Reading NetCDF in Fortran Software Documentation

Usage

 cdf2fortran inputFilePath (optional)outpuFilePath

inputFilePath

The full path to the netCDF file for which you wish to create a fortran routine to read the data. The netcdf filename should end with the .cdf extension.

outpuFilePath

The full path to the file to which you wish to write the resultant fortran code. If you do not provide an outputFilePath the result will be written to the file readnet.f.

This program will ask the user for the name of a netcdf file to read. It will open that file and using the proper netCDF calls, get info on the variables and their dimensions. It then generates a FORTRAN program that can be used to actually read the netCDF file and fill the variables with data. This program can be used to read ANY netCDF file. The user only has to write fortran statements to print the data or pass to another program. Once you have generated a program, you may use it to read any file of that data type; i.e., the program is general until the powers to be change variable attributes.

Prerequisites

This program cannot be compiled without the netCDF library. The source code for the netCDF library can be obtained via anonymous ftp to ftp.unidata.ucar.edu. The necessary files are located in the /pub/netcdf directory.

The program also requires the inclusion of the file netcdf.inc provided with the netcdf library release. This file contains required constants, etc... The path to the directory containing this file must be set in the Makefile provided with this release. Modify the COM_INCS line to reflect the include file location on your system.

Example

Assuming you have met all of the prerequisites, and that you modified the compile.sh script to reflect the correct library locations on your system and to reflect the proper compiler flags for your system.

your_machine 1 > make 
your_machine 2 > cdf2fortran /path_to_data_file/data_file.cdf

The resulting fortran code will be placed in the file readnet.f You may add code to manipulate the data to readnet.f.

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