How to find ref_lat and ref_lon

[Din19]

Hello everyone.

I have set the domains and run simulations, but when I checked my results in QGis, my domains were shifted.

I believe the problem is in ref_lat and ref_lon coordinates. I just put the real coordinates of the desired center of domain. However, when I check it in qgis, the center of domain shows different coordinates.

So, could please anyone help me to understand how to calculate the ref_lat and ref_lon. I checked all the available lectures about WRF and WRF user guides.

Thank you.

Kind regards,

Indira

 

[Deleted member 3607]

I personally use either the WRF-Python or the DomainWizard to help with the domain set up. Maybe one of those might be able to help you?

# Snippet of code from the install scripts
######################## WPS Domain Setup Tools ########################
## DomainWizard
cd $HOME/WRF-Hydro/Downloads
wget -c http://esrl.noaa.gov/gsd/wrfportal/domainwizard/WRFDomainWizard.zip
mkdir $HOME/WRF-Hydro/WRFDomainWizard
unzip WRFDomainWizard.zip -d $HOME/WRF-Hydro/WRFDomainWizard
chmod +x $HOME/WRF-Hydro/WRFDomainWizard/run_DomainWizard


######################## WPF Portal Setup Tools ########################
## WRFPortal
cd $HOME/WRF-Hydro/Downloads
wget -c https://esrl.noaa.gov/gsd/wrfportal/portal/wrf-portal.zip
mkdir $HOME/WRF-Hydro/WRFPortal
unzip wrf-portal.zip -d $HOME/WRF-Hydro/WRFPortal
chmod +x $HOME/WRF-Hydro/WRFPortal/runWRFPortal

wrf-python — wrf-python 1.3.4.1 documentation

Diagnostic and interpolation routines for WRF ARW data

wrf-python.readthedocs.io

 

[Ming Chen]

Indira,
ref_lat and ref_lon are specified in namelist.wps, they represent the center of the coarse model domain.
Would you please clarify what you mean by saying "my domains were shifted"?

 

[Din19]

Thank you for your help. The problem was resolved.