[Wrf-users] How to modify Vtable for GFS 0.25 degree

Tue Dec 9 06:43:27 MST 2014

Hi all 
I made the following changes (sorry for bad template) 
You need to set the ST Grib2 discp and Param to 2 

Francesco 

GRIB1| Level| From | To | metgrid | metgrid | metgrid |GRIB2|GRIB2|GRIB2|GRIB2| 
Param| Type |Level1|Level2| Name | Units | Description |Discp|Catgy|Param|Level| 
-----+------+------+------+----------+---------+-----------------------------------------+-----------------------+ 
11 | 100 | * | | TT | K | Temperature | 0 | 0 | 0 | 100 | 
33 | 100 | * | | UU | m s-1 | U | 0 | 2 | 2 | 100 | 
34 | 100 | * | | VV | m s-1 | V | 0 | 2 | 3 | 100 | 
52 | 100 | * | | RH | % | Relative Humidity | 0 | 1 | 1 | 100 | 
7 | 100 | * | | HGT | m | Height | 0 | 3 | 5 | 100 | 
11 | 105 | 2 | | TT | K | Temperature at 2 m | 0 | 0 | 0 | 103 | 
52 | 105 | 2 | | RH | % | Relative Humidity at 2 m | 0 | 1 | 1 | 103 | 
33 | 105 | 10 | | UU | m s-1 | U at 10 m | 0 | 2 | 2 | 103 | 
34 | 105 | 10 | | VV | m s-1 | V at 10 m | 0 | 2 | 3 | 103 | 
1 | 1 | 0 | | PSFC | Pa | Surface Pressure | 0 | 3 | 0 | 1 | 
2 | 102 | 0 | | PMSL | Pa | Sea-level Pressure | 0 | 3 | 1 | 101 | 
144 | 112 | 0 | 10 | SM000010 | kg m-3 | Soil Moist 0-10 cm below grn layer (Up) | 2 | 0 | 192 | 106 | 
144 | 112 | 10 | 40 | SM010040 | kg m-3 | Soil Moist 10-40 cm below grn layer | 2 | 0 | 192 | 106 | 
144 | 112 | 40 | 100 | SM040100 | kg m-3 | Soil Moist 40-100 cm below grn layer | 2 | 0 | 192 | 106 | 
144 | 112 | 100 | 200 | SM100200 | kg m-3 | Soil Moist 100-200 cm below gr layer | 2 | 0 | 192 | 106 | 
144 | 112 | 10 | 200 | SM010200 | kg m-3 | Soil Moist 10-200 cm below gr layer | 2 | 0 | 192 | 106 | 
11 | 112 | 0 | 10 | ST000010 | K | T 0-10 cm below ground layer (Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 10 | 40 | ST010040 | K | T 10-40 cm below ground layer (Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 40 | 100 | ST040100 | K | T 40-100 cm below ground layer (Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 100 | 200 | ST100200 | K | T 100-200 cm below ground layer (Bottom)| 2 | 0 | 2 | 106 | 
11 | 112 | 10 | 200 | ST010200 | K | T 10-200 cm below ground layer (Bottom) | 2 | 0 | 2 | 106 | 
91 | 1 | 0 | | SEAICE | proprtn | Ice flag | 10 | 2 | 0 | 1 | 
81 | 1 | 0 | | LANDSEA | proprtn | Land/Sea flag (1=land, 0 or 2=sea) | 2 | 0 | 0 | 1 | 
7 | 1 | 0 | | SOILHGT | m | Terrain field of source analysis | 0 | 3 | 5 | 1 | 
11 | 1 | 0 | | SKINTEMP | K | Skin temperature (can use for SST also) | 0 | 0 | 0 | 1 | 
65 | 1 | 0 | | SNOW | kg m-2 | Water equivalent snow depth | 0 | 1 | 13 | 1 | 
224 | 1 | 0 | | SOILCAT | Tab4.213| Dominant soil type cat.(not in GFS file)| 2 | 3 | 0 | 1 | 
225 | 1 | 0 | | VEGCAT | Tab4.212| Dominant land use cat. (not in GFS file)| 2 | 0 | 198 | 1 | 
-----+------+------+------+----------+---------+-----------------------------------------+-----------------------+ 

