NCAR Command Language (NCL) overview

The NCAR Command Language (NCL) is an interactive, text-based language interpreter that helps you manipulate data and create NCAR Graphics images. NCL allows you to import and export data in a variety of formats (ASCII, binary, HDF, netCDF) and to interactively manipulate that data.

Interactive data manipulation includes selecting region-of-interest data, thinning data, interpolating irregular grids to regular grids, removing corrupted data, and performing useful transformations. You can also customize the methods NCL uses to ingest and manipulate data.

As a tool for specifying visualizations, NCL allows you to generate 1D and 2D NCAR Graphics plots in many styles with many options for annotating, labeling, and animating the visualizations.

Here are the primary modules describing NCL:

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