Global distribution and surface activity of macromolecules in offline simulations of marine organic chemistry

Verfasser / Beitragende:
[Oluwaseun Ogunro, Susannah Burrows, Scott Elliott, Amanda Frossard, Forrest Hoffman, Robert Letscher, J. Moore, Lynn Russell, Shanlin Wang, Oliver Wingenter]
Ort, Verlag, Jahr:
2015
Enthalten in:
Biogeochemistry, 126/1-2(2015-11-01), 25-56
Format:
Artikel (online)
ID: 605517460
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024 7 0 |a 10.1007/s10533-015-0136-x  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10533-015-0136-x 
245 0 0 |a Global distribution and surface activity of macromolecules in offline simulations of marine organic chemistry  |h [Elektronische Daten]  |c [Oluwaseun Ogunro, Susannah Burrows, Scott Elliott, Amanda Frossard, Forrest Hoffman, Robert Letscher, J. Moore, Lynn Russell, Shanlin Wang, Oliver Wingenter] 
520 3 |a Organic macromolecules constitute a high percentage of remote sea spray. They enter the atmosphere through adsorption onto bubbles followed by bursting at the ocean surface, and go on to influence the chemistry of the fine mode aerosol. We present a global estimate of mixed-layer macromolecular distributions, driven by offline marine systems model output. The approach permits estimation of oceanic concentrations and bubble film surface coverages for several classes of organic compound. Mixed layer levels are computed from the output of a global ocean ecodynamics model by relating the macromolecules to standard biogeochemical tracers. Steady state is assumed for labile forms, and for longer-lived components we rely on ratios to existing transported variables. Adsorption is then represented through conventional Langmuir isotherms, with equilibria deduced from laboratory analogs. Open water concentrations locally exceed one micromolar carbon for the total of proteins, polysaccharides and refractory heteropolycondensates. The shorter-lived lipids remain confined to regions of strong biological activity. Results are evaluated against available measurements for all compound types, and agreement is generally well within an order of magnitude. Global distributions are further estimated for both fractional coverage of bubble films at the air-water interface and the two-dimensional concentration excess. Overall, we show that macromolecular mapping provides a novel tool for the comprehension of oceanic surfactant patterns. These results may prove useful in planning field experiments and assessing the potential response of surface chemical behaviors to global change. 
540 |a The Author(s), 2015 
690 7 |a Organic macromolecules  |2 nationallicence 
690 7 |a Mixed layer distributions  |2 nationallicence 
690 7 |a Langmuir adsorption  |2 nationallicence 
690 7 |a Fractional coverage  |2 nationallicence 
690 7 |a Bubble films  |2 nationallicence 
690 7 |a Air-water interface  |2 nationallicence 
700 1 |a Ogunro  |D Oluwaseun  |u New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA  |4 aut 
700 1 |a Burrows  |D Susannah  |u Pacific Northwest National Laboratory, 99354, Richland, WA, USA  |4 aut 
700 1 |a Elliott  |D Scott  |u Los Alamos National Laboratory, 87545, Los Alamos, NM, USA  |4 aut 
700 1 |a Frossard  |D Amanda  |u Scripps Institution of Oceanography, 92093, La Jolla, CA, USA  |4 aut 
700 1 |a Hoffman  |D Forrest  |u Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA  |4 aut 
700 1 |a Letscher  |D Robert  |u University of California, 92617, Irvine, CA, USA  |4 aut 
700 1 |a Moore  |D J.  |u University of California, 92617, Irvine, CA, USA  |4 aut 
700 1 |a Russell  |D Lynn  |u Scripps Institution of Oceanography, 92093, La Jolla, CA, USA  |4 aut 
700 1 |a Wang  |D Shanlin  |u Los Alamos National Laboratory, 87545, Los Alamos, NM, USA  |4 aut 
700 1 |a Wingenter  |D Oliver  |u New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA  |4 aut 
773 0 |t Biogeochemistry  |d Springer International Publishing  |g 126/1-2(2015-11-01), 25-56  |x 0168-2563  |q 126:1-2<25  |1 2015  |2 126  |o 10533 
856 4 0 |u https://doi.org/10.1007/s10533-015-0136-x  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10533-015-0136-x  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ogunro  |D Oluwaseun  |u New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Burrows  |D Susannah  |u Pacific Northwest National Laboratory, 99354, Richland, WA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Elliott  |D Scott  |u Los Alamos National Laboratory, 87545, Los Alamos, NM, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Frossard  |D Amanda  |u Scripps Institution of Oceanography, 92093, La Jolla, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Hoffman  |D Forrest  |u Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Letscher  |D Robert  |u University of California, 92617, Irvine, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Moore  |D J.  |u University of California, 92617, Irvine, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Russell  |D Lynn  |u Scripps Institution of Oceanography, 92093, La Jolla, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D Shanlin  |u Los Alamos National Laboratory, 87545, Los Alamos, NM, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wingenter  |D Oliver  |u New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biogeochemistry  |d Springer International Publishing  |g 126/1-2(2015-11-01), 25-56  |x 0168-2563  |q 126:1-2<25  |1 2015  |2 126  |o 10533