【摘 要】
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Biomass burning in the Indochina Peninsula (Indochina) is one of the important ozone sources in the low troposphere over East Asia in springtime.Moderate Re
【机 构】
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Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
【出 处】
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第十一届全国气溶胶会议暨第十届海峡两岸气溶胶技术研讨会
论文部分内容阅读
Biomass burning in the Indochina Peninsula (Indochina) is one of the important ozone sources in the low troposphere over East Asia in springtime.Moderate Resolution Imaging Spectroradiometer (MODIS) data show that 20,000 or more active fire detections occurred annually in spring only from 2000 to 2011.In this study,WRF-Chem model was employed to evaluate the biomass burning products transport from Indochina during the episodes between 15 and 19 March,2008.Hourly Data at background Liulin mountain station (2862 m elevation) shows that CO,O3 and PM10 are ranging about 200-300 ppb,30-60 ppb and 50-80 ug/m3,respectively.It was estimated that the concentrations of those species are about factor of 2-3 higher than other seasons during study period.Simulation results demonstrate that the leeside troughs over Indochina play a dominant role in the uplift of the air pollutants below 3 km.Furthermore,the impact of biomass burning from Indochina on downward shortwave flux could as high as around 20- 30 Wm-2 in northern Taiwan during study period.
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