Graphics: RIP - Running RIPDP

RIP does not ingest model output files directly. First, a preprocessing step must be executed that converts the model output data files to RIP-format data files. The primary difference between these two types of files is that model output data files typically contain all times and all variables in a single file (or a few files), whereas RIP data has each variable at each time in a separate file. The preprocessing step involves use of the program RIPDP (which stands for RIP Data Preparation). RIPDP reads in a model output file (or files), and separates out each variable at each time.
 

Running RIPDP
The program has the following usage:

ripdp_XXX [-n namelist_file] model-data-set-name [basic|all]  data_file_1  data_file_2  data_file_3 ...

In the above, the "XXX" refers to "mm5", "wrfarw", or "wrfnmm"
For these exercises we will only use the converter for WRF ARW, which is ripdp_wrfarw

The argument model-data-set-name can be any string you choose, that uniquely defines this model output data set.

The use of the namelist file is optional. The most important component of the namelist is declaring the times you want to process.

As this step will create a large number of extra files, creating a new directory to place these files in, will enable you to manage the files easier (mkdir RIPDP).

e.g. ripdp_wrfarw RIPDP/arw all wrfout_d01_*

 

RIP namelist