NAME

       ncecat - netCDF Ensemble Concatenator

SYNTAX

       ncecat  [-3]  [-4]  [-6]  [-7]  [-A]  [--bfr  sz][-C][-c][--cnk_byt  sz][--cnk_dmn nm,sz] [--cnk_map map]
       [--cnk_plc plc] [--cnk_scl sz][-D dbg_lvl] [-d dim,[ min][,[ max]]]  [-F]  [-G  gpe_dsc]  [-g  grp[,...]]
       [--gag]  [-h] [--hdr_pad sz] [-L dfl_lvl] [-l path] [-M] [--mrd] [--msa] [-n loop] [--no_tmp_fl] [-O] [-p
       path] [-R] [-r] [--ram_all] [-t thr_nbr] [-u ulm_nm] [--unn] [-v var[,...]]  [-X  box]  [-x]  input-files
       output-file

DESCRIPTION

       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 file.  Input files must be  the  same  size.   Each
       input  file  is  stored  consecutively  as  a  single  record  in the output file.  Each variable (except
       coordinate variables) in each input file becomes one record in the same  variable  in  the  output  file.
       Coordinate  variables  are  not concatenated, they are instead simply copied from the first input file to
       the output-file.  Thus, the size of the output file is the sum of the sizes of the input files.

       Consider five realizations, 85a.nc, 85b.nc,...  85e.nc of 1985 predictions from the same  climate  model.
       Then  ncecat 85?.nc 85_ens.nc glues the individual realizations together into the single file, 85_ens.nc.
       If an input variable was dimensioned [ lat, lon], it will have dimensions [  record,  lat,  lon]  in  the
       output  file.  A restriction of ncecat is that the hyperslabs of the processed variables must be the same
       from file to file.  Normally this means all the input files are  the  same  size,  and  contain  data  on
       different realizations of the same variables.

EXAMPLES

       Consider  a  model  experiment  which generated five realizations of one year of data, say 1985.  You can
       imagine that the experimenter slightly perturbs the initial conditions of the problem  before  generating
       each new solution.  Assume each file contains all twelve months (a seasonal cycle) of data and we want to
       produce  a  single file containing all the seasonal cycles.  Here the numeric filename suffix denotes the
       experiment number (not the month):
              ncecat 85_01.nc 85_02.nc 85_03.nc 85_04.nc 85_05.nc 85.nc
              ncecat 85_0[1-5].nc 85.nc
              ncecat -n 5,2,1 85_01.nc 85.nc
       These three commands produce identical answers.  The output file, 85.nc, is five  times  the  size  as  a
       single  input-file.   It  contains  60  months  of data (which might or might not be stored in the record
       dimension, depending on the input files).

AUTHOR

       NCO manual pages written by Charlie Zender and originally formatted by Brian Mays.

REPORTING BUGS

       Report bugs to <http://sf.net/bugs/?group_id=3331>.

COPYRIGHT

       Copyright © 1995-2012 Charlie Zender
       This is free software; see the source for copying  conditions.   There  is  NO  warranty;  not  even  for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

       The  full  documentation  for NCO is maintained as a Texinfo manual called the NCO User's Guide.  Because
       NCO is mathematical in  nature,  the  documentation  includes  TeX-intensive  portions  not  viewable  on
       character-based displays.  Hence the only complete and authoritative versions of the NCO User's Guide are
       the    PDF    (recommended),    DVI,    and    Postscript    versions   at   <http://nco.sf.net/nco.pdf>,
       <http://nco.sf.net/nco.dvi>, and <http://nco.sf.net/nco.ps>, respectively.  HTML  and  XML  versions  are
       available at <http://nco.sf.net/nco.html> and <http://nco.sf.net/nco.xml>, respectively.

       If the info and NCO programs are properly installed at your site, the command

              info nco

       should give you access to the complete manual, except for the TeX-intensive portions.

       ncap(1),  ncap2(1),  ncatted(1),  ncbo(1),  ncdiff(1),  nces(1),  ncecat(1), ncflint(1), ncks(1), nco(1),
       ncpdq(1), ncra(1), ncrcat(1), ncrename(1), ncwa(1)

HOMEPAGE

       The NCO homepage at <http://nco.sf.net> contains more information.

                                                                                                       NCECAT(1)