[Ncep.list.emc.nmmb-questions-and-answers] t2m, rh2m, u10m, ... at t=0

[Marco Biordi]

We're using 3600.

Anyway keep this value to be an integer multiple of the time step,
elsewhere give error.

Marco

2018-04-20 9:50 GMT+00:00 Pau <pescribaa at aemet.es>:

> Hi Marco,
>
> Thanks very much for the answer, we are going to test it right now.
>
> We should see if DFI changes our verification scores but I would expect it
> doesn't, taking into account we are not doing analysis cycling with NMMB.
>
> Just a small question, apart from filter_method=3, are using the regular
> values for filtering parameters:
>
> nsecs_bcktdfi: 3600         # HALF backward filter window (s)        (TDFI)
> nsecs_fwdtdfi: 3600         # HALF forward filter window (s)         (TDFI)
>
> ?
>
> In our case we are running with around 2.5 km horizontal resolution and
> 5.625 seconds of time step. Probably we should make some tunning of this
> parameters...
>
> Many thanks.
>
> Pau
>
> El 20/04/18 a les 10:37, Marco Biordi ha escrit:
>
> Hello Pau,
>
> you can get t=0 missing parameters when you enable the Digital Filter
> Initialization.
>
> Do that by setting configuration option "filter_method" to value 1 or 2 or
> 3 (usual one).
>
> Regards
>
> Marco Biordi
>
> San Marino Republic Weather Forecast Center
> meteo.sm
>
>
> 2018-04-20 8:26 GMT+00:00 Pau <pescribaa at aemet.es>:
>
>> Hello all,
>>
>> I am a new user of NMMB model. I work at the Spanish Met Agency with
>> several NWP-LAM models. We are running daily NMMB at home and we see
>> that, after UPP processing, we don't get some surface parameters like
>> t2m, rh2m, u10m, v10m or visibility, at t=0, but we do for any lead time
>> t>0. After dedicating some time to look to UPP and NMMB user's guides
>> and namelists, I am quite sure this variables cannot be got in an easy
>> manner for t=0. Could anybody confirm me this? In such a case, we have
>> to do some further final work with vertical interpolations and so.
>>
>> Thanks in advance!
>>
>> Pau Escriba
>>
>> Spanish Met Agency (AEMET)
>>
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>
>
>
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