| Impact of Aircraft NOx Emission on NOx and Ozone over China |
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| 作者姓名： | 刘煜 I.S.A.ISAKSEN J.K.SUNDET 周秀骥 马建中 |
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| 作者单位： | [1]ChineseAcademyofMeteorologicalSciences,Belting100081 [2]DepartmentofGeophysics,UniversityofOslo,Norway |
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| 摘 要： | A three-dimensional global chemistry transport model (OSLO CTM2) is used to investigate the impact of subsonic aircraft NOx emission on NOz and ozone over China in terms of a year 2000 scenario of subsonic aircraft NOx emission. The results show that subsonic aircraft NOx emission significantly affects northern China, which makes NOx at 250 hPa increase by about 50 pptv with the highest percentage of 60% in January, and leading to an ozone increase of 8 ppbv with 5% relative change in April. The NOx increase is mainly attributed to the transport process, but ozone increase is produced by the chemical process. The NOx increases by less than 10 pptv by virtue of subsonic aircraft NOx emission over China,and ozone changes less than 0.4 ppbv. When subsonic aircraft NOx emission over China is doubled, its influence is still relatively small.
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| 关 键 词： | 飞机排放 NOx 氮氧化物 臭氧 中国地区 三维全球化学输送模式 亚音速飞机 大气污染 浓度分析 |
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