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TSG-QC: A tool for interactive quality control of sea surface temperature and salinity

Issued Tuesday 18 May 2010.

TSG-QC is a software for interactive analysis and validation of underway SST / SSS (Sea Surface Temperature and Sea Surface Salinity) measurements from a SeaBird Thermosalinograph (TSG). It has been developed under Matlab.

Updated on November 29, 2018


TSG-QC is a tool for analysis and validation of surface temperature and salinity data acquired from a Thermosalinograph (TSG) installed on research or commercial ships.

It allows:

  1. Visualization of TSG variables: Temperature, salinity and ship speed
  2. Interactive comparison with climatological values (Levitus)
  3. Automatic quality control using selected threshold criteria
  4. Data validation and correction with external “bucket” measurements (water samples usually collected once a day)
  5. Quantitative estimation of sensor drift

The software can deal with different input data format: ASCII, Labview, "Real time" Coriolis NetCDF...


If you have a Matlab license, there are 2 options:

  1. Retrieve and install the source code of the latest release TSG-QC-v1.48.5rc6.zip
  2. See Release Notes
  3. Retrieve the current version under development from the Gitlab IRD repository:

The last version 1.48.5rc6 has been released on November 29, 2018. It works with last recent versions of Matlab (R2018b).

Follow the instructions in the README and INSTALL files to modify the paths and install the required Matlab toolboxes.


If you do not have a Matlab license, a compiled version is available by clicking the following links:

Read the file readme.txt.

Using tsgqc.exe requires installing the Matlab runtime. You need to get it from the same link and install it.


Start Matlab, go to the tsg_data subdirectory and type tsgqc to run the program. Use the File / Open menu to open a data file.


A user’s guide is available here

Standards and best practices from GOSUD


The reference document CORTSG_format_gosud.pdf [version 3.0]->https://git.outils-is.ird.fr/grelet/TSG-QC/blob/master/tsg_doc/CORTSG_format_gosud.pdf] describing the output NetCDF format is available online from the subversion repository.



In case of technical problems, you can contact me at the following address: hotline-tsgqc (order to prevent spam, replace _at_ with @ in the field to:). Please report the following information:

under Matlab, the results of the following commands:


Instructions TSG-QC