Calculate sound speed in [m/s].
temperature [deg C]
salinity [PSU, part per thousand]
pressure [dbars]
Source of formula used to calculate sound speed.
“Mackenzie” (default) uses the formula from Mackenzie 1981
(see Notes below) as implemented in arlpy
package.
“AZFP” uses the formula supplied in the AZFP Matlab code.
Mackenzie KV (1981) Nine‐term equation for sound speed in the oceans. The Journal of the Acoustical Society of America, 70(3), 807–812. https://doi.org/10.1121/1.386920 The ranges of validity encompass the following: temperature −2 to 30 °C, salinity 30 to 40 ppt, and depth 0 to 8000 m.