AtmosphericChemistryandPhysics SCIAMACHY tropospheric NO 2 over Switzerland: estimates of NO x lifetimes and impact of the complex Alpine topography on the retrieval
AtmosphericChemistryandPhysics SCIAMACHY tropospheric NO 2 over Switzerland: estimates of NO x lifetimes and impact of the complex Alpine topography on the retrieval
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大气化学和物理 SCIAMACHY 瑞士上空对流层 NO 2：NO x 寿命估计以及复杂的阿尔卑斯地形对反演的影响
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通讯作者：
H. Anisman
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作者：
W. Bowers;M. Hamilton;R. Zacharko;H. Anisman
.本研究评估NO 2垂直对流层柱密度（VTC）检索从测量的扫描成像吸收光谱仪大气制图（SCIAMACHY）以上瑞士和阿尔卑斯地区。像素平均NO x排放率从空间和时间上的高度分辨率的库存和NO 2 VTC反气旋气象条件下的密切相关性表明，SCIAMACHY检测在瑞士的NO x污染源的一般能力。这种相关性进一步用于推断季节性平均NOx寿命仔细考虑到这些估计的NOx排放量的强昼夜循环的influence。在前一年的夏季，NO2的寿命估计为3.6（± 0.8）小时。瑞士上空NO2 VTC分布与SCIAMACHY全球监测实验能力对区域尺度污染特征的比较。在瑞士高原与GOME和地面为基础的原位卫星像素表面的季节性比较，从一个粗略的分辨率全球在阿尔卑斯地区的模型假设（SCD热带）从平流层估计的减法
. This study evaluates NO 2 vertical tropospheric column densities (VTCs) retrieved from measurements of the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) above Switzerland and the Alpine region. The close correlation between pixel averaged NO x emission rates from a spatially and temporally highly resolved inventory and the NO 2 VTCs under anticyclonic meteorological conditions demonstrates the general ability of SCIAMACHY to detect sources of NO x pollution in Switzerland. This correlation is further used to infer seasonal mean NO x lifetimes carefully taking into account the influence of the strong diurnal cycle in NO x emissions on these estimates. Lifetimes are estimated to 3.6 ( ± 0.8) hours in summer previous A comparison between the NO 2 VTC distribution over Switzerland and the from the Global Monitoring Experiment capability of SCIAMACHY to regional scale pollution features. the comparison of seasonal over the Swiss Plateau with GOME and ground based in situ a satellite pixel surface from a coarse resolution global in Alpine region model assumed (SCD trop ) from the subtraction of the stratospheric estimate