Ambient Microseism
geophysics · 36 views
geophysics
What It Is
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)
Interpretation
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_4 (-7.0z) — beyond what the standard bank predicts for it. It sits beside Earthquake P-wave in the atlas (standard-bank rank 26) — a neighbor conventional features miss.
What standard analysis sees
tail heaviness0.90
asymmetry0.10
occupancy0.33
short-range corr0.60
long-range memory0.55
spectral colour0.10
periodicity0.65
complexity0.55
time-irreversibility0.20
volatility clustering0.61
multifractality0.58
dimensionality0.65
nonstationarity0.98
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
AutoRegressive:ar_coef_4 | -7.0z | bank-miss 2.2σ |
AutoRegressive:ar_coef_3 | +6.7z | bank-miss 1.2σ |
AutoRegressive:ar_coef_6 | -6.2z | bank-miss 1.7σ |
AutoRegressive:ar_coef_7 | +5.2z | bank-miss 1.6σ |
AutoRegressive:ar_coef_2 | -4.5z | bank-miss 1.6σ |
AutoRegressive:ar_coef_8 | -3.9z | bank-miss 1.8σ |
Continued Fraction:log_khintchine_mean | +3.6z | bank-miss 1.5σ |
Spirograph:gear_rationality | -3.1z | bank-miss 1.3σ |
Composition
dtypefloat64
range[-1686, 2603]
unique values1607 / 16384
mean ± std564 ± 289
Render Gallery
Native > phase_plotraw
Native > timeseriesraw
Native > triple_latticeraw
Boltzmann > lag_map
Boltzmann > spin_grid
Cayley > default
Chladni > plate_bottom
Chladni > plate_top
_(centered)/signed_log_z/Ambient_Microseism.png)
Heisenberg (Nil) (centered) > signed_log_z
_(centered)/xy_path/Ambient_Microseism.png)
Heisenberg (Nil) (centered) > xy_path
Hodge–Laplacian > default
/barcode/Ambient_Microseism.png)
Inflation (Substitution) > barcode
/d_curve/Ambient_Microseism.png)
Inflation (Substitution) > d_curve
Information Theory > default
Julia Set > escape_histogram
Klein Bottle > default
Laplacian > default
Logarithmic Spiral > default
Möbius-S³ > mobius_cylinder
Möbius-S³ > s2_base_map
Ordinal Partition > default
/phi_spectrum/Ambient_Microseism.png)
Penrose (Quasicrystal) > phi_spectrum
Persistent Homology > barcode
Persistent Homology > h1_diagram
Predictability > default
Recurrence Quantification > default
Spectral Analysis > default
Spectral Graph > default
Spirograph > mode_spectrum
Spirograph > phasor_trajectory
Symplectic > flux_grid
Symplectic > phase_space
/default/Ambient_Microseism.png)
Ulam Spiral (Sacks) > default
/default/Ambient_Microseism.png)
Ulam Spiral (Square) > default
Visibility Graph > default
Wavelet Cascade > default
Atlas Position
| Nearest neighbor | Distance | |
|---|---|---|
| Accel Walk | 3.76 | cross-domain |
| EEG Resting | 3.83 | cross-domain |
| Earthquake P-wave | 4.00 |
Which Geometries Light Up
Ammann-Beenker (Octagonal) › Ammann-Beenker (Octagonal):convergent_profile | rank 1/298 | 0.9481 |
AutoRegressive › AutoRegressive:ar_coef_2 | rank 297/298 | -2.7887 |
Catch24 › Catch24:SC_FluctAnal_2_rsrangefit_50_1_logi_prop_r1 | rank 4/298 | 0.8160 |
Catch24 › Catch24:DN_OutlierInclude_p_001_mdrmd | rank 5/298 | 0.3940 |
Continued Fraction › Continued Fraction:log_khintchine_mean | rank 1/298 | 1.9644 |
Julia Set › Julia Set:escape_entropy | rank 1/298 | 4.5255 |
Ulam Spiral (Square) › Ulam Spiral (Square):radial_periodicity | rank 1/298 | 0.8748 |
in number_theoryDeep Earthquake P-wave →
← / → within domain · ⇧← / ⇧→ alphabetical · ⇧← / ⇧→ inside an open render = same view across sources