运行WRF模型的real,需要哪些字段，如何测试获取必要字段?

本文详细介绍了WRF模型预处理过程中Vtable文件的使用，通过美国GFS实例展示了如何根据需求调整Vtable中子段定义，以实现不同条件下的数据处理。

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WRF模型的预处理WPS工具下有个Vtable文件，可以通过删除/增加Vtable中的子段定义来测试。

以美国GFS为例：

Vtable文件测试:

一、不包括海洋，必须子段如下：

     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 |
-----+------+------+------+----------+---------+-----------------------------------------+-----------------------+

二、包括海洋，必须子段如下：

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 |
81 |   1 |   0 |      | LANDSEA | proprtn | Land/Sea flag (1=land, 0 or 2=sea)      | 2 | 0 | 0 |   1 |
11 |   1 |   0 |      | SKINTEMP | K       | Skin temperature (can use for SST also) | 0 | 0 | 0 |   1 |
-----+------+------+------+----------+---------+-----------------------------------------+-----------------------+