You can use SAVE/APPEND to create a big file with all the data - if they are on the same grid. The timesteps need to be defined using the same time encoding.
I'm not sure what is going on when there are 32 days in a monthly file. You can give the time range on the SAVE command, so if what's happening is that for example, the January file contains January 1 through February 1, you can write out just the dates you want.
So if your grids are compatible, this might look something like:
yes? use name_1.nc
and so on.
On 4/4/2015 2:01 AM, Satyam Srivastava wrote: