calc_absorption

echopype.utils.uwa.calc_absorptionfrequencytemperature=27salinity=35pressure=10pH=8.1sound_speed=Noneformula_source='AM'

Calculate sea water absorption in units [dB/m].

ParametersReturns
Notes

Ainslie MA, McColm JG. (1998). A simplified formula for viscous and chemical absorption in sea water. The Journal of the Acoustical Society of America, 103(3), 1671–1672. https://doi.org/10.1121/1.421258

Francois RE, Garrison GR. (1982). Sound absorption based on ocean measurements. Part II: Boric acid contribution and equation for total absorption. The Journal of the Acoustical Society of America, 72(6), 1879–1890. https://doi.org/10.1121/1.388673

The accuracy of the simplified formula from Ainslie & McColm 1998 compared with the original complicated formula from Francois & Garrison 1982 was demonstrated between 100 Hz and 1 MHz.