment Tsukuba
Yamanouchi Takashi National Inst. Of Polar Res. And Dep. Of Polar Sci. The Graduate Univ. For Advanced Studies 10-3 Mid
Tanaka Masayuki Department Of Materials Science And Processing Graduate School Of Engineering Osaka University
Murayama Haruta Faculty Of Education Yokohama National University