Atmospheric iron in Chinese marginal seas and the Northwest Pacific:A review
The research progress of iron in marine aerosol in Chinese marginal seas and the Northwest Pacific Ocean in recent 20 years was reviewed.First,the development history of iron emission inventory,from natural dust source to anthropogenic sources was introduced,including both total Fe and soluble Fe.Second,the latest progress of the measurement methods and source apportionment techniques for Fe in marine aerosol was discussed,with an emphasis on the importance of online measurement of total Fe and soluble Fe,which was the key for obtaining the high spatiotemporal distribution of Fe in marine aerosol.In addition,this study pointed out that the new emerging iron isotope analysis technique could be used for quantitative apportionment of iron sources,and the combination of online measurements with receptor models of source apportionment was a new way to provide quantitative understanding of iron sources.Finally,the impacts of iron deposition on marine ecology and climate were summarized.Studies had revealed that atmospheric iron deposition could significantly stimulate phytoplankton growth,but large uncertainties remained regarding its climate effects quantification.Future research was needed on marine aerosol Fe measurement data accumulation,in-depth analysis of related mechanisms of iron chemistry,and the integration between atmospheric and oceanic models.
万方数据
维普
