The qualitative dynamics of a baroclinic flow experiment are studied by constructing phase space coordinates from a single time series. As the stress on the flow is increased we observe steady, periodic, quasiperiodic, and chaotic flow. The chaotic attractor we observe near the transition has the appearance of a thickened torus.
Farmer, J.D., Hart, J. & Weidman, P. (1982). 'A Phase Space Analysis of Baroclinic Flow.' Physics Letters, 91A(1), pp.22-24.