Search found 102 matches
- Wed Feb 17, 2021 1:23 pm
- Forum: General NWP, Postprocessing, Meteorology
- Topic: Best practices for dropping spinup time
- Replies: 0
- Views: 32
Best practices for dropping spinup time
Hi all, If I wish to drop the first 6 hours of a run by setting FREQ_WRF_GRIB = 180:360, 60:360 in the post_grib.conf, the resulting grib files are using the initialization file reference time and the first forecast records are for 6 hours forecast. Is it an acceptable practice to reset the referenc...
- Mon Dec 28, 2020 5:49 pm
- Forum: UEMS v18 and higher support
- Topic: Underestimated cloud cover
- Replies: 5
- Views: 372
Re: Underestimated cloud cover
Thanks for the hints.
I'll start tweaking the microphyisics schemes
I'll start tweaking the microphyisics schemes
- Tue Dec 15, 2020 10:31 am
- Forum: UEMS v18 and higher support
- Topic: Underestimated cloud cover
- Replies: 5
- Views: 372
Re: Underestimated cloud cover
Hi,
I'm using UEMS 20.11.3 and 19.8.1
The difference is to real observations and the lack of resolving cloud cover appear to be related to non-convective clouds.
Convection is being forecast quite accurately.
I'm using UEMS 20.11.3 and 19.8.1
The difference is to real observations and the lack of resolving cloud cover appear to be related to non-convective clouds.
Convection is being forecast quite accurately.
- Tue Dec 08, 2020 10:11 am
- Forum: UEMS v18 and higher support
- Topic: Underestimated cloud cover
- Replies: 5
- Views: 372
Underestimated cloud cover
In the eastern Mediterranean area I am noticing underestimation of cloud cover by WRF. This in comparison to the cloud coverage predicted by global models (GFS, ICON, Arpege). I have tried several CU and PBL schemes resulting in only minor differences in cloud prediction. Has anyone tried to adjust ...
- Tue Dec 08, 2020 9:37 am
- Forum: UEMS v18 and higher support
- Topic: Underestimated cloud cover
- Replies: 0
- Views: 153
Underestimated cloud cover
In the eastern Mediterranean area I am noticing underestimation of cloud cover by WRF. This in comparison to the cloud coverage predicted by global models (GFS, ICON, Arpege). I have tried several CU and PBL schemes resulting in only minor differences in cloud prediction. Has anyone tried to adjust ...
- Fri Oct 30, 2020 11:51 am
- Forum: UEMS v18 and higher support
- Topic: ems_autorun runs WRF ARW twice
- Replies: 1
- Views: 461
Re: ems_autorun runs WRF ARW twice
Hi,
What is sysinfo reporting in regards to number of cpu's and cores?
Have you turned off hyperthreading?
David
What is sysinfo reporting in regards to number of cpu's and cores?
Have you turned off hyperthreading?
David
- Fri Oct 30, 2020 11:44 am
- Forum: UEMS v18 and higher support
- Topic: Problems installing on Debian (64-Bit)
- Replies: 2
- Views: 385
Re: Problems installing on Debian (64-Bit)
Hi,
I ran into the same problem installing on Debian 10
The problem is in the installer script with a call to "uname" on line 2281
My workaround:
changed line 2281 to $info{hwtype} = `/bin/uname -m`;
instead of uname -i
I updated Robert on this
I ran into the same problem installing on Debian 10
The problem is in the installer script with a call to "uname" on line 2281
My workaround:
changed line 2281 to $info{hwtype} = `/bin/uname -m`;
instead of uname -i
I updated Robert on this
- Sat Oct 05, 2019 11:22 am
- Forum: UEMS v18 and higher support
- Topic: About FV3 data
- Replies: 4
- Views: 3696
Re: About FV3 data
As far as I remember, gfsp25 and gfsp25pt and other gfs datasets switched over to FV3 on the 12 June this year.
If you have the latest version of UEMS the switch over is transparent.
David
If you have the latest version of UEMS the switch over is transparent.
David
- Sat Jul 06, 2019 9:22 am
- Forum: UEMS v18 and higher support
- Topic: Google Cloud Platform and Hyperthreading
- Replies: 4
- Views: 3745
Re: Google Cloud Platform and Hyperthreading
It is possible to set the number of cpus and to stop the hyperthreading of an E2C instance, at least on Ubuntu distros This is what I used: edit /etc/default/grub if you want 16 cores for c3.8xlarge for e.g you'd edit: GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0 maxcpus=16" GRUB...
- Sat Jul 06, 2019 9:11 am
- Forum: UEMS v18 and higher support
- Topic: Copying domains
- Replies: 2
- Views: 2633
Re: Copying domains
Hi,
Simply create a new domain using the command line ems_domain --create ...
Then copy the namelist.wps file from the static folder in your old domain to the static folder in the new domain (overwrite the existing namelist.wps).
Then finally run on the new domain.
Simply create a new domain using the command line ems_domain --create ...
Then copy the namelist.wps file from the static folder in your old domain to the static folder in the new domain (overwrite the existing namelist.wps).
Then finally run
Code: Select all
ems_domain --localize