Increasing anthropogenic nitrogen in the North Pacific Ocean

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Author(s) Il-Nam, Kim, Kitack, Lee, Nicolas, Gruber, Karl, David M., Bullister, John L., Yang, Simon, Tae-Wook, Kim
Publication Type Journal Items, Publication Status: Published
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Title Increasing anthropogenic nitrogen in the North Pacific Ocean
Author(s) Il-Nam, Kim
Kitack, Lee
Nicolas, Gruber
Karl, David M.
Bullister, John L.
Yang, Simon
Tae-Wook, Kim
Journal or Series Title Science
Volume Number 346
Issue Number 6213
Start Page 1102
End Page 1106
ISSN 0036-8075
Publisher American Association for the Advancement of Science
Publication Place Washington, D.C.
Publication Date 2014-11-28
Abstract The recent increase in anthropogenic emissions of reactive nitrogen from northeastern Asia and the subsequent enhanced deposition over the extensive regions of the North Pacific Ocean (NPO) have led to a detectable increase in the nitrate (N) concentration of the upper ocean. The rate of increase of excess N relative to phosphate (P) was found to be highest (similar to 0.24 micromoles per kilogram per year) in the vicinity of the Asian source continent, with rates decreasing eastward across the NPO, consistent with the magnitude and distribution of atmospheric nitrogen deposition. This anthropogenically driven increase in the N content of the upper NPO may enhance primary production in this N-limited region, potentially leading to a long-term change of the NPO from being N-limited to P-limited.
DOI 10.1126/science.1258396
Additional Notes Received 7 July 2014, Accepted 3 November 2014
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03731
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NEBIS System Number 000037526
Source Database ID WOS-000345763400040
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  author = "Il-Nam, Kim and Kitack, Lee and Nicolas, Gruber and Karl, David M. and Bullister, John L. and Yang, Simon and Tae-Wook, Kim",
  title = "{I}ncreasing anthropogenic nitrogen in the {N}orth {P}acific {O}cean",
  journal = "Science",
  year = 2014,
  volume = "346",
  number = "6213",
  pages = "1102--1106",
  month = nov,

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