CTBTO 2026Evidence & methods
← Input sets

H01W-2026-08-24_2026-08-26-v1

Hydrophones
3
Hours
48
Bands
11
Values
1,410

Combinedhydrophone power mean

Rows are discrete decidecade bands and columns are UTC hours. Blank cells are unavailable.1012.516202531.54050638010024 Aug6:0012:0018:0025 Aug6:0012:0018:0026 AugBand centre, Hz

H01W1

Rows are discrete decidecade bands and columns are UTC hours. Blank cells are unavailable.1012.516202531.54050638010024 Aug6:0012:0018:0025 Aug6:0012:0018:0026 AugBand centre, Hz

H01W2

Rows are discrete decidecade bands and columns are UTC hours. Blank cells are unavailable.1012.516202531.54050638010024 Aug6:0012:0018:0025 Aug6:0012:0018:0026 AugBand centre, Hz

H01W3

Rows are discrete decidecade bands and columns are UTC hours. Blank cells are unavailable.1012.516202531.54050638010024 Aug6:0012:0018:0025 Aug6:0012:0018:0026 AugBand centre, Hz
80105 dB re 1 µPa unavailable
Selected UTC hour

2026-08-24 12:00 UTC

H01W1H01W2H01W3
80901001101012.516202531.540506380100Nominal decidecade centre, HzdB re 1 µPa
Selected table key2026-08-24 12:00 UTC · 63 Hzexact band 56.234–70.795 Hz
Combined92.5dB re 1 µPa · hydrophone power mean
H01W193.2dB re 1 µPa
H01W291.8dB re 1 µPa
H01W392.3dB re 1 µPa
How this summary was defined
Input
H01W-2026-08-24_2026-08-26-v1
Table key
hydrophone × hour_start_utc × display_centre_hz
Quantity
nominal decidecade band level
Units
dB re 1 µPa
Processing
hourly Welch band power on exact base-10 decidecade edges
Calibration standing
T1 nominal public full-response magnitude; not traceable calibration
Unavailable values
The 10 Hz band is not pressure-converted because its lower edge is below 10 Hz. The final package hour is response-edge-ineligible.
Claim limit
Observed soundscape summary only; no detection, direction, attribution, or prediction claim
Artifact represented
hourly-node-band-nominal-pressure.csv
Band semantics
Independent non-overlapping bands; the display does not interpolate between centres.
Context & definitions
Throwaway prototype · derived data

Observed band summary

A waveform package reduced to hourly energy in discrete frequency bands, separately for every stored hydrophone.