Run fails with Adaptive time step in cycling mode

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tiziana
Posts: 8
Joined: Mon Oct 15, 2018 10:41 am

Run fails with Adaptive time step in cycling mode

Post by tiziana » Fri Mar 22, 2019 2:47 pm

Hi,

I am running WRF (v3.9.1) in cycling mode (every 6 hour) using WRFDA on a previous 6h WRF forecast as background. I normally use adaptive time stepping, to save on simulation time. If I run WRF in cold mode, it works just fine. But if I run WRF every six hour, using previous 6h forecast as background and with use_adaptive_time_step=.true. in the WRF namelist, the WRF run starts but stops immediately saying WRF successfully ended, but without having done any time integration at all. If, leaving everything else the same, I set use_adaptive_time_step=.false. , then the run proceeds and does its 60h of integration. I cannot figure out why? Did anyone experience this before?

Any help would be greatly appreciated!

kwerner
Posts: 2287
Joined: Wed Feb 14, 2018 9:21 pm

Re: Run fails with Adaptive time step in cycling mode

Post by kwerner » Fri Mar 22, 2019 8:20 pm

This topic has been moved to the WRFDA section, as this problem seems to be specific to a run with WRFDA, as opposed to basic WRF.
NCAR/MMM

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