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Study of the aerosol optical characteristics over the Romanian Black Sea Coast using AERONET data
Atmospheric Pollution Research ( IF 4.5 ) Pub Date : 2020-04-21 , DOI: 10.1016/j.apr.2020.04.007
Sabina Stefan , Sanda Voinea , Gabriela Iorga

Present study is focused on the analysis of the similarities and differences in the aerosol properties retrieved from the sun-photometers operating at two sites in Western part of Black Sea, Romanian area, belonging to AERONET network (one on the sea shore at Eforie and the other on the Oil Platform Gloria at about 30 km offshore). Four years data sets (2014–2017) of aerosol optical depth, Ǻngström exponent, single scattering albedo and fine mode fraction, retrieved based on the AERONET algorithms, were used to identify the main aerosol types by season. The study emphasized similar monthly and seasonal variations for aerosol optical properties: mean multi-monthly values of AOD is from 0.1 to 0.3, AE varied between 1 and 2, and FMF varied from 0.7 to about 0.9. The dominant incidence of fine aerosol appears at both sites. Although some annual and seasonal differences between the coastal and marine stations were identified, both sites at the Black See Coast seem to be characterized by same aerosol, with a large fraction of anthropogenic component, composed by fine absorbing and non-absorbing aerosol. Pure marine fraction seems to be present mainly in autumn and in percentages varying from 5% to about 21% of the total mass, depending on the classification scheme. Regardless of the classification scheme used, the results show that dust aerosol is present at both stations less than 10%. Choosing an appropriate threshold range from various schemes to discriminate the aerosol types is not straightforward for sites on Black Sea Coast.



中文翻译:

利用AERONET数据研究罗马尼亚黑海沿岸的气溶胶光学特性

本研究的重点是分析从罗马尼亚黑海西部地区两个站点的太阳光度计获得的气溶胶特性的异同(该站点属于AERONET网络(一个位于Eforie和另一处位于离海约30公里的Gloria石油平台上)。根据AERONET算法检索的四年(2014-2017年)气溶胶光学深度、,ngström指数,单散射反照率和精细模式分数的数据集用于识别主要气溶胶类型。该研究强调气溶胶光学特性的月度和季节变化类似:AOD的平均多个月值在0.1到0.3之间,AE在1到2之间变化,FMF在0.7到0.9之间变化。优良的气溶胶主要发生在两个地点。尽管确定了沿海站点和海洋站点之间的一些年度和季节差异,但布莱克西海岸的两个站点似乎都具有相同的气溶胶特征,其中很大一部分人为成分是由细吸收性和非吸收性气溶胶组成的。纯净的海洋部分似乎主要存在于秋季,其百分比在总质量的5%到21%之间,具体取决于分类方案。无论使用哪种分类方案,结果都表明两个站点的粉尘气溶胶含量均不到10%。对于黑海沿岸的站点而言,从各种方案中选择合适的阈值范围来区分气溶胶类型并非易事。布莱克西海岸的两个站点似乎都具有相同的气溶胶特征,其中很大一部分人为成分是由良好吸收和不吸收的气溶胶组成。纯净的海洋部分似乎主要存在于秋季,其百分比在总质量的5%到21%之间,具体取决于分类方案。无论使用哪种分类方案,结果都表明两个站点的粉尘气溶胶含量均不到10%。对于黑海沿岸的站点而言,从各种方案中选择合适的阈值范围来区分气溶胶类型并非易事。布莱克西海岸的两个站点似乎都具有相同的气溶胶特征,其中很大一部分人为成分是由良好吸收和不吸收的气溶胶组成。纯净的海洋部分似乎主要存在于秋季,其百分比在总质量的5%到21%之间,具体取决于分类方案。无论使用哪种分类方案,结果都表明两个站点的粉尘气溶胶含量均不到10%。对于黑海沿岸的站点而言,从各种方案中选择合适的阈值范围来区分气溶胶类型并非易事。取决于分类方案。无论使用哪种分类方案,结果都表明两个站点的粉尘气溶胶含量均不到10%。对于黑海沿岸的站点而言,从各种方案中选择合适的阈值范围来区分气溶胶类型并非易事。取决于分类方案。无论使用哪种分类方案,结果都表明两个站点的粉尘气溶胶含量均不到10%。对于黑海沿岸的站点而言,从各种方案中选择合适的阈值范围来区分气溶胶类型并非易事。

更新日期:2020-04-21
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