c_Leroy08: Compute speed of sound according to Leroy et al. (2008)

In AustralianAntarcticDivision/ZooScatR: ZooScatR - Acoustic Scattering of zooplankton using DWBA

Compute speed of sound according to Leroy et al. (2008)

Description

Returns the sound speed according to Leroy et al (2008). This "newer" equation should solve the sound speed within 0.2 m/s for all seas, including the Baltic and Black sea, based on Temperature, Salinity and Latitude. Exceptions are some seas with anomalities close to the bottom. The equation was specifically designed to be used in marine acoustics.

Usage

c_Leroy08(Z, T, S, lat)

Arguments

Z	Depth in m
T	Temperature in degrees Celsius
S	Salinity in parts per thousand
lat	Latitude in degrees

Source

Leroy, C. C., Robinson, S. P., & Goldsmith, M. J. (2008). A new equation for the accurate calculation of sound speed in all oceans. The Journal of the Acoustical Society of America, 124(5), 2774-2782. http://asa.scitation.org/doi/abs/10.1121/1.2988296

References

Leroy, C. C., Robinson, S. P., & Goldsmith, M. J. (2008). A new equation for the accurate calculation of sound speed in all oceans. The Journal of the Acoustical Society of America, 124(5), 2774-2782.

Examples

# TABLE III in Leroy et al. (2008)
# Common oceans, lat = 30°, P= 80 MPa Z= 7808.13 m, S= 34.7%
lat=30; Z=7808.13; S=34.7; T=c(1,1.5,2,2.5,3)
c_Leroy08(Z,T,S,lat)
# Common oceans, lat = 30°, P= 80 MPa Z= 7808.13 m, T=2 °C
c_Leroy08(Z,T=2,S=seq(33.5,35.5,.5),lat)
# Common oceans, = 30°, P= 5 MPa Z= 497.12 m, S= 35%
c_Leroy08(Z=497.12,T=seq(-2,20,2),S=35,lat)
# Common oceans, = 30°, P= 5 MPa Z= 497.12 m, T=8 °C
c_Leroy08(Z=497.12,T=8,S=seq(33,37,1),lat)

AustralianAntarcticDivision/ZooScatR documentation built on Aug. 13, 2022, 1:21 a.m.