IU.ANMO long-period vertical (1 sps) --- ocean-generated microseism noise at 0.1-0.3 Hz, 6-hour quiet period with seasonal/storm modulation (IRIS CC0)
Standard analysis sees: heavy-tailed; left-skewed; red spectrum (low-frequency / 1-over-f power); nonstationary / drifting. The atlas finds no named structure, but the source is distinctively extreme on AutoRegressive:ar_coef_2 (-4.3z) — beyond what the standard bank predicts for it. It sits beside Earthquake P-wave in the atlas (standard-bank rank 20) — a neighbor conventional features miss.
AutoRegressive:ar_coef_2 | -4.3z | bank-miss 1.6σ |
Dodecagonal (Stampfli):pisot_triplet_coherence | +4.1z | bank-miss 1.4σ |
Continued Fraction:log_khintchine_mean | +3.5z | bank-miss 1.6σ |
Ulam Spiral (Square):polynomial_concentration | +2.3z | bank-miss 1.7σ |









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| Nearest neighbor | Distance | |
|---|---|---|
| EEG Resting | 3.85 | cross-origin |
| Earthquake P-wave | 3.94 | |
| EEG Eyes Closed | 4.11 | cross-origin |
Ammann-Beenker (Octagonal) › Ammann-Beenker (Octagonal):convergent_profile | rank 1/307 | 0.9489 |
AutoRegressive › AutoRegressive:ar_coef_2 | rank 306/307 | -2.7887 |
Catch24 › Catch24:SC_FluctAnal_2_rsrangefit_50_1_logi_prop_r1 | rank 2/307 | 0.8160 |
Catch24 › Catch24:DN_OutlierInclude_p_001_mdrmd | rank 3/307 | 0.3714 |
Continued Fraction › Continued Fraction:log_khintchine_mean | rank 2/307 | 1.9653 |
Dodecagonal (Stampfli) › Dodecagonal (Stampfli):pisot_triplet_coherence | rank 2/307 | 0.5807 |
Julia Set › Julia Set:escape_entropy | rank 1/307 | 4.5267 |
Level Statistics › Level Statistics:wd_classification | rank 4/307 | 0.2684 |
Möbius-S³ › Möbius-S³:sector_transition_entropy | rank 5/307 | 0.6098 |
Ulam Spiral (Square) › Ulam Spiral (Square):radial_dispersion | rank 1/307 | 0.8887 |