The visualization package contains the following folders and file:
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title | Content of the visualization package |
Description macros : Metview visualization macros
definitions :
place of some external functions and macros used by the macros
input
: input directory for the input files (downloaded and prepared based on the instruction above)
figs : output directory for the figures
README :
description about the content of the visualization package
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CSS Stylesheet |
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Using the Metview macros
(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.
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<p>
The prepared Metview macros use some external functions, macros and colour definitions which are placed in the <a href="http://download.ecmwf.int/test-data/openifs/reference_casestudies/programs/metview/definitions/" target="_blank"><span class="font_code">definitions</span></a> directory.
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File name
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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 is 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 ICM* files as input: 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.
The files have to be placed in the ${INPUTDIR}/${expID} folder, where INPUTDIR is the input directory specified when calling the macro. - 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.
The files have to be placed in the ${INPUTDIR}/${expID} folder, where INPUTDIR is the input directory specified when calling the macro. - 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).
The files have to be placed in the ${INPUTDIR}/reference folder, where INPUTDIR is the input directory specified when calling the macro.
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Please note that the Metview macros expect only specifying ${INPUTDIR}/ as input directory without adding any further subdirectories (i.e, ${expID} or reference folders) into the command line. |
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Output figuresAll the macros produce figures in single-page .ps files (see Figure 1) with the following file names:
The .ps files can be transformed in raster format, e.g., into .png files using the convert command. (Please note that convert requires the ImageMagick software to be installed.) Setting the resolution to 120 DPI generates sharp images with limited file size:
Running the Metview macros results in a large number of figures. To have an overview on them, based on the .png files a catalogue can be prepared which contains all relevant plots for the selected variable and a given investigation aspect (e.g., to study the impact of resolution changes in the forecast) in a concise format (click below and see Figure 2 for illustration). To quickly generate such an album, 2 possibilities are provided for the users: (1) the Macro functionality of Microsoft Office Word and (2) HTML templates. |
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The provided Word macros (in MS Office 2013) create a table with figures for a given meteorological variable in each evaluation time step (i.e., in every 3 hours between 00 UTC 5 December and 00 UTC 6 December) from all the relevant case study.
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Description plot_raw_IC.mv : Metview macro to visualize the raw initial conditions for 2 experiments and the difference between them
plot_forecastrun.mv : Metview macro to visualize the results of forecast experiments
plot_ERAI_ERA5.mv : Metview macro to visualize the ERA-Interim or ERA5 data
raw_IC_dialog : Metview dialogue box (in macro language) to
plot_raw_IC.mv
forecastrun_dialog : Metview dialogue box (in macro language)
to plot_forecastrun.mv
ERAI_ERA5_dialog : Metview dialogue box (in macro language)
to plot_ERAI_ERA5.mv
help_plot_raw_IC : help file
to
plot_raw_IC.mv
help_plot_forecastrun : help file
to
plot_forecastrun.mv
help_plot_ERAI_ERA5 : help file
to
plot_ERAI_ERA5.mv
scr_run_macros : shell script to execute the Metview macros
The visualisation can be done by the Metview macros (*.mv files) in the ways: (1) interactively using a dialogue box or (2) in batch mode.
(1) Interactive dialogue box
With right click on the macro and then selecting the Execute
option from the menu, the settings can be seen in a dialogue box:
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title | Settings of surface and upper level parameters |
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surface parameters
in raw_IC_dialog: 3 variables are available for visualisation, soil level temperature 2, surface pressure, (model) orography;
model level parameters
in raw_IC_dialog: 4 variables are available for visualisation, temperature, wind, specific humidity, cloud cover;
model levels
for model level variables: from 1 (uppest) to 91 (lowest);
surface parameters
in forecastrun_dialog and ERAI_ERA5_dialog: 4 variables are available, 2-meter temperature, mean sea level pressure, precipitation, 10-meter wind gust;
pressure level parameters
in forecastrun_dialog and ERAI_ERA5_dialog: 5 variables are available, temperature at 850 hPa, geopotential at 500 hPa, wind at 250 and 100 hPa, relative humidity at 700 hPa;
pressure levels
for pressure level variables: 850, 700, 500, 250, 100 hPa;
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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Please note that to visualise different atmospheric variables on different levels (e.g., temperature at 850 hPa and humidity at 700 hPa), the macro has to be run separately with the two settings. |
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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_raw_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
The prepared Metview macros use some external functions, macros and colour definitions which are placed in the definitions directory.
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borderWidth | 1 |
borderStyle | solid |
title | The external functions located in definitions directory |
Description build_layout_2plus1 : layout definition with 2 left panels and 1 right panel
build_layout_single : layout definition a single panel
titlemain : title style for the main plot
titlemain_2L : 2-line title style for the main plot
titlepanels : title style for the individual panels
legend_main : legend definition for a single page
legend_shade : legend definition for left panels
legend_diff : legend definition for right panel (for the difference field)
base_visdef : colour definitions for the different variables
diff_range : dynamic colour definitions for the difference fields
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 2 include statements in the plot_raw_IC.mv, 1 and 1 in the plot_forecastrun.mv and the plot_ERAI_ERA5.mv macros, 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_raw_IC.mv expects the raw ICM* files as input: ICMCL${expID}INIT, ICMGG${expID}INIT, ICMGG${expID}INIUA, ICMSH${expID}INIT, where expID is the 4-digit experiment ID.
- Macros plot_forecastrun.mv expect 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 expect 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 the Microsoft Office programme can be used. |
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Figure 1: Exemplary output figure (here: 3-hourly 10-meter wind gust at 00 UTC on 5 December 2015 from the T255L91 OpenIFS forecasts initialized from ERA-Interim at 00 UTC on 4 December 2015).
title | Click here to see the steps needed to quickly create a catalogue: |
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- Convert the .ps files into .png files (images with 120 DPI are sharp enough with limited file size): convert -density 120 psfile pngfile
- Choose a variable (e.g., T850) and open one of the .docx files in the figs/docs directory (initial_condition_t850_table.docx). Delete all figures from the table, but keep the table itself as it is.
- Click on the
View macros
menu item in Macros menu point on View tab (in MS Office 2013) and edit the macro aainsertpicsOIFS_initialconditions. The macro source code can be seen in the opening window. The directory paths and file names can be replaced here to paths and file names valid in the local environment. This replacement can be done automatically withCTRL+H.
Afterwards the macro has to be saved. - Then return to the the main document, position the cursor into the cell of the first picture and run the macro (with clicking on the
View macros
menu item in Macros menu point on View tab and running the macro aainsertpicsOIFS_initialconditions). - Save the document at the end of the macro run. The same can be repeated for all the variables.
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To prepare similar document for comparison of impact of resolution and startdate, the corresponding *resolution.docx, *startdate.docx files and aainsertpicsOIFS_resolutions, aainsertpicsOIFS_startdates macros have to be used. |
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There are separate macros for precipitation figures as in this case 24-hour amount is evaluated instead of precipitation between 2 time steps (see macros aainsertprecpics*). |
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Figure 2: Illustration of the catalogue constructed from the output figures (here: 3-hourly 10-meter wind gust from ERA-Interim and ERA5 re-analyses and the T255L91 OpenIFS forecasts initialized from ERA-Interim on different dates).