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  • AGU (American Geophysical Union)  (1)
  • Berlin, Heidelberg : Springer  (1)
  • 1
    Online Resource
    Online Resource
    Berlin, Heidelberg : Springer
    Keywords: Geography ; Earth Sciences ; Marine Sciences ; Freshwater. ; Geography ; Environmental chemistry ; Marine Sciences ; Environmental chemistry ; Climatology. ; Physical geography. ; Water. ; Hydrology. ; Aufsatzsammlung ; Meer ; Atmosphäre ; Wechselwirkung ; Treibhausgas ; Spurengas ; Aerosol ; Meer ; Atmosphäre ; Wechselwirkung ; Treibhausgas ; Spurengas ; Aerosol
    Description / Table of Contents: Chapter 1: Short-lived trace gases in the surface ocean and the atmosphere -- Chapter 2: Transfer across the air-sea interface -- Chapter 3: Air-sea interactions of natural long-lived greenhouse gases (CO2, N2O, CH4) in a changing climate -- Chapter 4: Ocean-Atmosphere interactions of particles -- Chapter 5: Perspectives and Integration in SOLAS science
    Type of Medium: Online Resource
    Pages: Online-Ressource (LI, 315 p. 181 illus., 162 illus. in color, online resource)
    ISBN: 9783642256431
    Series Statement: Springer Earth System Sciences
    RVK:
    Language: English
    Note: Chapter 1: Short-lived trace gases in the surface ocean and the atmosphereChapter 2: Transfer across the air-sea interface -- Chapter 3: Air-sea interactions of natural long-lived greenhouse gases (CO2, N2O, CH4) in a changing climate -- Chapter 4: Ocean-Atmosphere interactions of particles -- Chapter 5: Perspectives and Integration in SOLAS science.
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  • 2
    Publication Date: 2020-11-04
    Description: The global tropospheric budget of gaseous and particulate non-methane organic matter (OM) is re-examined to provide a holistic view of the role that OM plays in transporting the essential nutrients nitrogen and phosphorus to the ocean. A global 3-dimensional chemistry-transport model was used to construct the first global picture of atmospheric transport and deposition of the organic nitrogen (ON) and organic phosphorus (OP) that are associated with OM, focusing on the soluble fractions of these nutrients. Model simulations agree with observations within an order of magnitude. Depending on location, the observed water soluble ON fraction ranges from similar to 3% to 90% (median of similar to 35%) of total soluble N in rainwater; soluble OP ranges from similar to 20-83% (median of similar to 35%) of total soluble phosphorus. The simulations suggest that the global ON cycle has a strong anthropogenic component with similar to 45% of the overall atmospheric source (primary and secondary) associated with anthropogenic activities. In contrast, only 10% of atmospheric OP is emitted from human activities. The model-derived present-day soluble ON and OP deposition to the global ocean is estimated to be similar to 16 Tg-N/yr and similar to 0.35 Tg-P/yr respectively with an order of magnitude uncertainty. Of these amounts similar to 40% and similar to 6%, respectively, are associated with anthropogenic activities, and 33% and 90% are recycled oceanic materials. Therefore, anthropogenic emissions are having a greater impact on the ON cycle than the OP cycle; consequently increasing emissions may increase P-limitation in the oligotrophic regions of the world's ocean that rely on atmospheric deposition as an important nutrient source.
    Type: Article , PeerReviewed
    Format: text
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