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Starting up metview
Before starting metview, you may need to type a command to copy the exercise files to your user account.
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metview |
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For this task, use the metview icons in the row labelled 'Analysis'
an_1x1.mv : this will plot a selection of parameters overlaid on one plot. an_2x2.mv : this will plot a selection of parameters four plots to a page (two by two). |
Getting started
Task 1: Mean-sea-level pressure & wind gust
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After a few seconds, this will generate a map showing two parameters: mean-sea-level pressure (MSLP) and 3hrly max wind-gust at 10m (wgust10).
Note that as only 6hrly wind gust data is available from the operational forecasts, we have supplemented the 3hrly fields using forecast data
Use the play button 
In the plot window, use the play button in the animation controls 
to animate the map and follow the development and track of the storm.
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Change, mapType=0 to mapType=1 then click the play button 
at the top of the window (please ask if you are not sure).
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#Define plot list (min 1 - max 4) plot1=["mslpwgust10","wgust10mslp","wind10"] |
As above, click the play button and then animate the map that appears. You might also want to change the mapType back to 'mapType=1' to show the larger geographical area.
Discuss the storm development and behaviour with your colleagues & team members.
If you prefer to see multiple plots per page rather than overlay them, please use the an_2x2.mv macro.
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That completes the first exercise. |
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- Explore the storm development and passage using the other parameters available on other pressure levels.
- More explanation of how to use the Metview macro icons to alter the fields plotted are shown below.
If you prefer to see multiple plots per page rather than overlay them, please use the an_2x2.mv macro.
How to plot in various layouts
Icon 'an_1x1.mv' produces a single plot on the page.
Icon 'an_2x2.mv' can produce up to 4 plots per page.
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| How to change the parameters in the plot |
For the 'an_1x1.mv' icon, the plot contents can be changed by editing the plot1 variable in the macro as shown in the above first exercise.
To alter the plotted field, right-click and choose 'Edit'.
It is possible to overlay multiple fields by putting them in square brackets like this:
You will find a list of available parameters in the macro.
After editing the macro text, you can optionally save using the 'File' menu and 'Save'.
Display the plot by clicking:
Animate the plots in the display window by clicking
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