Atmospheric deposition of inorganic nutrients to the Western North Pacific Ocean SCIE SCOPUS

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Title
Atmospheric deposition of inorganic nutrients to the Western North Pacific Ocean
Author(s)
Seok, Min-Woo; Kim, Dongseon; Park, Geun-Ha; Lee, Kitack; Kim, Tae-Hoon; Jung, Jinyoung; Kim, Kitae; Park, Ki-Tae; Kim, Yeo-Hun; Mo, Ahra; Park, Seunghee; Ko, Young Ho; Kang, Jeong Won; KIM, Haryun; Kim, Tae-Wook
KIOST Author(s)
Kim, Dong Seon(김동선)Kang, Jeong Won(강정원)KIM, Ha Ryun(김하련)
Alternative Author(s)
김동선; 박근하; 김여훈; 강정원; 김하련
Publication Year
2021-11-01
Abstract
We evaluated the potential impacts of atmospheric deposition on marine productivity and inorganic carbon chemistry in the northwestern Pacific Ocean (8–39°N, 125–157°E). The nutrient concentration in atmospheric total suspended particles decreased exponentially with increasing distance from the closest land-mass (Asia), clearly revealing anthropogenic and terrestrial contributions. The predicted mean depositional fluxes of inorganic nitrogen were approximately 34 and 15 μmol m−2 d−1 to the west and east of 140°E, respectively, which were at least two orders of magnitude greater than the inorganic phosphorus flux. On average, atmospheric particulate deposition would support 3–4% of the net primary production along the surveyed tracks, which is equivalent to ~2% of the dissolved carbon increment caused by the penetration of anthropogenic CO2. Our observations generally fell within the ranges observed over the past 18 years, despite an increasing trend of atmospheric pollution in the source regions during the same period, which implies high temporal and spatial variabilities of atmospheric nutrient concentration in the study area. Continued atmospheric anthropogenic nitrogen deposition may alter the relative abundances of nitrogen and phosphorus.
ISSN
0048-9697
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41465
DOI
10.1016/j.scitotenv.2021.148401
Bibliographic Citation
SCIENCE OF THE TOTAL ENVIRONMENT, v.793, 2021
Publisher
Elsevier BV
Subject
EAST CHINA SEA; NITROGEN DEPOSITION; ANTHROPOGENIC NITROGEN; TRACE-METALS; ASIAN DUST; HETEROGENEOUS REACTIONS; PHYTOPLANKTON GROWTH; ORGANIC NITROGEN; ATLANTIC-OCEAN; MINERAL DUST
Keywords
Marine productivity; Dry deposition; Air-mass backward trajectory; Total suspended particles
Type
Article
Language
English
Document Type
Article
Publisher
Elsevier BV
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