----- Messaggio originale -----

Da: wrf-users-request at ucar.edu 
A: wrf-users at ucar.edu 
Inviato: Venerdì, 5 dicembre 2014 20:00:11 
Oggetto: Wrf-users Digest, Vol 124, Issue 7 

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Today's Topics: 

1. How to modify Vtable for GFS 0.25 degree ? (S?bastien POITEVIN) 

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Message: 1 
Date: Fri, 5 Dec 2014 12:26:43 +0100 
From: S?bastien POITEVIN <sebastien.poitevin at meteoconsult.com> 
Subject: [Wrf-users] How to modify Vtable for GFS 0.25 degree ? 
To: wrf-users at ucar.edu 
Message-ID: 
<CABfMj0QVcEyQerB8qCp-y5AQD_Ei6MYJBjJfU+eR8cFtBrxbFA at mail.gmail.com> 
Content-Type: text/plain; charset="utf-8" 

Hi all, 

With implementation of new GFS 0.25 degree, TMP at 0-0.1 m, 0.1-0.4 m, 
0.4-1.0 m, and 1-2 m will be renamed to the more accurate name of Soil 
Temperature (TSOIL) 

This will require a change to the Vtable.GFS file for the ungrib program to 
pick up the renamed fields. 

I have tested unsuccessfully these changes in Vtable.GFS : 

Test n?1 : 

>From the current Vtable.GFS ..... 
11 | 112 | 0 | 10 | ST000010 | K | T 0-10 cm below ground layer 
(Upper) | 0 | 0 | 0 | 106 | 
11 | 112 | 10 | 40 | ST010040 | K | T 10-40 cm below ground 
layer (Upper) | 0 | 0 | 0 | 106 | 
11 | 112 | 40 | 100 | ST040100 | K | T 40-100 cm below ground 
layer (Upper) | 0 | 0 | 0 | 106 | 
11 | 112 | 100 | 200 | ST100200 | K | T 100-200 cm below ground 
layer (Bottom)| 0 | 0 | 0 | 106 | 
11 | 112 | 10 | 200 | ST010200 | K | T 10-200 cm below ground 
layer (Bottom) | 0 | 0 | 0 | 106 | 

The updated Vtable.GFS lines.... 
11 | 112 | 0 | 10 | ST000010 | K | T 0-10 cm below ground layer 
(Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 10 | 40 | ST010040 | K | T 10-40 cm below ground 
layer (Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 40 | 100 | ST040100 | K | T 40-100 cm below ground 
layer (Upper) | 2 | 0 | 2 | 106 | 
11 | 112 | 100 | 200 | ST100200 | K | T 100-200 cm below ground 
layer (Bottom)| 2 | 0 | 2 | 106 | 
11 | 112 | 10 | 200 | ST010200 | K | T 10-200 cm below ground 
layer (Bottom) | 0 | 0 | 2 | 106 | 

Test n?2 : 

The updated Vtable.GFS lines.... 
2 | 112 | 0 | 10 | ST000010 | K | T 0-10 cm below ground layer 
(Upper) | 2 | 0 | 2 | 106 | 
2 | 112 | 10 | 40 | ST010040 | K | T 10-40 cm below ground layer 
(Upper) | 2 | 0 | 2 | 106 | 
2 | 112 | 40 | 100 | ST040100 | K | T 40-100 cm below ground 
layer (Upper) | 2 | 0 | 2 | 106 | 
2 | 112 | 100 | 200 | ST100200 | K | T 100-200 cm below ground 
layer (Bottom)| 2 | 0 | 2 | 106 | 
2 | 112 | 10 | 200 | ST010200 | K | T 10-200 cm below ground 
layer (Bottom) | 2 | 0 | 2 | 106 | 

Does anyone have other suggestions? 

Thanks in advance. 

Sebastien Poitevin 

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Ricercatore CNR-IBIMET (www.ibimet.cnr.it) 
Researcher CNR-IBIMET. 

Previsore Consorzio LaMMA (www.lamma.rete.toscana.it) 
Weather Forecaster LaMMA Consortium 

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