Explanation of the Image...

This image created with the spectrum intercept algorithm is based on the dynamical system characterized by a pair of coupled equations,
where x' and y' are the first derivative of x and y with respect to time, t.

The state variables here are x and y. The domain of this image in the map of possible states for this system is,
(-0.5, -3.3)/(0.6795, -4.5)

The parameter values are,
a=10, b=0.7, c=-1, d=0.25, ω=2, and φ=0.

This image differs from the Updraft image by ω=3.14 rather than 2 and the domain being different.