Run a pre-existing recipe

CSET works by running recipes that describe how to transform and and visualise data. It comes with a collection of pre-written recipes to get you started. In this tutorial you will use CSET to plot the mean surface air temperature of a forecast.

We will create a basic spatial plot of the mean surface air temperature, using a pre-existing recipe. Download the following recipe: air_temperature_spatial_plot.yaml

Now you need to find some data to process. Download the following example file: air_temp.nc

Now we are ready to run our recipe. This is where we use the cset bake command. This takes the input data file, an output path and the recipe file. The output should be a directory, but it will be created if it does not exist.

cset bake -i air_temp.nc -o output/ -r air_temperature_spatial_plot.yaml

This will run the recipe and leave its output in the specified output directory. You can look at the visualised output with xdg-open output/index.html.

You’ve now successfully run CSET with a pre-existing recipe. In the next tutorial we will see what is going on inside.