Spliting NetCDF output

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andres · #1 Unread post by **andres** » Sun Jul 30, 2006 3:40 pm

Hi,

How do I split the NetCDF output files (roms_his.nc).

I would like to have several files rather that a huge one.

Thanx,

Andres

kate · #2 Unread post by **kate** » Mon Jul 31, 2006 5:24 pm

Well, you can split it by records, forcing ROMS to start writing a new file after some number of records. The related code this isn't completely bug-free, but works well enough to be useful. See the NDEFHIS parameter in ocean.in. It's best of you can tell ROMS to run for some multiple of NDEFHIS timesteps - I start a new file every ten days/records and run in 120 day chunks.

If you've already got a large file and you only want to bring back say sea surface temperature, you can use NCO.