CTBTO 2026Evidence & methods
← Inputs
Tanker · 183 m · 12.1 knJOMOPANS–ECHO · 10–100 Hz
145150155160165170150155160165170175180Spectral density → decidecade band levelSL density (dB re 1 µPa² m²/Hz)Band SL (dB re 1 µPa m)1030507090100Frequency (Hz)
63 Hz162.3 dB SL+ 11.6 dB for 14.56 Hz= 173.9 dB SL by band

Each bottom-up delta points to its band-level shelf; the selected one is emphasized with the teal integration area. The orange region is the source model's approximate ±6 dB scatter.

Details
Type
derived.source_level_spectrum
Instance
sl-spectrum.jomopans-echo.tanker-183m-12p1kn.10-100hz.v1
Model definition
sl.jomopans_echo
Bound inputs
Tanker · 183 m · 12.1 kn
Spectral display
256 log-spaced display frequencies plus every retained analysis frequency
Band convention
Exact base-10 decidecade edges; rounded nominal centre labels; locally constant spectrum approximation
Context & definitions
Throwaway prototype · derived.source_level_spectrum

Source level over frequency