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Earth, wind, fire, and pollution: aerosol nutrient sources and impacts on ocean biogeochemistry


Hamilton, DS and Perron, MMG and Bond, TC and Bowie, AR and Buchholz, RR and Guieu, C and Ito, A and Maenhaut, W and Myriokefalitakis, S and Olgun, N and Rathod, SD and Schepanski, K and Tagliabue, A and Wagner, R and Mahowald, NM, Earth, wind, fire, and pollution: aerosol nutrient sources and impacts on ocean biogeochemistry, Annual Review of Marine Science, 14 pp. 303-330. ISSN 1941-1405 (2022) [Refereed Article]

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Copyright 2022 posted with permission from the Annual Review of Marine Science, Volume 14 by Annual Reviews,

DOI: doi:10.1146/annurev-marine-031921-013612


A key Earth system science question is the role of atmospheric deposition in supplying vital nutrients to the phytoplankton that form the base of marine food webs. Industrial and vehicular pollution, wildfires, volcanoes, biogenic debris, and desert dust all carry nutrients within their plumes throughout the globe. In remote ocean ecosystems, aerosol deposition represents an essential new source of nutrients for primary production. The large spatiotemporal variability in aerosols from myriad sources combined with the differential responses of marine biota to changing fluxes makes it crucially important to understand where, when, and how much nutrients from the atmosphere enter marine ecosystems. This review brings together existing literature, experimental evidence of impacts, and new atmospheric nutrient observations that can be compared with atmospheric and ocean biogeochemistry modeling. We evaluate the contribution and spatiotemporal variability of nutrient-bearing aerosols from desert dust, wildfire, volcanic, and anthropogenic sources, including the organic component, deposition fluxes, and oceanic impacts.

Item Details

Item Type:Refereed Article
Keywords:mineral dust, fires, volcanoes, phosphate, soluble iron, ocean biogeochemistry
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Chemical oceanography
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Measurement and assessment of marine water quality and condition
UTAS Author:Perron, MMG (Miss Morgane Perron)
UTAS Author:Bowie, AR (Professor Andrew Bowie)
ID Code:150205
Year Published:2022
Funding Support:Australian Research Council (FT130100037)
Web of Science® Times Cited:14
Deposited By:Oceans and Cryosphere
Deposited On:2022-06-02
Last Modified:2023-02-08
Downloads:2 View Download Statistics

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