[Wrf-users] Wrf-users Digest, Vol 167, Issue 2

HEDDE Thierry 137147 thierry.hedde at cea.fr
Tue Jul 10 07:29:56 MDT 2018


Hi Tatiana,
The roughness is not directly read into the landuse data but the landuse index is translated into roughness through the LANDUSE.TBL file given with WRF sources ....WRFV3.9.1/test/em_real/LANDUSE.TBL

Extract from LANDUSE.TBL:
-----------------------------------------
USGS
33,2, 'ALBD   SLMO   SFEM   SFZ0 THERIN   SCFX   SFHC   '
SUMMER
1,      15.,   .10,   .88,   80.,    3.,  1.67, 18.9e5,'Urban and Built-Up Land'
2,      17.,   .30,  .985,   15.,    4.,  2.71, 25.0e5,'Dryland Cropland and Pasture'
3,      18.,   .50,  .985,   10.,    4.,  2.20, 25.0e5,'Irrigated Cropland and Pasture'
4,      18.,   .25,  .985,   15.,    4.,  2.56, 25.0e5,'Mixed Dryland/Irrigated Cropland and Pasture'

You may see, that in summer if you're using USGS landuse, the landuse index 1 'urban' will generate a 80cm roughness (SFZ0)

Cheers
Thierry


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Envoyé : lundi 9 juillet 2018 20:00
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Objet : Wrf-users Digest, Vol 167, Issue 2

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Today's Topics:

   1. problem with surface roughness (meteoipb)


----------------------------------------------------------------------

Message: 1
Date: Mon, 9 Jul 2018 10:25:00 +0300
From: meteoipb <meteoipb at ispnpp.kiev.ua>
To: wrf-users at mailman.ucar.edu
Subject: [Wrf-users] problem with surface roughness
Message-ID: <965bac67-fc1e-e3f3-182d-f91b9648ddb1 at ispnpp.kiev.ua>
Content-Type: text/plain; charset="utf-8"; Format="flowed"


    Dear WRF users,
    I reinstalled the WPF-ARF to a new version of VER3.9.1. There was a
    problem with the output of data of the surface roughness after the
    program ended. As far as I understand, these data are formed in the
    geogrid program using landuse data. These data are not available
    when I control output information after WRF is output. How I can get
    data of surface roughess in output data of WRF V 3.9.1.?

    Best regards,
    Tatiana Lev

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