This is an Atom package for NCL (NCAR Command Language). It contains syntax and some useful snippets. It was based on a Sublime Text package by Li Dong.
To install, either:
apm install language-ncl at your command line.
language-ncl using the Atom package manager.
Open a new file in Atom with the suffix
.ncl, and you are good to go!
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.