Temporal variations of atmospheric CO2 concentration and carborn isotope ratio in Ny-Alesund, Svalbard (scientific paper)

元データ 国立極地研究所

概要

Ground based observation of the atmospheric CO_2 concentration and its carbon isotope, δ^<13>C, have been performed in Ny-Ålesund, Svalbard since 1991. The CO_2 concentration and δ^<13>C observed in 1991-1999 showed clear seasonal cycles with peak-to-peak amplitudes of 16.5‰ ppmv and 0.8,respectively. From comparison of the seasonal cycles, it was found that the seasonal CO_2 cycle in Ny-Ålesund is mainly caused by seasonal change of biospheric activities. Interannual variations of the CO_2 concentration and δ^<13>C superimposed on their secular trends were also observed. Comparing both of the interannual variations revealed that the cause was primarily ascribed to the imbalance of the CO_2 exchange between the atmosphere and the terrestrial biosphere.

著者

張 紀久夫 阪大基:福井工大工
Yamanouchi Takeshi Geosystems Inc.
Morimoto S National Institute Of Polar Research Organization Of Information And Systems
Morimoto Shinji National Institute of Polar Research
Aoki Shuji Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
AOKI Shuhji National Institute of Polar Research
Yamanouchi Takashi Geosystems Inc.
Yamanouchi Takashi National Institute For Polar Research
Morimoto S National Inst. Polar Res. Tokyo Jpn
Aoki S Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
清水 明 東大教養
Aoki Shuhji Faculty Of Science Tohoku University
Aoki Syuji National Institute Of Polar Research
清水 明 東大院総合文化・科技団
Mae S National Institute Of Polar Research Research Organization Of Information And Systems
AOKI Shuji National Institute of Polar Research
Mae Shinji Department Of Applied Physics Hokkaido University
Yamanouchi Takashi National Institute Of Polar Research Organization Of Information And Systems
Murayama Syohei National Institute For Resources And Environment
Yamanouchi T Graduate Univ. Advanced Studies Tokyo
清水 明 Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Yamada T Geosystems Inc.
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.
Mae Shinji National Institute For Resources And Environment
Morimoto Shinji National Institute For Resources And Environment
SHIMIZU Akira Deparment of Physics, Rikkyo University

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