GFD2 is a dataset directory which contains some geophyiscal data, stored in netCDF format, used as input data for MATLAB programs in the textbook Introduction to Geophysical Fluid Dynamics by Benoit Cushman-Roisin and Jean-Marie Beckers.
CDL, a data directory of examples of CDL files, a text version of NETCDF files created by the NCDUMP program;
GFD2, a MATLAB library which contains many functions for simulating geophysical fluid dynamics.
NETCDF a data directory which contains examples of netCDF files, a format for the interchange of scientific data.
You can go up one level to the DATASETS directory.