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Tools developed by the GHER

This is a list of software and tools developed by the group, mainly in numerical modeling, spatial interpolation and data assimilation.


  • DINEOF (Data Interpolating Empirical Orthogonal Functions): a tool for removing missing data in geophysical data sets
  • DIVA (Data-Interpolating Variational Analysis): a spatial interpolation software
  • "Diva on web" Diva's web-interface
  • "OceanBrowser" A web-interface for visualizing NetCDF files
  • GHER3D Three dimensional primitive equation model

Data assimilation

Octave/Matlab toolboxes

Other tools

Here are another set of tools useful in oceanography and numerical modeling.

Programming languages

  • Octave
  • Matlab/Octave scripts: read/write GHER format + commands for figures.
  • Julia: a language for technical computing (under construction)
  • GoogleEarth: nice stuffs to do in oceanography (under construction)
  • Tcl/Tk: a scripting language for GUIs (among others)


  • g95: g95 has a good support for the Fortran 1995 standard
  • gfortran: gfortran supports OpenMP
  • ifort: Intel compilers


Editors and word processors

  • vi editor: a powerful linux text editor.
  • LaTeX: a document preparation system.


Remote access and desktop virtualization

Note: if keyboard problem (e.g., azerty vs. qwerty), type

setxkbmap be

(where 'be' has to be changed accordingly to your keyboard)

You may also need to type

setxkbmap -model evdev -layout be

in order to avoid unwanted keyboard behavior (ex: upward arrow launches snapshot tool)


Useful to convert a pdf into text, when acrobat does not recognize properly the strings.

  • pdftk (pdftoolkit): perform operations on pdf documents.
    • Split a pdf file into multiple file
pdftk mydoc.pdf burst
  • Dropbox: a file hosting service. The free account provides 2 Gb. It offers file synchronisation. Useful when having to share very large files, or to make a backup. For linux, the packages are available at, or can be downloaded through the package manager.
Personal tools