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Based on extensive evaluation of AMWG, UV-CDAT, and NCO codes for generating climatology files (see here /wiki/spaces/ATM/pages/29164477), we have determined that NCO provides the most correct answers, has the best metadata, and is fastest. Until UV-CDAT bests NCO in these measures we advocate using NCO for creating climatologies.
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# Read list from file
ls $drc_in/*cam.h0.0[012]??* > input_list
ncclimo --dbg=0 --yr_srt=1 --yr_end=250 --var=FSNT,AODVIS --map=${map_fl} --drc_out=$drc_out < input_list
# Pipe list to stdin
cd $drc_in
ls *cam.h0.0[012]??* | ncclimo --dbg=0 --yr_srt=1 --yr_end=250 --var=FSNT,AODVIS --map=${map_fl} --drc_out=$drc_out
# List as positional arguments
ncclimo --var=FSNT,AODVIS --yr_srt=1 --yr_end=250 --drc_out=$drc_out $drc_in/*mdl*000[1-9]*.nc
# Read directory
ncclimo --var=T,Q,RH --yr_srt=1 --yr_end=250 --drc_in=$drc_in --drc_out=$drc_out
When necessary, the The output is a collection of per-variable timeseries such as FSNT_YYYYMM_YYYYMM.nc, AODVIS_YYYYMM_YYYYMM.nc, etc. The output is split into segments each containing no more than ypf_max (default 50) years-per-file, e.g., FSNT_000101_005012.nc, FSNT_005101_009912.nc, FSNT_010001_014912.nc, etc. Change the maximum number of years-per-output-file with the --ypf_max=ypf_max option. The remainder of this documentation refers to climatology-generation mode. One caveat worth noting is that, for technical reasons too boring to explain, non-interactive batch queues cannot unambiguously distinguish filelists provided via stdin from batch queue information provided via stdin. To address this issue, ncclimo supports the --stdin switch to cause the filelist to be read from stdin. This switch is only necessary when running ncclimo in non-interactive batch mode. The switch is permitted though redundant when running ncclimo interactively (i.e., from a terminal shell). The remainder of the ncclimo documentation refers to climatology-generation mode, not to splitter mode.
MPAS O/I considerations:
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