Publication Abstracts

Kanakidou et al. 2016

Kanakidou, M., S. Myriokefalitakis, N. Daskalakis, G. Fanourgakis, A. Nenes, A. Baker, K. Tsigaridis, and N. Mihalopoulos, 2016: Past, present and future atmospheric nitrogen deposition. J. Atmos. Sci., 73, no. 5, 2039-2047, doi:10.1175/JAS-D-15-0278.1.

Reactive nitrogen emissions into the atmosphere are increasing due to human activities, affecting nitrogen deposition to the surface that impacts the productivity of terrestrial and marine ecosystems. The present study uses an atmospheric chemistry transport model to calculate the global distribution of total nitrogen deposition, accounting for both its inorganic and organic fractions in gaseous and particulate phases. Present-day simulations suggest that the global nitrogen cycle has a strong anthropogenic component with about 60% of the total atmospheric source associated with anthropogenic activities, while about 20-25% of total N deposition is in the form of organic nitrogen. Almost a 3-fold increase has been calculated by the model for soluble N deposition fluxes due to increase in human activities from 1850 to present, reduced by 2-fold when only the deposition to the ocean is considered. Projections indicate significant changes in the chemical composition of N deposition with reduced compounds gaining importance relative to oxidized ones and in the regional distribution of the N deposition fluxes but not significant changes in the global total flux. Sensitivity simulations quantify the total soluble N deposition uncertainties due to the investigated model parameterizations to be within 5%, while the largest uncertainty is calculated for dissolved organic nitrogen deposition (25-30%). Main sources of uncertainties were found to be associated with the organic nitrogen sources, as well as the projected inorganic nitrogen emissions.

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BibTeX Citation

@article{ka06200a,
  author={Kanakidou, M. and Myriokefalitakis, S. and Daskalakis, N. and Fanourgakis, G. and Nenes, A. and Baker, A. and Tsigaridis, K. and Mihalopoulos, N.},
  title={Past, present and future atmospheric nitrogen deposition},
  year={2016},
  journal={J. Atmos. Sci.},
  volume={73},
  number={5},
  pages={2039--2047},
  doi={10.1175/JAS-D-15-0278.1},
}

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RIS Citation

TY  - JOUR
ID  - ka06200a
AU  - Kanakidou, M.
AU  - Myriokefalitakis, S.
AU  - Daskalakis, N.
AU  - Fanourgakis, G.
AU  - Nenes, A.
AU  - Baker, A.
AU  - Tsigaridis, K.
AU  - Mihalopoulos, N.
PY  - 2016
TI  - Past, present and future atmospheric nitrogen deposition
JA  - J. Atmos. Sci.
VL  - 73
IS  - 5
SP  - 2039
EP  - 2047
DO  - 10.1175/JAS-D-15-0278.1
ER  -

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