alexa Biogeochemical implications of increased mineral particleconcentrations in surface waters of the northwestern North Pacificduring an Asian dust event
Geology & Earth Science

Geology & Earth Science

Journal of Oceanography and Marine Research

Author(s): Yoko Iwamoto, Keiya Yumimoto, Mitsuhiro Toratani, Atsushi Tsuda, Kazuhiko Miura

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Simultaneous observations were made in the marineatmospheric boundary layer and surface ocean duringspring 2007 to invest igate pot ential impacts of Asian duston a semi‐ pelagic region of the northwestern NorthPacific. The results suggest that mineral dust aerosolswere scavenged by sea fog, and their deposition to theocean increased the particle concentration in surfaceseawater. The atmospheric input of mineral dust to theocean surface from t his event was calculated to be 40 to680 mg m− 2event− 1. A general relationship for thesolubilityofironfromdustparticlesledtoanestimateof20 to 330 mgm− 2for the amount of bio‐available irondelivered during the dust event. This input of bio‐availableiron is comparable to total dissolved iron added d uring aniron fertilization experiment in the northwestern NorthPacific in which an enhancement of primary production wasobserved .

This article was published in GEOPHYSICAL RESEARCH LETTERS and referenced in Journal of Oceanography and Marine Research

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