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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Effect of biogenic volatile organic compound emissions on tropospheric chemistry during the Atmospheric Pollution Over the Paris Area (ESQUIF) campaign in the Ile-de-France region - art. no. 8560
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Effect of biogenic volatile organic compound emissions on tropospheric chemistry during the Atmospheric Pollution Over the Paris Area (ESQUIF) campaign in the Ile-de-France region - art. no. 8560

机译：法兰西岛大区巴黎地区大气污染（ESQUIF）活动期间，生物挥发性有机化合物的排放对对流层化学的影响-艺术。没有。 8560

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1] This paper investigates the impact of biogenic isoprene and terpene emissions on photochemical species levels in the French Ile-de-France region during several photooxidant pollution episodes in summer 1998 and 1999 during the Atmospheric Pollution Over the Paris Area (ESQUIF) project. The effect of biogenic emissions on both ozone produced on a continental scale and advected in Ile-de-France and on ozone locally formed are assessed. For this purpose, simulations with and without biogenic emissions are performed with a nested version of the CHIMERE model. This chemistry transport model includes both a continental (western European) domain with 0.5degrees horizontal resolution and a regional domain (Ile-de-France) of 150 x 150 km extension with a horizontal resolution of 6 km. An emissions database for biogenic isoprene and terpene emissions from forests has been set up. These emissions are estimated using emission factors for different tree species recently revised by Simpson et al. [1999] and for different land use data sets, including highly resolved (1 km) satellite measurements for Ile-deFrance. Good agreement has been found between modeled and measured (by aircraft) isoprene levels (overall bias <10%), which lends confidence to the use of the emissions database for subsequent simulations. The comparison between runs with and without biogenic volatile organic compound (VOC) emissions indicates a significant difference in ozone in Ile-de-France, up to 40 ppb for one extreme day. Biogenic VOC emissions from Ile-de-France along with those from outside the Ile-de-France region have an approximately equal responsibility for the additional ozone buildup. The main reason for this increased ozone formation is the enhancement of radicals due to larger concentrations of carbonyl species and ozone and their subsequent photolysis. Biogenic emissions lead to a shift in the sensitivity to emissions (toward more "NOx-limited''). However, generally, either with or without biogenic emissions, a "VOC-limited'' regime is simulated over the Ile-de-France region. [References: 46
机译：1]本文研究了1998年夏季和1999年巴黎大气污染（ESQUIF）项目期间，法国大法兰西岛地区生物异戊二烯和萜烯排放对光化学物质水平的影响。评估了生物排放物对在大范围内产生并在法兰西岛上平流的臭氧以及对本地形成的臭氧的影响。为此，使用CHIMERE模型的嵌套版本执行有无生物源排放的模拟。这种化学迁移模型包括水平分辨率为0.5度的大陆（西欧）区域和水平分辨率为6 km的150 x 150 km扩展区域（法兰西岛）。建立了森林生物异戊二烯和萜烯排放的排放数据库。使用Simpson等人最近修订的不同树种的排放因子来估算这些排放。 （1999年）以及不同的土地利用数据集，包括法兰西岛的高度解析（1公里）卫星测量。在建模和测量（飞机）的异戊二烯水平（总体偏差<10％）之间已经找到了很好的一致性，这使人们有信心将排放数据库用于后续的模拟。有无生物挥发性有机化合物（VOC）排放的运行之间的比较表明，法兰西岛上的臭氧存在显着差异，一天中最高可达40 ppb。法兰西岛和法兰西岛以外地区的生物VOC排放量对增加臭氧的产生负有几乎同等的责任。臭氧形成增加的主要原因是由于羰基物质和臭氧浓度较高以及随后的光解作用，自由基的增加。生物排放导致对排放的敏感性发生变化（趋向于更多的“ NOx限制”），但是，无论有无生物源排放，通常在法兰西岛上模拟“ VOC限制”制度地区。 [参考：46

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