specLvlGraph: Spectrum Level Graph and Marine Noise Level

In bioSNR: Bioacoustic Basic Operations with Decibels and the Passive Sonar Equation

Spectrum Level Graph and Marine Noise Level

Description

This function calculates the ambient noise level (NL; dB re. 1 microPa) in a deep-water marine environement.

Usage

specLvlGraph(freqBand, shipT = -1, seaState = -1, wSpeed = 0, boolR = TRUE)

Arguments

freqBand	The frequency band of interest
shipT	The intensity ship traffic in the area * 1 - 2 low ship traffic * 3-4-5 standard ship traffic * 6 - 7 heavy ship traffic * 8 - 9 intense ship traffic
seaState	The sea state as specified by the National Weather Service
wSpeed	The wind speed in miles per hour (mph)
boolR	Boolean of whether you want the value printed out in a string. Should be true for HW problems.

Value

The noise level (NL) in dB re. 1 microPa

Author(s)

Matthew Duggan, K. Lisa Yang Center for Conservation Bioacoustics, Cornell University.

References

Wenz, G. M. (1962). Acoustic ambient noise in the ocean: Spectra and sources. The Journal of the Acoustical Society of America, 34(12), 1936-1956.

Urick, R. J. (1975). Principles of underwater sound v.2.

Zimmer, W. M. (2011). Passive acoustic monitoring of cetaceans. Cambridge University Press.

Examples

specLvlGraph(c(28,33), ship=4,seaState = 1, wSpeed = 10, boolR = TRUE)

bioSNR documentation built on May 31, 2023, 5:23 p.m.