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ICHEC Software

Information about software packages installed on the ICHEC systems.

Ferret: interactive computer visualization and analysis environment

Versions Installed

Stokes: 6.6.2

Stoney: 6.6.2


An Analysis Tool for Gridded and Non-Gridded Data

Ferret is an interactive computer visualization and analysis environment designed to meet the needs of oceanographers and meteorologists analyzing large and complex gridded data sets. It runs on most Unix systems, and on Windows XP/NT/9x using X windows for display. It can transparently access extensive remote Internet data bases using OPeNDAP (formerly known as DODS); see http://www.unidata.ucar.edu/packages/dods/.

Ferret was developed by the Thermal Modeling and Analysis Project (TMAP) at PMEL in Seattle to analyze the outputs of its numerical ocean models and compare them with gridded, observational data. The model data sets are generally multi-gigabyte in size with mixed 3 and 4-dimensional variables defined on staggered grids. Ferret offers a Mathematica-like approach to analysis; new variables may be defined interactively as mathematical expressions involving data set variables. Calculations may be applied over arbitrarily shaped regions. Fully documented graphics are produced with a single command.

Many excellent software packages have been developed recently for scientific visualization. The features that make Ferret distinctive among these packages are Mathematica-like flexibility, geophysical formatting, "intelligent" connection to its data base, memory management for very large calculations, and symmetrical processing in 4 dimensions.

Ferret is widely used in the oceanographic community to analyze data and create publication quality graphics.


FERRET is freely available under the Ferret License.



Additional Notes

To use FERRET load the relevant environment module:

module load ferret

Further information can be obtained at http://www.ferret.noaa.gov/Ferret/.

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