NAME: get_gridparams PURPOSE: 1) extract from a NetCDF file the longitude, latidude, and their dimensions and make sure it is 1D or 2D arrays or 2) given longitude and latitude arrays get their dimensions and make sure they are 1D or 2D arrays CATEGORY:for interpolations tools CALLING SEQUENCE: 1) get_gridparams, file, lonname, latname, lon, lat, jpi, jpj, n_dimensions or 2) get_gridparams, lon, lat, jpi, jpj, n_dimensions INPUTS: 1) file: the name of the netcdf file loname: the name of the variable that contains the longitude in the NetCDF file latname: the name of the variable that contains the latitude in the NetCDF file or 2) lon and lat: 1d or 2D arrays defining longitudes and latitudes. Note that these arrays are also outputs and can therefore be modified. KEYWORD PARAMETERS: none OUTPUTS: lon the variable that will contain the longitudes lat the variable that will contain the latitudes jpi the number of points in the longitudinal direction jpj the number of points in the latitudinal direction n_dimensions: 1 or 2 to specify if lon and lat should be 1D (jpi or jpj) arrays or 2D arrays (jpi,jpj). Note that of n_dimensions = 1, then the grid must be regular (each longitudes must be the same for all latitudes and each latitudes should be the sae for all longitudes). COMMON BLOCKS: none SIDE EFFECTS: ? RESTRICTIONS: ? EXAMPLE: 1) ncdf_get_gridparams, 'coordinates_ORCA_R05.nc', 'glamt', 'gphit' $ , olon, olat, jpio, jpjo, 2 2) ncdf_get_gridparams, olon, olat, jpio, jpjo, 2 MODIFICATION HISTORY: