Atmospheric sea-salt aerosol concentrations are studied using both long-term observations and model simulations of Na+ at seven stations around the globe. Good agreement is achieved between observations and model predictions in the northern hemisphere. A stronger seasonal variation occurs in the high-latitude North Atlantic than in regions close to the equator and in high-latitude southern hemisphere. Generally, concentrations are higher for both boreal and austral winters. With the model, the production flux and removal flux at the atmosphere-ocean interface was calculated and used to estimate the global sea-salt budget. The flux also shows seasonal variation similar to that of sea-salt concentration. Depending on the geographic location, the model predicts that dry deposition accounts for 60-70% of the total sea-salt removed from the atmosphere while in-cloud and below-cloud precipitation scavenging accounts for about 1% and 28-39% of the remainder, respectively. The total amount of sea-salt aerosols emitted from the world oceans to the atmosphere is estimated to be in the vicinity of 1.17 X 10(16) g yr(-1). Approximately 99% of the sea-salt aerosol mass generated by wind falls back to the sea with about 1-2% remaining in the atmosphere to be exported from the original grid square (300 x 300 km). Only a small portion of that exported (similar to 4%) is associated with submicron particles that are likely to undergo long-range transport. [References: 20]
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机译：使用长期观测和全球7个站Na +的模型模拟研究了大气海盐气溶胶浓度。北半球的观测结果与模型预测之间取得了很好的一致性。与靠近赤道和高纬度南半球的地区相比，高纬度北大西洋的季节变化更强烈。通常，北方和南方冬季的浓度都较高。利用该模型，计算了大气-海洋界面的生产通量和去除通量，并将其用于估算全球海盐预算。通量还显示出类似于海盐浓度的季节变化。根据地理位置，该模型预测，干沉降占大气层中去除的海盐总量的60-70％，而云内和云层以下的降水清除约占大气中海盐的1％和28-39％。其余的。从世界海洋排放到大气中的海盐气溶胶总量估计在1.17 X 10（16）g yr（-1）附近。由风产生的海盐气溶胶质量中约有99％会落回到海中，而大气中约有1-2％会从原始网格正方形（300 x 300 km）中输出。出口的一小部分（约占4％）与可能会进行远距离运输的亚微米颗粒有关。 [参考：20]
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