Package nco

Suite of programs for manipulating NetCDF/HDF4 files

http://nco.sourceforge.net/

The netCDF Operators, NCO, are a suite of command line programs known
as operators. The operators facilitate manipulation and analysis of
self-describing data stored in the freely available netCDF and HDF
formats (http://www.unidata.ucar.edu/packages/netcdf and
http://hdf.ncsa.uiuc.edu, respectively). Each NCO operator (e.g.,
ncks) takes netCDF or HDF input file(s), performs an operation (e.g.,
averaging, hyperslabbing, or renaming), and outputs a processed netCDF
file. Although most users of netCDF and HDF data are involved in
scientific research, these data formats, and thus NCO, are generic and
are equally useful in fields from agriculture to zoology. The NCO
User's Guide illustrates NCO use with examples from the field of
climate modeling and analysis. The NCO homepage is
http://nco.sourceforge.net/.

General Commands (Section 1)
ncap
ncap arithmetically processes a netCDF file. However, in about 2008 ncap was deprecated in favor of ncap2 which far surpasses its capabilities. ncap will...
ncap2
ncap2 supercedes and is backwards-compatible with ncap which is now deprecated. Both operators arithmetically process netCDF files. The primary ncap2...
ncatted
ncatted edits attributes in a netCDF file. If you are editing attributes then you are spending too much time in the world of metadata, and ncatted was written...
ncbo
ncbo subtracts variables in file_2 from the corresponding variables (those with the same name) in file_1 and stores the results in file_3. Variables in file_2...
ncclimo
ncclimo produces climatological monthly means, seasonal means, annual mean, and optionally regrids all these files.
ncecat
ncecat concatenates an arbitrary number of input files into a single output file. Input files are glued together by creating a record dimension in the output...
nces
nces performs gridpoint averages of variables across an arbitrary number (an ensemble) of input files, with each file receiving an equal weight in the average...
ncflint
ncflint creates an output file that is a linear combination of the input files. This linear combination can be a weighted average, a normalized weighted...
ncks
ncks combines every feature we could think of, except the kitchen sink, into one versatile utility to manipulate netCDF files. ncks extracts a subset of the...
nco
The netCDF Operators, or NCO are a suite of programs known as operators. Each operator is a standalone, command line program which is executed at the UNIX...
ncpdq
ncpdq packs or re-shapes variables in input-file and stores them in output-file. Which variables to pack/unpack are determined by the packing policy encoded in...
ncra
ncra averages record variables across an arbitrary number of input files. The record dimension is retained as a degenerate (size 1) dimension in the output...
ncrcat
ncrcat concatenates record variables across an arbitrary number of input files. The final record dimension is by default the sum of the lengths of the record...
ncremap
ncremap remaps the data in the input-file file(s) to the grid specified by (in descending order of precedence) map_fl , dst_fl, grd_dst, or grd_sng, and stores...
ncrename
ncrename renames dimensions, variables, and attributes in a netCDF file. Each object that has a name in the list of old names is renamed using the corresponding...
ncwa
ncwa averages variables in a single file over arbitrary dimensions, with options to specify weights, masks, and normalization. The default behavior of ncwa is...