Time correction in WRF

[Masud_Rana]

Hi Dear,
I am little confused about the local time of the output got from the WRF running. Suppose we are providing gfs data in the WRF to generate meteorology file on my location. We are providing start and end date in the namelist.wps file as the dates of the grib files downloaded from the rda datasets. But these dates are not the actual dates of my locality. During running the real program we are again using the same date in the namelist.input file. The output from the wrf.exe should thus show the meteorology on the date/time of the location of the gfs model run, although we are extrapolating them on to our domain. So, my question is how does wrf model manage to change the date/time internally and provide the output on the same date/time of another domain? I am novice in WRF world and shy to raise this kind of sily question. Would appeciate if you kindly clear me out.

Regard,
Masud

 

[William.Hatheway]

This question is a little tricky for me to answer, my best option would be to watch the WRF tutorials on youtube that NCAR provides.

WRF Tutorial Presentations

Full-length presentations presented at the Basic WRF Tutorial. *NOTE: Presentations can be broken into chapters for easier viewing. To see chapters, while vi...

www.youtube.com

 

[kwerner]

@Masud_Rana,
The WRF model only uses times in UTC. Let's say, for e.g., that your simulation is a 12 hour run from Jan 1st at 00 UTC to Jan 1st at 12 UTC. Then local times are not considered. UTC time is consistent and does not need to be converted to local times. It's up to the user to determine what UTC times correspond to the local time of their domain. Does that makes sense?

 

[Masud_Rana]

@Masud_Rana,
The WRF model only uses times in UTC. Let's say, for e.g., that your simulation is a 12 hour run from Jan 1st at 00 UTC to Jan 1st at 12 UTC. Then local times are not considered. UTC time is consistent and does not need to be converted to local times. It's up to the user to determine what UTC times correspond to the local time of their domain. Does that makes sense?

Thank you dear for the clarification.