Basic Example

Ensemble Tools have many features. In this example we show how we can use it to download, plot and save weather data as a compressed netCDF.

from enstools.opendata import retrieve_nwp

# download the ICON-EU 24h forecast from today 00 UTC.
grib_file = retrieve_nwp(variable=["tot_prec"],
                         model="icon-eu",
                         grid_type="regular-lat-lon",
                         level_type="single",
                         init_time=0,
                         forecast_hour=[24],
                         dest=args.data,
                         merge_files=True)



# read the grib file using enstools.io.read
import enstools.io

with enstools.io.read(grib_file) as dataset:

    # create a basic contour plot and show it
    import matplotlib.pyplot as plt
    import enstools.plot
    fig, ax = enstools.plot.contour(dataset["tp"][0, :, :], coastlines="50m")

    plt.show()


    # Save the dataset using lossy compression
    enstools.io.write(dataset, "my_new_file.nc", compression="lossy,sz,pw_rel,1.e-5")

Explore the User Guide to find more examples!