First comparison between ground-based and satellite-borne measurements of tropospheric nitrogen dioxide in the Po basin
First comparison between ground-based and satellite-borne measurements of tropospheric nitrogen dioxide in the Po basin
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DOI：
10.1029/2004jd004547
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发表时间：
2004-08
影响因子：
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通讯作者：
A. Petritoli;P. Bonasoni;G. Giovanelli;F. Ravegnani;I. Kostadinov;D. Bortoli;A. Weiss;D. Schaub;A. Richter;Francesco Fortezza
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文献类型：
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作者：
A. Petritoli;P. Bonasoni;G. Giovanelli;F. Ravegnani;I. Kostadinov;D. Bortoli;A. Weiss;D. Schaub;A. Richter;Francesco Fortezza
在Cimone山地区的空气质量是好的（R2 = 0.9），大气的混合特性是测量结果有效比较的最重要参数。然而，即使大气混合特性是最佳的比较，GOME和地基对流层柱数据之间的比例可能不是统一的。它表明，所获得的值（小于1）有关的卫星地面像素所占的NO2热点的分数。索引术语：0345大气成分和结构：污染-城市和区域（0305）; 0365大气成分和结构：对流层-成分和化学; 0368大气成分和结构：对流层-成分输送和化学; 0360大气成分和结构：辐射的传输和散射;关键词：对流层NO2，卫星验证，Po盆地
in the Mount Cimone area is good (R 2 = 0.9) with the mixing properties of the atmosphere being the most important parameter for a valid comparison of the measurements. However, even when the atmospheric mixing properties are optimal for comparison, the ratio between GOME and ground-based tropospheric column data may not be unity. It is demonstrated that the values obtained (less than 1) are related to the fraction of the satellite ground pixel occupied by the NO2 hot spot. INDEX TERMS: 0345 Atmospheric Composition and Structure: Pollution—urban and regional (0305); 0365 Atmospheric Composition and Structure: Troposphere—composition and chemistry; 0368 Atmospheric Composition and Structure: Troposphere—constituent transport and chemistry; 0360 Atmospheric Composition and Structure: Transmission and scattering of radiation; KEYWORDS: tropospheric NO2, satellite validation, Po basin