Atmospheric Science, Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, 41296, Sweden.
Institute for Atmospheric and Environmental Sciences, J. W. Goethe-University, Frankfurt am Main, Frankfurt, 60438, Germany.
Sci Rep. 2018 Jan 18;8(1):1111. doi: 10.1038/s41598-018-19297-y.
Shipping contributes primary and secondary emission products to the atmospheric aerosol burden that have implications for climate, clouds, and air quality from regional to global scales. In this study we exam the potential impact of ship emissions with regards to ice nucleating particles. Particles that nucleate ice are known to directly affect precipitation and cloud microphysical properties. We have collected and analyzed particles for their ice nucleating capacity from a shipping channel outside a large Scandinavia port. We observe that ship plumes amplify the background levels of ice nucleating particles and discuss the larger scale implications. The measured ice nucleating particles suggest that the observed amplification is most likely important in regions with low levels of background particles. The Arctic, which as the sea ice pack declines is opening to transit and natural resource exploration and exploitation at an ever increasing rate, is highlighted as such a region.
航运向大气气溶胶负荷中排放一次和二次排放产物，这些产物对气候、云和空气质量具有从区域到全球范围的影响。在这项研究中，我们考察了船舶排放物对成冰粒子的潜在影响。成冰粒子是已知的直接影响降水和云微物理性质的粒子。我们从斯堪的纳维亚半岛一个大型港口外的航运通道中收集和分析了具有成冰能力的粒子。我们观察到，船舶羽流放大了背景水平的成冰粒子，并讨论了更大范围的影响。测量到的成冰粒子表明，观察到的放大效应在背景粒子水平较低的区域很可能更为重要。北极地区的海冰减少，正在以越来越快的速度向过境和自然资源勘探与开发开放，该地区就是这样一个区域。
