北京地区秋季大气CO柱总量的变化  

Variation of the Atmospheric CO Column Amount over Beijing Urban Area in the Fall

作　　者：吴宏议[1] 王普才[1] 王庚辰[1] 郑有飞[2] 孔琴心[1] 

机构地区：[1]中国科学院大气物理研究所中层大气与遥感理论和技术研究部,北京1000292 [2]南京气象学院,南京210044

出　　处：《气候与环境研究》2005年第1期72-79,共8页Climatic and Environmental Research

基　　金：国家自然科学基金资助项目40175008;国家自然科学基金委国际合作局中俄合作项目40311120114

摘　　要：利用中分辨率红外光谱仪于1999年秋采暖前后在北京进行了为期两个月的CO、水汽等大气微量成分柱总量的测量。测量结果表明, 采暖后北京市区 CO柱总量较采暖前有所增加, 采暖前 CO柱总量较小, 日均值为0 147 atm cm, 而采暖后CO柱总量较大, 前7天的日均值为 0. 205 atm cm, 相应地日变化也比较大。但是, 大气中的CO柱总量受到气象条件的重要影响, 影响CO柱总量逐日变化和日变化的气象因子主要有大气稳定度、风速和风向等。CO, water vapor and other trace gases have been measured in Beijing during the transition period of heating in the fall of 1999, using an infrared grating spectrometer of moderate resolution. The measurements show that the CO column amount over Beijing urban area after heating is larger than that before heating. The CO column amount before heating is smaller, the daily average is 0.147 atm-cm, while that after heating is larger, the daily average of the first 7 days is 0.205 atm-cm, and the daily variation is larger as well. However, the variation of CO column amount is closely dependent on meteorological condition, mainly including atmospheric stability, wind speed and wind direction.

关 键 词：CO柱总量 红外光谱仪 

分 类 号：P402[天文地球—大气物理学与大气环境]