def METHOD_NAME(cls):
    cube = new_cube(width=36,
                    height=18,
                    x_res=10,
                    time_periods=1,
                    drop_bounds=True,
                    variables=dict(
                        conc_chl=0.8,
                        conc_tsm=4.2,
                    ))
    cube.conc_chl.attrs.update({
        "long_name": "Chlorophyll concentration",
        "units": "mg m^-3"
    })
    cube.conc_tsm.attrs.update({
        "long_name": "Total suspended matter dry weight concentration",
        "units": "g m^-3",
    })
    cube.attrs.update({
        "Conventions": "CF-1.7",
        "coordinates": "time lat lon",
        "TileSize": "1024:1024"  # SNAP adds this to NetCDFs
    })
    cube.to_zarr(cls.CUBE_PATH)