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WRFV4.5 adds support for ARM64. Does anyone have any experience with the platform? Does this induce performance improvements?

Hello, I am running two domains over Greece d01 = 13.5km x 13.5 and d02 = 4.5 x 4.5 with GFS input data every 1h. I wanted to test the impact of observation nudging by incorporating wind speed & direction observations captured in wind farms. In total there are about 120 wind turbines in about...

I am the administrator of the machine and I did compare the two configure files. That for some strange reason didn't work. However, I did manage to properly compile WRF so that it creates HDF5 files. I am attaching the successful configuration file, for what its worth.

Hello, I have been running WRF 4.2 in an Ubuntu 20.04.2.0 LTS box without any issues. Recently I tried updating to WRF & WPS 4.3, which compiled successfully and runs without problems. However, it outputs NetCDF 3 (old format) files instead of NetCDF/HDF5. I have tried changing the...

I updated to WRF 4.1.2 and WPS 4.1 and now my problems are solved.

Indeed, I am using WPS 3.9.1. However, according to weatheraddict, this is still an issue in the latest version of WPS.

The cause & solution is here https://forum.mmm.ucar.edu/phpBB3/viewtopic.php?f=40&t=8614&p=14965#p14965

A very kind man researched the issue and concluded the following: I am posting it here in case it helps someone else. The sf_surface_physics value for NOAh-MP is 4.

I have this problem too, running WRF 3.9.1.1 Any help would be greatly appreciated.

There was a scheduled update in GFS yesterday https://www.weather.gov/media/notification/scn19-84gfs15_2.pdf Is anyone else having issues currently?

This is the complete output while running wrf.exe Ntasks in X 1 , ntasks in Y 1 Setting blank km_opt entries to domain #1 values. --> The km_opt entry in the namelist.input is now max_domains. Setting blank diff_opt entries to domain #1 values. --> The diff_opt entry in...

I have a computer running WRF 3.9.1.1 for about 5 months, doing 4 runs a day using GFS input. The past 3 runs have failed giving the following error: real_em: SUCCESS COMPLETE REAL_EM INIT WARN5: NaN temperature; I,J,L,P= 2 92 1 NaN Program received...

Indeed, U & V have to be averaged to the destaggered grid first, I figured out later on. Thank you very much! For anyone interested in a simple way to achieve this, the WRF python package by NCAR does this and a lot more.

I know that the U10 & V10 wind components are grid relative and by using this formula http://forum.mmm.ucar.edu/phpBB3/viewtopic.php?f=78&t=179&p=338&hilit=sinalpha, one can convert to earth relative ones. My question though is about the U & V components on the various eta levels. There doesn't...