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利用O3数据、气溶胶指数和风场观测资料,对发生在中国黑龙江大兴安岭和印度尼西亚地区的特大火灾进行了分析。结果表明:(1)在火灾发生后,研究区及下风方区域O3总量均有增加;(2)此次黑龙江火灾释放出的CO、NOX、CH4等大气成分是造成5月O3总量增加的主要原因;(3)进一步分析黑龙江火灾发生时期的环流形势发现,火灾发生前,3、4月O3总量的增加来源于西风气流对中高纬高浓度O3的平流输送,而5月则与火灾有较为密切的关系;(4)新加坡和菲律宾地区O3含量增加似乎也与O3前体物有关。
Using O3 data, aerosol index and wind field observations, we analyzed the large fires that occurred in Daxing’anling and Heilongjiang provinces of China. The results show that: (1) after the fire, the total amount of O3 in both the study area and the leeward area has increased; (2) The atmospheric composition of CO, NOX, CH4 released by this Heilongjiang fire has resulted in the increase of the total amount of O3 in May (3) Further analysis of the circulation situation during the period of the fire in Heilongjiang found that before the fire, the increase of the total amount of O3 in March and April came from the advection of the westerly airflow to the high concentration of O3 in mid-high latitudes, while in May (4) The increase of O3 in Singapore and the Philippines also seems to be related to O3 precursors.