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Task 1: Visualise observations and ECMWF analyses

 

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titleKey points

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titleMetview icons

For this task, use the metview icons in the row labelled 'Analysis'

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titlePlot analyses 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.

 

Info
titleChange plot fields

For the 'an_1x1.mv' icon, the plot contents can be changed by editing the plot1 variable in the macro. By default the 10m wind is shown.

To alter the plotted field, right-click and choose 'Edit'.

It is possible to overlay multiple fields 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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titleChange plot appearance

 The number of maps appearing in the plot layout can be 1, 2, 3 or 4.

Macro an_2x2.mv demonstrates how to plot a four-map layout in a similar fashion to the one-map layout. The only difference here is that you need to define four plots instead of one.

Right-click on the icon and select 'Edit'. Change the plot layout like this:

Two map types are available covering a different area.

With mapType=0, the map will cover a smaller geographical area centred on the UK.

With mapType=1, the map will cover most of the North Atlantic

 

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titleKey points
  1. Examine windgust observations. Note the observed area of strongest windgusts and their intensity.
  2. How does the analyses compare with the observations?
  3. Understand the storm development from the ECMWF analyses.
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titleTeam : Getting started
  1. Start with an_1x1.mv with mapType=1 to see the large scale.
    Everyone should plot the mean-sea-level-pressure (mslp) and 10m wind-gust, over each 3hr period, (wgust10) plots. Remember you can overlay two or more variables as shown above.
  2. Each team member can then choose their own parameters; look at the fields on different pressure levels; use the smaller geographical area (mapType=0) to compare with the observations.
  3. Discuss the storm characteristics and development.

If you prefer to see multiple plots per page rather than overlay them, please use the an_2x2.mv macro.

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Task 2: Visualise operational HIRES forecast

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