Search found 1601 matches

by meteoadriatic
Wed Nov 20, 2019 10:46 am
Forum: UEMS v18.x support
Topic: How to import high resolution terrain
Replies: 2
Views: 302

Re: How to import high resolution terrain

There was a guide that I used, but I cannot find it online anymore, it looks it dissapeared. However as I downloaded it, I'm putting it for you on my server http://file.meteoadriatic.net/JMeans/guide.pdf As it seems removed from original location, I'm not sure if author wants it to be online anymore...
by meteoadriatic
Mon Nov 11, 2019 8:35 am
Forum: UEMS v18.x support
Topic: Strange extreme low temperature points
Replies: 6
Views: 265

Re: Strange extreme low temperature points

OK that change a lot of things.

Look at geo_em.d01.nc file and see if there are any irregularities around those anomaly areas. Looks like some problems with landmask. See this if helps:
viewtopic.php?f=9&t=1066
by meteoadriatic
Sun Nov 10, 2019 5:00 pm
Forum: UEMS v18.x support
Topic: Strange extreme low temperature points
Replies: 6
Views: 265

Re: Strange extreme low temperature points

Stefano, I see lot of namelist entries that are less than standard choices, and might be a cause of trouble depending on case to case scenario. I will comment on what I see as potential point where you might look for changes that might or might not help but you can try to adjust one by one and see w...
by meteoadriatic
Sun Nov 10, 2019 10:12 am
Forum: UEMS v18.x support
Topic: Strange extreme low temperature points
Replies: 6
Views: 265

Re: Strange extreme low temperature points

Well yes, revert back to NOAH or NOAH-MP and fix source of segfault which is in most cases too large time-step but not always. You might want to post contents of your namelist.input file if you want more suggestion about possible causes of crashes.
by meteoadriatic
Wed Nov 06, 2019 8:04 am
Forum: UEMS v18.x support
Topic: Benchmark Test case 27/04/2011 WRF-ARW
Replies: 9
Views: 459

Re: Benchmark Test case 27/04/2011 WRF-ARW

Those two lines control how many cores you will use. Below that section in the same file are setting for domain decomposition.
by meteoadriatic
Tue Nov 05, 2019 11:46 pm
Forum: UEMS v18.x support
Topic: Benchmark Test case 27/04/2011 WRF-ARW
Replies: 9
Views: 459

Re: Benchmark Test case 27/04/2011 WRF-ARW

It's completely OK/kernel independent. Depending on CPU, you can also try even less number of threads. Why? Because if you have significant turbo boost, it will kick in in full potential probably only when you use less cores. So depending on case to case, you might run faster at higher frequency / l...
by meteoadriatic
Mon Nov 04, 2019 8:24 am
Forum: Hardware for running WRF / EMS
Topic: HPC requirements
Replies: 3
Views: 419

Re: HPC requirements

Figures I provided actually had 2 coarser domains around 300m (1.5km and 7.5km) and their dimensions were again very similar to your requirements for coverage with coarse domains. Moreover, with the figures you gave, and having in mind that resources rise exponentially with increasing resolution, yo...
by meteoadriatic
Thu Oct 31, 2019 6:20 pm
Forum: UEMS v18.x support
Topic: Benchmark Test case 27/04/2011 WRF-ARW
Replies: 9
Views: 459

Re: Benchmark Test case 27/04/2011 WRF-ARW

wrf.exe will use RAM how much it needs to fit domain data and do calculations on it. So, depending on your domain grid size, number of vertical levels, physics used and so on, it will be more or less, but the rest of RAM will stay free; there will be no point of usurp the RAM and then not use it.
by meteoadriatic
Thu Oct 31, 2019 6:15 pm
Forum: Hardware for running WRF / EMS
Topic: HPC requirements
Replies: 3
Views: 419

Re: HPC requirements

Hello First of all you can not do such nesting ratio if you will use normal (synchroneous) nesting type. In such case, ratio must be odd number. 0.5km grid 300x150 km has 1800.000 grid points (domain size 600x300). With this grid distance time step should be around 3 seconds. The similar runs I did ...
by meteoadriatic
Wed Oct 16, 2019 6:59 pm
Forum: General NWP, Postprocessing, Meteorology
Topic: UEMS Postprocessing and displaying results
Replies: 2
Views: 433

Re: UEMS Postprocessing and displaying results

Hello This is actually most tedious part because there is basically no-existent any automation for final products. You need to do it on your own. My recommendation: 1) Go into config of your domain and in post_uems.conf turn on GrADS: GRADS = No (change to YES) Postprocess your run again. Then fire ...