Profile:  Aerosol iron deposition is an important source of available iron for marine organisms, which promotes marine primary productivity and carbon dioxide absorption in iron-limited areas. An Earth system model is used to quantify the long-distance transport and deposition of iron-containing aerosols, but there is still great uncertainty in describing the concentration and solubility of iron. This report will introduce the progress of aerosol observation and numerical simulation of iron-containing minerals, and discuss how emission sources, chemical aging and aerosol microphysical properties affect the input of atmospheric soluble iron in different sea areas around the world.

Profile of the speaker: Liu Mingxu, researcher, doctoral supervisor and assistant professor of Peking University College of Environmental Science and Engineering. He graduated from the Ocean University of China with a bachelor's degree in 2014, and from Peking University with a doctor's degree in 2019. Then he worked as a postdoctoral researcher at Nagoya University, Japan, supported by the Special Fellow Program of the Japan Society for the Promotion of Science (JSPS Fellow). Liu Mingxu is mainly engaged in the research of aerosol chemical and physical processes and environmental effects, having published more than ten research papers in internationally renowned journals such as Nature Communications, PNAS, GRL and NPJCAS as the first author.