Search found 95 matches

by norulz
Wed Mar 08, 2017 9:50 am
Forum: UEMS v15.x support
Topic: gribinfo.conf for NOMADS Grib Filter
Replies: 6
Views: 4118

Re: gribinfo.conf for NOMADS Grib Filter

Hi Ivan,

I have not been able to make it work. The Prep routines add a 'dset' parameter to the end of the URL and the NOMADS server rejects this with any value as an invalid parameter.

Did you make any other tweaks to the Ptiles.pm script?
by norulz
Tue Mar 07, 2017 4:46 pm
Forum: UEMS v15.x support
Topic: gribinfo.conf for NOMADS Grib Filter
Replies: 6
Views: 4118

Re: gribinfo.conf for NOMADS Grib Filter

Hi Ivan,

Thanks for the details. I'll give it a try ASAP.

David
by norulz
Tue Mar 07, 2017 11:39 am
Forum: UEMS v15.x support
Topic: gribinfo.conf for NOMADS Grib Filter
Replies: 6
Views: 4118

gribinfo.conf for NOMADS Grib Filter

Hi all,

Is it possible to set up a gribinfo.conf file to use the NOMADS grib filter system? This would need to be set to a preset lon/lat and the required variables.

I would like to use such a possibility as a fallback on the ptiles system.

Thanks,
David
by norulz
Tue Mar 07, 2017 11:24 am
Forum: UEMS v15.x support
Topic: About DFI
Replies: 2
Views: 2717

Re: About DFI

Hi Luis,

I use TDFI (DFI_OPT = 3) on all my operational runs and it does a good job of removing start up artefacts.
My outer domains are 12km with 4km nests.
The "price" is only about 5 minutes added to the run times.

David
by norulz
Thu Feb 23, 2017 10:08 pm
Forum: Hardware for running WRF / EMS
Topic: UEMS CPU suggestion
Replies: 4
Views: 5065

Re: UEMS CPU suggestion

Hi, I'm using 12GB RAM in each box and find that this is enough. 3 x 2GB for each CPU i.e 1 memory card for each channel. I had a reduction in speed when I used 16GB as it required 2 cards in one of the memory channels which slowed things down. Sure, let's do a comparison. We can use the benchmark c...
by norulz
Thu Dec 15, 2016 8:29 pm
Forum: UEMS v15.x support
Topic: WRF initializing WRF vs nesting
Replies: 3
Views: 2663

Re: WRF initializing WRF vs nesting

Hi, Thanks for the observation. Adding boundary conditions at every time step should definitely provide better simulation. It may, however actually be slower. My motivation for exploring the option of WRF separate runs stems from looking for better economy in covering much of the Mediterranean with ...
by norulz
Thu Dec 15, 2016 6:01 pm
Forum: UEMS v15.x support
Topic: WRF initializing WRF vs nesting
Replies: 3
Views: 2663

WRF initializing WRF vs nesting

Hi all, I am interested to know if there should be an inherent difference in the simulation output between the two following cases: Case 1. A single 1 way nested run with gfsp25 initializing a WRF run with outer domain having 12km grid and inner nested domain with 4km grid. Case 2. First run gfsp25 ...
by norulz
Sun Oct 09, 2016 6:32 pm
Forum: UEMS v15.x support
Topic: Problems interpolating SST --sfc file
Replies: 2
Views: 4107

Re: Problems interpolating SST --sfc file

Hi Ivan,

Thanks for the input. I"ll give it a try in the coming days.

David
by norulz
Sat Sep 10, 2016 8:17 am
Forum: UEMS v15.x support
Topic: Problems interpolating SST --sfc file
Replies: 2
Views: 4107

Problems interpolating SST --sfc file

Hello users, I am trying to use a high resolution source for SST in the Mediterranean (1km). The Grib file includes only one variable for the temperature and no mask of its own. When using this file I am getting temperature artifacts on coastlines only. I suspect that the problem is a masking issue ...
by norulz
Wed Sep 07, 2016 4:41 pm
Forum: UEMS v15.x support
Topic: Is there really benefit using --sfc rtgsst in the Mediterranean area?
Replies: 7
Views: 5003

Re: Is there really benefit using --sfc rtgsst in the Mediterranean area?

The SST product data sheet: hort description: For the Mediterranean Sea- The CNR MED Sea Surface Temperature provides daily gap-free maps (L4) at 0.0625deg. x 0.0625deg. horizontal resolution over the Mediterranean Sea. The data are obtained from infra-red measurements collected by satellite radiome...