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NCL website  

The NCAR Command Language (NCL), a product of the Computational & Information Systems Laboratory at the National Center for Atmospheric Research (NCAR) and sponsored by the National Science Foundation, is a free interpreted language designed specifically for scientific data processing and visualization.

Environment Modules

Run module spider NCL to find out what environment modules are available for this application.

System Variables

  • HPC_NCL_DIR - installation directory
  • HPC_NCL_BIN - executable binary directory
  • HPC_NCL_LIB - library directory
  • HPC_NCL_INC - include directory


If you publish research that uses NCL, you may cite it as follows:

The NCAR Command Language (Version 6.1.2) [Software]. (2013). Boulder, Colorado: UCAR/NCAR/CISL/VETS.