How to
Cite this tool
TBA
Preprocess data for cmpitool
As a first time user, for non-CMORized model output, preparing the raw output for use in cmpitool will likely be the largest up-front time cost. Cmpitool is deliberatly kept simple with regards to its ability to load model and observational data. It does not possess a smart data loader that can deal with a large varity in input formats. Your input data thus has to adhere to a strict but easy to understand rule set:
Data is provided in one file netcdf file per variable, model, timeperiod, level/depth, and season.
The file name format is:
${variable}_${modelname}_${timeperiod}_${level}_${season}.nc
. Example:pr_EC-Earth3_198912-201411_surface_DJF.nc
Variable names and units have to follow the CMOR standard.
Masked regions must use a recognized NAN value.
The format as output by cdo griddes is:
gridtype = lonlat
gridsize = 16380
xsize = 180
ysize = 91
xname = lon
xlongname = "longitude"
xunits = "degrees_east"
yname = lat
ylongname = "latitude"
yunits = "degrees_north"
xfirst = 0
xinc = 2
yfirst = -90
yinc = 2
It is up to the tool user to generate a script which turns the raw model output into the input for cmpitool. You can find a number of example script for CMORized and a handful for non-CMORized raw output in the subfolder preprocessing_examples
.