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PNAS

Marine biogenic source of atmospheric organic nitrogen in the subtropical North Atlantic

Overview of attention for article published in Proceedings of the National Academy of Sciences of the United States of America, January 2016
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  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (97th percentile)
  • Good Attention Score compared to outputs of the same age and source (75th percentile)

Mentioned by

news
9 news outlets
blogs
1 blog
twitter
3 X users
googleplus
1 Google+ user

Citations

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82 Dimensions

Readers on

mendeley
92 Mendeley
Title
Marine biogenic source of atmospheric organic nitrogen in the subtropical North Atlantic
Published in
Proceedings of the National Academy of Sciences of the United States of America, January 2016
DOI 10.1073/pnas.1516847113
Pubmed ID
Authors

Katye E. Altieri, Sarah E. Fawcett, Andrew J. Peters, Daniel M. Sigman, Meredith G. Hastings

Abstract

Global models estimate that the anthropogenic component of atmospheric nitrogen (N) deposition to the ocean accounts for up to a third of the ocean's external N supply and 10% of anthropogenic CO2 uptake. However, there are few observational constraints from the marine atmospheric environment to validate these findings. Due to the paucity of atmospheric organic N data, the largest uncertainties related to atmospheric N deposition are the sources and cycling of organic N, which is 20-80% of total N deposition. We studied the concentration and chemical composition of rainwater and aerosol organic N collected on the island of Bermuda in the western North Atlantic Ocean over 18 mo. Here, we show that the water-soluble organic N concentration ([WSON]) in marine aerosol is strongly correlated with surface ocean primary productivity and wind speed, suggesting a marine biogenic source for aerosol WSON. The chemical composition of high-[WSON] aerosols also indicates a primary marine source. We find that the WSON in marine rain is compositionally different from that in concurrently collected aerosols, suggesting that in-cloud scavenging (as opposed to below-cloud "washout") is the main contributor to rain WSON. We conclude that anthropogenic activity is not a significant source of organic N to the marine atmosphere over the North Atlantic, despite downwind transport from large pollution sources in North America. This, in conjunction with previous work on ammonium and nitrate, leads to the conclusion that only 27% of total N deposition to the global ocean is anthropogenic, in contrast to the 80% estimated previously.

X Demographics

X Demographics

The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 92 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 2 2%
France 1 1%
Canada 1 1%
South Africa 1 1%
Unknown 87 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 18 20%
Student > Ph. D. Student 17 18%
Student > Bachelor 10 11%
Student > Master 8 9%
Student > Doctoral Student 8 9%
Other 19 21%
Unknown 12 13%
Readers by discipline Count As %
Environmental Science 24 26%
Earth and Planetary Sciences 22 24%
Chemistry 15 16%
Agricultural and Biological Sciences 7 8%
Biochemistry, Genetics and Molecular Biology 4 4%
Other 4 4%
Unknown 16 17%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 73. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 February 2016.
All research outputs
#558,615
of 24,625,114 outputs
Outputs from Proceedings of the National Academy of Sciences of the United States of America
#9,801
of 101,438 outputs
Outputs of similar age
#10,114
of 404,045 outputs
Outputs of similar age from Proceedings of the National Academy of Sciences of the United States of America
#209
of 840 outputs
Altmetric has tracked 24,625,114 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 97th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 101,438 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 38.8. This one has done particularly well, scoring higher than 90% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 404,045 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 97% of its contemporaries.
We're also able to compare this research output to 840 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 75% of its contemporaries.