mbm_xbt
Section:  MB-System 5.0  (1)
Updated:  3 June 2013 
Index


 
NAME

mbm_xbt - Calculate sound speed from XBT data.

 
VERSION

Version 5.0

 
SYNOPSIS

mbm_xbt -Iinfile [-Fformat
-Llatitude -Ssalinity -V -H]

 
DESCRIPTION

mbm_xbt is a perl shellscript to translate various XBT data sets
from depth and temperature into depth and sound speed.  Header
lines are turned into comments beginning with '#' characters. The
output filename consists of the input filename with the suffix ".sv".
The conversion is done using the DelGrosso equation as referenced
in Dusha et al. [1993] (reference below).

 
MB-SYSTEM AUTHORSHIP

David W. Caress




  Monterey Bay Aquarium Research Institute



Dale N. Chayes




  Center for Coastal and Ocean Mapping




  University of New Hampshire



Christian do Santos Ferreira




  MARUM - Center for Marine Environmental Sciences




  University of Bremen

 
ALSO CONTRIBUTED TO THIS PROGRAM

Suzanne H. O'Hara




  Lamont-Doherty Earth Observatory

 
OPTIONS


-F


format



Allows the user to select the type of XBT data. Currently supported
formats are: 1 = Sparton XBT, 2 = Sippican MK12 XBT, 3 = Sippican MK21.
Default: format = 2.
-H


This "help" flag cause the program to print out a description
of its operation and then exit immediately.
-I


file



Data file from which the input data will be read.
-L


latitude



Latitude of the XBT cast.
-S


salinity



Sets the salinity used to calculate sound speed from temperature
and depth. The default value of 35 ppt may be significantly
in error in some areas.  Default: salinity = 35.
-V


Causes mbm_xbt to operate in "verbose" mode so that it outputs
more information than usual.


 
NOTES

There is a hard limit in the code that prevents temperatures less than
-2.0 degrees C from being used. Input lines containing temperatures less
than -2.0 will be ignored.

 
SEE ALSO

mbsystem(1), mbprocess(1), mbset(1),
mbvelocitytool(1), mblevitus(1)

 
REFERENCES

Dusha, B. D., P. F. Worcester, B. D. Cornuelle, B. M. Howe,
On equations for the speed of sound in seawater, J. Acoust. Soc. Am.,
93, 255-275, 1993.

 
BUGS

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Index

NAME

VERSION

SYNOPSIS

DESCRIPTION

MB-SYSTEM AUTHORSHIP

ALSO CONTRIBUTED TO THIS PROGRAM

OPTIONS

NOTES

SEE ALSO

REFERENCES

BUGS