pub2001.bib

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@article{2001Icar..152..384L,
  author = {{Lebonnois}, S. and {Toublanc}, D. and {Hourdin}, F. and {Rannou}, P.
	},
  title = {{Seasonal Variations of Titan's Atmospheric Composition}},
  journal = {\icarus},
  year = 2001,
  volume = 152,
  pages = {384-406},
  abstract = {{In order to investigate seasonal variations of the composition of
Titan's low stratosphere, we developed a two-dimensional
(latitude-altitude) photochemical and transport model. Large-scale
advection, hidden in the vertical eddy diffusion for one-dimensional
models, is accounted for explicitly. Atmospheric dynamics is prescribed
using results of independent numerical simulations of the atmospheric
general circulation. Both the mean meridional transport and latitudinal
mixing by transient planetary waves are taken into account. Chemistry is
based on 284 reactions involving 40 hydrocarbons and nitriles.
Photodissociation rates are based on a three-dimensional description of
the ultraviolet flux. For most species, the model fits well the
latitudinal variations observed by Voyager I giving for the first time a
full and self-consistent interpretation of these observations. In
particular, the enrichment of the high northern latitudes is attributed
to subsidence during the winter preceeding the Voyager encounter.
Discrepancies are observed for C $_{2}$H $_{4}$, HC
$_{3}$N, and C $_{2}$N $_{2}$ and are attributed to
problems in the chemical scheme. Sensitivity to dynamical parameters is
investigated. The vertical eddy diffusion coefficient keeps an important
role for the upper atmosphere. The wind strength and horizontal eddy
diffusion strongly control the latitudinal behavior of the composition
in the low stratosphere, while mean concentrations appear to be
essentially controlled by chemistry.
}},
  doi = {10.1006/icar.2001.6632},
  adsurl = {https://ui.adsabs.harvard.edu/abs/2001Icar..152..384L},
  localpdf = {REF/2001Icar..152..384L.pdf},
  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}