When running the WRF climate model, output for a single day is generally from 00Z to 00Z (6 or 7PM) depending on CST or CDT. The input data for the simulation for a single day is also from 00Z on the first day to 00Z on the next day.
I am using some of this output (daily max/minimum temperature, daily precipitation, and daily solar insolation) to drive a crop model. Before I run the crop model, I would like to see if it is possible to get daily output from my WRF model simulation to go from midnight (06Z) to midnight (06Z) instead. The reason for this is because it will give a more reasonable daily maximum/minimum temperature, precipitation, radiation values that can then be used as input into the crop model.
My question...how do I rearrange the time of my WRF simulation, so that my climate model output for a single day is valid from midnight to midnight? Any help would be greatly appreciated. Thanks!
As far as I know, WRF is configured to work without thinking about offsets from 0Z. Otherwise it would complicate the use of the lookup tables and sub-daily parameters in the models (and parameterizations). My recommendation would be to handle the time conversion in your post-processing. The specifics would depend on which particular set of tools you use.
For example, if using the pandas library in python, you could use the DateOffset object to shift your time coordinate by the appropriate amount, then use groupby (by day) to get your daily statistics. On xarray, another popular tool in python, you can use the shift function to move move your data along your time coordinate, then use groupby to get your daily statistics.
Thank you for your thoughtful answer Luis! I don't have much experience with Python, but this gives me a good excuse to dedicate more of my time to studying Python. Do you happen to know if this would be easy to do in Matlab also?
I'm sure it's doable, especially with all the time series and even signal processing stuff on it. Sadly I'm not familiar with the timestamp management in Matlab as much.
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