<正> In-situ measurement of atmospheric CO_2 was made at the top of the Waliguan Mountain(36°17′N,100°54′E,3816m asl).where the air is not directly affected by the local anthropogenic and natural sources,by using a nondispersiveinfrared(NDIR)analyzer and following the procedures proposed by WMO.The CO_2 in the flask samples collected onthe mountain was also analyzed in a laboratory.The measurements uncover the daily,monthly and seasonal variabilitiesand the baseline level of the CO_2 in the air over the“clea...
【英文摘要】
In-situ measurement of atmospheric CO_2 was made at the top of the Waliguan Mountain(36°17′N,100°54′E,3816 m asl).where the air is not directly affected by the local anthropogenic and natural sources,by using a nondispersive infrared(NDIR)analyzer and following the procedures proposed by WMO.The CO_2 in the flask samples collected on the mountain was also analyzed in a laboratory.The measurements uncover the daily,monthly and seasonal variabilities and the baseline level of the CO_2 in the air over the“clea...
【基金】
This study is supported by the National Science and Technology Commission of China.
【更新日期】
2007-04-19
【分类号】
P402
【正文快照】
INTRODUCTION Measurements over the Past deeades have shown that the eoncentrations of the greenhouseg找ses have been inereasing due to anthroPogenie emissions.The eoneentration of atmosPherieCOZ one of the一nost imPortant greenhouse gases,was stable at ab
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