Lorenz-96 atmospheric-dynamics ODE with N=4 variables and high forcing F=16 (required for chaos at small N). Observable is x_0(t). Attractor fractal dim ~2.5-3.
Standard analysis sees: smooth / autocorrelated; red spectrum (low-frequency / 1-over-f power); low-complexity (predictable, not noise-like); time-irreversible (slow rise, sharp collapse); volatility-clustering (bursty). The atlas finds no named structure, but the source is distinctively extreme on Bispectrum:coupling_frequency_centroid (-3.0z) — beyond what the standard bank predicts for it.
Bispectrum:coupling_frequency_centroid | -3.0z | bank-miss 1.4σ |








_(centered)/signed_log_z/Lorenz-96_N=4_F=16.png)
_(centered)/xy_path/Lorenz-96_N=4_F=16.png)

/barcode/Lorenz-96_N=4_F=16.png)
/d_curve/Lorenz-96_N=4_F=16.png)








/phi_spectrum/Lorenz-96_N=4_F=16.png)










/default/Lorenz-96_N=4_F=16.png)
/default/Lorenz-96_N=4_F=16.png)


| Nearest neighbor | Distance | |
|---|---|---|
| Lorenz-96 N=36 | 2.64 | |
| Lorenz-96 N=8 | 2.83 | |
| Halvorsen Attractor | 2.86 |
Bispectrum › Bispectrum:coupling_frequency_centroid | rank 296/298 | 0.2736 |