Effect of Atmospheric Deposition on Marine Biogeochemical Cycles and Primary Production over the Marginal Seas in East Asia

• Published in: Bulletin on Coastal Oceanography Vol. 50; no. 1; pp. 23 - 38
• Main Author: Furutani, Hiroshi
• Format: Journal Article
• Language: Japanese
• Published: Tokyo Coastal Oceanography Research Committee, the Oceanographic Society of Japan 2012
• Subjects: Aerosols; Atmospheric chemistry; Biogeochemical cycle; Gases; Marine; Primary production; INW, Asia, East
• ISSN: 1342-2758; 2434-4036
• DOI: 10.32142/engankaiyo.50.1_23

The effect of atmospheric deposition（aerosols and gases）on marine biogeochemical cycles and primary production over the marginal seas in East Asia is reviewed. East Asia is a unique region where both natural and anthropogenic atmospheric substances, for example, Kosa aerosol（dust）and anthropogenic aerosols／trace gases emitted mainly from fossil fuel combustion, co-exist over the region, in addition to a frequent occurrence of nutrient deficient conditions at the surface of the marginal seas. These atmospheric substances are transported long distance and deposited gradually onto the ocean surface, and they play important roles in bringing terrestrial matter to the marginal sea region and stimulating marine primary production in the region, in particular in nutrient deficient conditions. In this review, sources, atmospheric concentrations, and regional distributions of marine nutrients（nitrogen, phosphorus, and iron）in atmospheric aerosols and trace gases are reviewed and the effect of their deposition on the ocean surface, as related to marine primary production, is reviewed.