Aerosol optical depth (AOD), black carbon (BC) mass concentration, aerosol size, along with wind parameters, were derived during Southern Ocean expeditions (SOE) 7 and 8 carried out in austral summer of 2013 and 2015, with an aim to analyse the effect of aerosol on incoming solar radiation. The data were complemented with trace metals from aerosol samples of SOE-6 conducted in 2012. The AOD spectra north of 40^oS followed Angstrom turbidity formulae while those in the south deviated from it. A statistically significant correlation (R²) of 0.79 (P « 0.0001) between the differences of AOD₄₄₀ estimated from an Optical Properties of Aerosol and Cloud (OPAC) model and measured in situ and chlorophyll-a concentration revealed phytoplankton as a significant source of fine mode aerosols. Analysis of ten years of MODIS derived fine mode particle concentration indicated an increase as season advanced from winter to summer and a subsequent decrease towards the following winter, clearly showing a contribution from phytoplankton. BC mass concentration was found to be around 80 ng m⁻³. Prevalence of trace metals such as Cu, Cd and Zn and the anions SO₄^-2 and NO₃^-1 were observed in this part of the world ocean. An inverse relation was observed between Cu and phytoplankton derived SO₄^-2, indicating the detrimental effect of Cu on fine mode sulphate aerosols which are as significant as cloud condensation nuclei (CCN). The aerosol radiative forcing was found to be between 25 and 28 W m^-2 to the north of the ITCZ while it was around 2–6 W m⁻² in the south. The associated heating rate was from 0.05 to 0.09 and from 0.01 to 0.02 K day⁻¹, respectively. The study revealed an increase in black carbon due to ship emissions. An increase in BC over the Southern Ocean atmosphere may have a far-reaching effect on the cloud formation and regional albedo.

于2013年和2015年夏季进行的南大洋考察（SOE）7和8期间，得出了气溶胶光学深度（AOD），黑碳（BC）质量浓度，气溶胶尺寸以及风参数。气溶胶对入射太阳辐射的影响。该数据还补充了2012年进行的SOE-6气溶胶样品中的痕量金属。40 ^o S以北的AOD光谱遵循Angstrom浊度公式，而南部的AOD光谱则偏离了该公式。从气溶胶和云的光学性质（OPAC）模型估算并就地测量和叶绿素a估算的AOD ₄₄₀差异之间的统计学显着相关性（R ²）为0.79（P«0.0001）浓度表明浮游植物是优良模式气溶胶的重要来源。对10年MODIS推导的精细模式颗粒物浓度的分析表明，从冬季到夏季，随着季节的增加而增加，而在随后的冬季逐渐减少，这清楚地表明了浮游植物的贡献。发现BC质量浓度为约80ngm ^-3。在世界海洋的这一部分，观察到了诸如铜，镉和锌等微量金属的流行以及阴离子SO ₄ ^-2和NO ₃ ^-1的流行。铜与浮游植物来源的SO ₄ ^-2之间存在反比关系，表明铜对精细模式的硫酸盐气溶胶的有害作用，其与云凝结核（CCN）一样重要。发现气溶胶辐射强迫在ITCZ北部为25至28 W m ^-2之间，而在南部为2–6 W m ^-2左右。相关的加热速率分别为0.05至0.09和0.01至0.02K day ^-1。研究显示，由于船舶排放，黑碳有所增加。卑诗省南部海洋大气的增加可能对云的形成和区域反照率产生深远影响。