Technical information

EK60calibration
•Thesoundvelocityisautomaticallycalculatedbytheechosounder.
•Thecorrespondingabsorptioncoefcientiscalculatedbytheechosounder
accordingtoFrancois&Garrison,JASADecember1982.
Note
Whenyoucalculatethetargetstrength(TS),youmustusethesoundvelocityat
thesphere'sdepth.
4UsetheechosoundertocheckthatoperationinNormalmodefunctionsproperly
foralltransducers.
Figure2Soundspeedinwater
1550
Soundspeed(inm/s)(atdepth0m)
Mackenzie(1981)J.acoust.Soc.Am.,70,807-12. DelGrosso(1972)J.acoust.Soc.Am.,52,1442-6.
1500
1450
1400
0 5 10
Watertemperature(in C)
o
15 20 25 30
(CD010014B)
Salinity0
Salinity40
164692/D
39