mean_absorption

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Calculate the mean absorption in salt water over a frequency range.

a = mean_absorption(freq,r,depth,Ttab) % Matlab & Octave
a <- mean_absorption(freq, r, depth, Ttab) # R

Description

Calculate the mean absorption in salt water over a frequency range.

Input var	Description	Default value
freq	specifies the frequency range, freq = [fmin,fmax] in Hz. For a single frequency, use a scalar value for freq.	Hz
r	is the path (slant) length in meters	m
depth	is the depths covered by the path. This can be a single value for a horizontal path or a two component vector i.e., depth=[dmax,dmin] for a path that extends between two depths.	N/A
Ttab	is the temperature (a scalar) in degrees C or specifies a temperature profile Ttab = [depth, tempr] where depth and tempr are equal-sized column vectors. Default value is an isothermal profile of 13 degrees.	Celsius

Output var	Description	Units
a	is the mean sound absorption over the path in dB.	dB/m

mean_absorption([25e3 60e3],1000,[0 700])  
a = 7.7302 % dB/m

mean_absorption(c(25e3, 60e3), 1000, c(0, 700))  
a = 7.728188 # dB/m

bugs@animaltags.org Last modified: 19 July 2017