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changes.mady.by.user Sandor Kertesz

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changes.mady.by.user Iain Russell

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Time Height Matrix
Time Value Curve
Profile

Visualising a parameter as a time/value curve

Create a new SCM Visualiser icon and edit it. Drop your SCM Run icon into the Scm Data parameter box in the SCM Visualiser icon editor.

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Make sure that only your desired variable is selected - you will have to de-select t_skin. Apply (save) the icon and right-click | Visualise it to get an on-screen plot.

Comparing the outputs of two SCM runs

To compare your two runs, set Scm Compare Data to On and drop your SCM Run 2 icon into the Scm Comparison Data icon box. Apply, then visualise. 

Other visualisation types

To generate a different plot, but keep these settings, make a copy of your Scm Visualiser icon and edit this copy.

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Scm Plot TypeTime Height Matrix
Scm Output 2d VariablesLw Radiative Flux

If comparing two SCM runs, the first will be represented with coloured shading, whilst the second will be drawn with isolines only.

 

To obtain a set of profiles, try these settings:

Scm Plot TypeProfile
Scm Output 2d VariablesTemperature

The Profile option produces a set of curves, with the intensity of the line colour representing the time step (the most intense, and dashed, line is time zero). The Scm Times parameter specifies the time slices to use (specified in minutes).

Plotting the difference between two SCM runs

The other way of visualising the differences between two runs is to set Scm Comparison Mode to Difference. In this mode, Metview will not overlay the data, but will compute the differences between the two runs and plot these differences in the desired Scm Plot Type.

Additional information about plotting

Info
  • For all plot types, it is possible to select multiple variables, but in this case, Scm Output Mode must be set to Postscript. This limitation should be lifted in the future.
Info
  • The Scm Visualiser also contains parameters which can be used to change the x and y axis limits, and also to set the limits on the value range considered for shading in the matrix plots. An axis grid can also be enabled.
Info
  • The Scm Visualiser can also be used to plot the SCM input netCDF files - set Scm Data Type to Input; the parameters Scm Input 1d Variables and Scm Input 2d Variables become available.