This manual describes NCO, which stands for netCDF Operators.NCO is a suite of programs known as operators.Each operator is a standalone, command line program executed at theshell-level like, e.g., ls or mkdir. The operators take netCDF files (including HDF5 filesconstructed using the netCDF API) as input, perform anoperation (e.g., averaging or hyperslabbing), and produce a netCDF file as output. The operators are primarily designed to aid manipulation and analysis of data.The examples in this documentation are typical applications of theoperators for processing climate model output. This stems from their origin, though the operators are as general asnetCDF itself.
Note for HTML users: The definition of mathematical operations involving rank reduction(e.g., averaging) relies heavily on mathematical expressions whichcannot easily be represented in HTML. See the printed manual for much more detailedand complete documentation of this subject.The definitions of some of these operations are not universally useful.Mostly they were chosen to facilitate standard statisticalcomputations within the NCO framework.We are open to redefining and or adding to the above. If you are interested in having other statistical quantitiesdefined in NCO please contact the NCO project(see Help Requests and Bug Reports).
Tempest DD-21-B-6.5 Operation Manual
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