WRF idealized test case outputs with project RotatedLatLon, why?

[joshclark]

Hello!

I've successfully set up WRF and have also run a couple of the test cases included in WRF4.4.1 (em_fire, em_quarter_ss). These runs are successful as well and output the standard `wrfout_d01_0001-01-01_00:00:00` type files. I then attempt to visualize these files (example, SLP) using wrf-python and discover the projection is `RotatedLatLon`:

It is unclear how to get this to display appropriately using the plotting tutorial here: Plotting Examples — wrf-python 1.3.4.1 documentation (the resulting image is useless). I assume I need the data in Lambert or some other projection that is more suitable for display.

Is there a way to configure the idealized test cases to use Lambert in wrf OR is there a succinct method for converting the projection to Lambert using wrf-python or other geospatial lib during post-processing?

Thank you!

 

[Ming Chen]

I don't think there is a 'true' map projection in the ideal cases of WRF. Those samples in the website are created for real-data case and we cannot use them directly to process wrfout files from ideal cases.
We use NCL before and is in the middle of switching form NCl to Python. Unfortunately at present we don't have python samples for ideal WRF run.

 

[sstrey]

I don't think there is a 'true' map projection in the ideal cases of WRF. Those samples in the website are created for real-data case and we cannot use them directly to process wrfout files from ideal cases.
We use NCL before and is in the middle of switching form NCl to Python. Unfortunately at present we don't have python samples for ideal WRF run.

Do you have examples of the NCL scripts?

 

[Ming Chen]

Please see the attached NCL script, which is for ideal sea-breeze case.

 

[sstrey]

Please see the attached NCL script, which is for ideal sea-breeze case.

Thank you for your reply. I am unable to see the attachment.

 

[Ming Chen]

@sstrey
I attach the script here.

 

[rajaasim]

I don't think there is a 'true' map projection in the ideal cases of WRF. Those samples in the website are created for real-data case and we cannot use them directly to process wrfout files from ideal cases.
We use NCL before and is in the middle of switching form NCl to Python. Unfortunately at present we don't have python samples for ideal WRF run.

Hello @Ming Chen,
Do you have a Python sample for the ideal run now? If so, can you please upload that?
Asim

 

[Ming Chen]

Asim
I am sorry that I don't have such a python script at present.