Hello shl,
You can, as you and Dave both point out, turn
latitude into a record dimension, then concatenate
your files with ncrcat, then (if you want) turn
latitude back into a fixed (non-record) dimension.
Adding and removing the record dimension property
are illustrated here:
http://nco.sf.net/nco.html#dmn_rcd_mk
http://nco.sf.net/nco.html#dmn_rcd_rm
These do and un-do the command-line equivalent of Dave's kludge.
Just use "latitude" instead of "time".
Good luck,
Charlie
--
Charlie Zender, Department of Earth System Science
University of California, Irvine (949) 231-7002 :)