@article{fdi:010077489,
  title = {{O}bservability of laminar bidimensional fluid flows seen as autonomous chaotic systems},
  author = {{C}haro, {G}. {D}. and {S}ciamarella, {D}. and {M}angiarotti, {S}ylvain and {A}rtana, {G}. and {L}etellier, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{L}agrangian transport in the dynamical systems approach has so far been investigated disregarding the connection between the whole state space and the concept of observability. {K}ey issues such as the definitions of {L}agrangian and chaotic mixing are revisited under this light, establishing the importance of rewriting nonautonomous flow systems derived from a stream function in autonomous form, and of not restricting the characterization of their dynamics in subspaces. {T}he observability of {L}agrangian chaos from a reduced set of measurements is illustrated with two canonical examples: the {L}orenz system derived as a low-dimensional truncation of the {R}ayleigh-{B}enard convection equations and the driven double-gyre system introduced as a kinematic model of configurations observed in the ocean. {A} symmetrized version of the driven double-gyre model is proposed. {P}ublished under license by {AIP} {P}ublishing.},
  keywords = {},
  booktitle = {},
  journal = {{C}haos},
  volume = {29},
  numero = {12},
  pages = {art. 123126 [ 12 p.]},
  ISSN = {1054-1500},
  year = {2019},
  DOI = {10.1063/1.5120625},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077489},
}