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

[Sébastien POITEVIN]

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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