F134 中部日本における夏期の二酸化炭素の広域的日変化

概要

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Since 1993,CO_2 concentration and its flux between the atmosphere and a temperate forest ecosystem have been examined in the central part of Japan (the Takayama site). Daily variation of CO_2 concentration at the Takayama site during three days in July was compared with the results of a numerical simulation in which both the CO_2 flux of anthropogenic origin and that from the ecosystem were considered. The CO_2 flux from the ecosystem was estimated from the data at the Takayama site and extended to all the central part of Japan with the aid of a vegetation map. The anthropogenic contamination of CO_2 was also investigated. The simulation suggested the possibility of long-range transport of CO_2 from Nagoya and Tokyo, two cities located about 150km south and 300km southeast of the Takayama site. The effect of these large cities was greater than that of nearby Takayama City.
日本流体力学会の論文
2000-07-25