Using the Metview macros
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The visualization can be done by the Metview macros (*.mv files) in two ways: (1) interactively using a dialogue box or (2) in batch mode.
(1) Interactive dialogue box
After opening Metview, with right mouse click on the macro icon and then selecting the Execute option from the menu, a dialogue box pops up showing the possible settings:
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Multiple variables (both surface and model/pressure level ones) can be selected at the same time. In case of choosing any model or pressure level parameters, selecting also (at least) one model or pressure level should not be forgotten (multiple options are possible also here).
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(2) Batch mode
In batch mode the macro can be executed following the next syntax:
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% metview -b macro option1 option2 option3 ... |
where macro is the macro to be run (plot_IC.mv, plot_forecastrun.mv or plot_ERAI_ERA5.mv); option1, option2 etc. are the settings listed above. A detailed help together with some useful examples is provided with simple execution of the macro:
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% metview -b macro |
The shell script scr_run_macros executes the macros from the UNIX/Linux shell and it can be tailored for the own needs.
External functions and macros
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<p> The prepared Metview macros use some external functions, macros and colour definitions which are placed in the <a href="https://software.ecmwf.int/stash/projects/OIFS/repos/oifs40r1/browse/definitions?at=refs%2Fheads%2Fevaluation" target="_blank"><span class="font_code">definitions</span></a> directory. </p> |
The prepared Metview macros use some external functions, macros and colour definitions which are placed in the definitions directory.
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To reach these functions and colour definitions, the path of the definitions directory has to be added to the METVIEW_MACRO_PATH (e.g., in .bashrc).
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Please note that there are an include statement in the plot_forecastrun.mv and the plot_ERAI_ERA5.mv macros and further 2 ones in the plot_IC.mv, taking the two colour definitions (base_visdef and diff_range) from this directory. The path of the definitions directory has to be set in the downloaded macros according to the local working tree (it is necessary because using dynamic path with include is not possible in the macro language). |
Input data
The input data are requested with the following content, format and name convention:
- Macro plot_IC.mv expects the raw ICM* files as input: ICMCL${expID}INIT_${date}, ICMGG${expID}INIT_${date}, ICMGG${expID}INIUA _${date} , ICMSH${expID}INIT _${date} , where
expID is the 4-digit experiment ID;
date is day in format yyyymmdd. - Macros plot_forecastrun.mv expects grib files as input with the following file names: ${variable}_${date}.grib, where
variable can be t2, mslp, p, gust, t850, q700, z500, u250, u100;
date is day in format yyyymmdd. - Macro plot_ERAI_ERA5.mv expects grib files as input with the following file names: ${referenceID}_${variable}_${period}.grib, where
referenceID is ei for ERA-Interim and ea for ERA5;
variable can be t2, mslp, p, gust, t850, q700, z500, u250, u100;
period is the investigated time period in format of yyyymmdd-yyyymmdd (e.g., 20151201-20151206 for Desmond).
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Output figuresAll the macros produce figures in single-page .ps files (see Figure 1) with the following file names:
Running the Metview macros results in a large number of figures. To have an overview on them, a catalogue can be prepared which contains all relevant plots for the selected variable and a given investigation aspect in a concise format (click below and see Figure 2 for illustration). To quickly generate this kind of album, the Macro functionality of Microsoft Office Word can be used. |
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