Advanced search
1 file | 646.52 KB Add to list

Stable isotopes measurements reveal dual carbon pools contributing to organic matter enrichment in marine aerosol

Author
Organization
Abstract
Stable carbon isotope ratios in marine aerosol collected over the Southern Indian Ocean revealed delta C-13 values ranging from -20.0% to -28.2%. The isotope ratios exhibited a strong correlation with the fractional organic matter (OM) enrichment in sea spray aerosol. The base-level isotope ratio of -20.0% is characteristic of an aged Dissolved Organic Matter (DOM) pool contributing a relatively homogeneous background level of DOM to oceanic waters. The range of isotope ratios, extending down to -28.2%, is characteristic of more variable, stronger, and fresher Particulate Organic Matter (POM) pool driven by trophic level interactions. We present a conceptual dual-pool POM-DOM model which comprises a 'young' and variable POM pool which dominates enrichment in sea-spray and an 'aged' but invariant DOM pool which is, ultimately, an aged end-product of processed 'fresh' POM. This model is harmonious with the preferential enrichment of fresh colloidal and nano-gel lipid-like particulate matter in sea spray particles and the observed depleted delta C-13 ratio resulting from isotope equilibrium fractionation coupled with enhanced plankton photosynthesis in cold water (-2 degrees C to + 8 degrees C). These results re-assert the hypothesis that OM enrichment in sea-spray is directly linked to primary production and, consequently, can have implications for climate-aerosol-cloud feedback systems.
Keywords
SEA SPRAY AEROSOL, PHOTOSYNTHESIS, PHYTOPLANKTON, FRACTIONATION, ATMOSPHERE, ORIGIN

Downloads

  • srep36675.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 646.52 KB

Citation

Please use this url to cite or link to this publication:

MLA
Ceburnis, Darius et al. “Stable Isotopes Measurements Reveal Dual Carbon Pools Contributing to Organic Matter Enrichment in Marine Aerosol.” SCIENTIFIC REPORTS 6 (2016): n. pag. Print.
APA
Ceburnis, D., Masalaite, A., Ovadnevaite, J., Garbaras, A., Remeikis, V., Maenhaut, W., Claeys, M., et al. (2016). Stable isotopes measurements reveal dual carbon pools contributing to organic matter enrichment in marine aerosol. SCIENTIFIC REPORTS, 6.
Chicago author-date
Ceburnis, Darius, Agne Masalaite, Jurgita Ovadnevaite, Andrius Garbaras, Vidmantas Remeikis, Willy Maenhaut, Magda Claeys, Jean Sciare, Dominique Baisnée, and Colin D O’Dowd. 2016. “Stable Isotopes Measurements Reveal Dual Carbon Pools Contributing to Organic Matter Enrichment in Marine Aerosol.” Scientific Reports 6.
Chicago author-date (all authors)
Ceburnis, Darius, Agne Masalaite, Jurgita Ovadnevaite, Andrius Garbaras, Vidmantas Remeikis, Willy Maenhaut, Magda Claeys, Jean Sciare, Dominique Baisnée, and Colin D O’Dowd. 2016. “Stable Isotopes Measurements Reveal Dual Carbon Pools Contributing to Organic Matter Enrichment in Marine Aerosol.” Scientific Reports 6.
Vancouver
1.
Ceburnis D, Masalaite A, Ovadnevaite J, Garbaras A, Remeikis V, Maenhaut W, et al. Stable isotopes measurements reveal dual carbon pools contributing to organic matter enrichment in marine aerosol. SCIENTIFIC REPORTS. 2016;6.
IEEE
[1]
D. Ceburnis et al., “Stable isotopes measurements reveal dual carbon pools contributing to organic matter enrichment in marine aerosol,” SCIENTIFIC REPORTS, vol. 6, 2016.
@article{8524713,
  abstract     = {Stable carbon isotope ratios in marine aerosol collected over the Southern Indian Ocean revealed delta C-13 values ranging from -20.0% to -28.2%. The isotope ratios exhibited a strong correlation with the fractional organic matter (OM) enrichment in sea spray aerosol. The base-level isotope ratio of -20.0% is characteristic of an aged Dissolved Organic Matter (DOM) pool contributing a relatively homogeneous background level of DOM to oceanic waters. The range of isotope ratios, extending down to -28.2%, is characteristic of more variable, stronger, and fresher Particulate Organic Matter (POM) pool driven by trophic level interactions. We present a conceptual dual-pool POM-DOM model which comprises a 'young' and variable POM pool which dominates enrichment in sea-spray and an 'aged' but invariant DOM pool which is, ultimately, an aged end-product of processed 'fresh' POM. This model is harmonious with the preferential enrichment of fresh colloidal and nano-gel lipid-like particulate matter in sea spray particles and the observed depleted delta C-13 ratio resulting from isotope equilibrium fractionation coupled with enhanced plankton photosynthesis in cold water (-2 degrees C to + 8 degrees C). These results re-assert the hypothesis that OM enrichment in sea-spray is directly linked to primary production and, consequently, can have implications for climate-aerosol-cloud feedback systems.},
  articleno    = {36675},
  author       = {Ceburnis, Darius and Masalaite, Agne and Ovadnevaite, Jurgita and Garbaras, Andrius and Remeikis, Vidmantas and Maenhaut, Willy and Claeys, Magda and Sciare, Jean and Baisnée, Dominique and O’Dowd, Colin D},
  issn         = {2045-2322},
  journal      = {SCIENTIFIC REPORTS},
  keywords     = {SEA SPRAY AEROSOL,PHOTOSYNTHESIS,PHYTOPLANKTON,FRACTIONATION,ATMOSPHERE,ORIGIN},
  language     = {eng},
  pages        = {6},
  title        = {Stable isotopes measurements reveal dual carbon pools contributing to organic matter enrichment in marine aerosol},
  url          = {http://dx.doi.org/10.1038/srep36675},
  volume       = {6},
  year         = {2016},
}

Altmetric
View in Altmetric
Web of Science
Times cited: