WRF & MPAS-A Support Forum

Hi Xinxu, To explain the problem you're seeing, I would focus more on the first part of the FAQ question you mention. We have a basic rule-of-thumb when it comes to choosing an appropriate number of processors. You will need to consider the decomposition of the processes in relation to the size of t...

Hi,
I have moved this topic from the "Dynamics and Numerics" section of the forum to this "Special Running Options" section. Someone will respond to your inquiry soon.

Hi, It should be perfectly fine to modify LANDUSE in the geo_em.* files or the wrfinput* files. We actually have an NCL program that allows you to modify landuse types in the geo_em* files. I know you have your program already, but if you are interested in that, take a look at this presentation (aro...

Hi,
Can you try to use the Vtable.ECMWF to ungrib this data and see if it makes any difference? Please keep me posted. Thanks!

Hi Maryam,
Looking at the code (e.g., WPS/geogrid/src/process_tile_module.F - line ), it looks like for LANDMASK the percentage is 50% for the grid cell, and if it were to be exactly 50%, it would be declared a water point. See line ~568.

Hi,
Can you also attach your configure file, along with your compile log? Thanks!

Alan,
I would suggest trying to contact some of the entities or groups connected to the work mentioned in the links you shared. If they've done it before, hopefully someone there will have some knowledge or a contact for you. Good luck!

Hi, If you'd like to output qndrop, you should only need to add it to the packaged info for the Morrison scheme in the Registry.EM_COMMON file. So look for this line: package morr_two_moment mp_physics==10 - moist:qv,qc,qr,qi,qs,qg;scalar:qni,qns,qnr,qng;state:rqrcuten,rqscuten,rqicuten and since it...

Hi, If you want to output max wind, there are a couple of diagnostics options built-in. They are available in V3.7, but not in 3.3. The options are output_diagnostics (which you mentioned, but does not have to be used with CLWRF) and nwp_diagnostics. You can read more about these in Version 3.7 of t...

Hi, I ran a test with the invariant data, along with ERA5 surface and pressure level data, and tried to create a domain that was close to yours. My LANDSEA mask looks exactly like yours, and I think that's just due to the resolution of what's given to us from ERA. I'm not having any trouble with the...

Nizam,
Can you explain how it failed? Was there an error? Can you attach a log file and your namelist for ARWpost? Please also let us know which version of ARWpost you are using. Thanks.

Hi, Just to make sure you're downloading the correct data, take a look at this FAQ that discusses using ERA5 data. Are you able to use the g1print.exe or g2print.exe utility on the data to read it? If you're still having problems, can you attach one time stamp of your data files so that I can test i...

This post has been moved from the "Forum Feedback" section to the General WRF-Chem section. Someone will respond soon.

Take a look at the explanation given by mgduda on Dec 31, 2020 at 11:53 A.M.

Hi,
As I'm not a computer science person, I can't tell you "why" this happens, except that they process differently. This is completely expected, though, and we are aware that results will never be identical when using different compilers or machines.

You're absolutely right. Thank you for bringing this to our attention. I've corrected the link. If you refresh the page, it should be correct now.

Hi Tristan, It looks like the invariant file should also include SOILHGT information. I'm attaching the invariant file we use so that you can try skipping the ungrib process for that particular file. Just change the attached file name to ERA5_INVARIANT (removing the .txt suffix that was necessary to...

Hi,
1) What version of WPS are you running?
2) Can you attach the full metgrid.log so that I can take a look?
3) Will you also attach your METGRID.TBL file (found in WPS/metgrid/)?
Thanks!

If you are getting this same error, we recommend putting in some debugging print statements. See the post from me on Aug 6, 2019. If you're not already doing so, I would also recommend trying the latest version of WRF (V4.2.1) to see if that helps.

Olga,
Is NCL installed on your supercomputer?

Hi Olga, I am seeing the same problem as you with geo_em* files. I, personally, have never tried running ARWpost for any output except wrfout* history files. I do see, however, that the Users' Guide says it should be compatible with geo_em* files. It may take a bit of time to track this down, unfort...

That's great news! Thank you for sending an update.

Katie,
Great! Thanks for updating the post.

If you have built NetCDF with separate installations of NetCDF-c and NetCDF-fortran, you will need to combine the components so that the WRF model will be able to find the libraries. To do this, you can create a NetCDF directory, which should contain subdirectories called "lib," "include," and "bin....

Hi, I have been unable to repeat the problem, using your namelist setup - even down to 500 m. It looks like some of the static data you are requesting (modis_15s_lake, maxsnowalb_modis, and albedo_modis) are set-up in newer GEOGRID.TBL files (e.g., from V4.2). Are you using a newer GEOGRID.TBL to ru...