How to get GRIB data with multiple variables

Hi all,

I would like to get some ERA5 hourly data at single levels for some variables, through the CDS Toolbox. I have a few issues :

Even if I use the key "'format' : 'grib'", I get netCDF files in output (see the code below), and this whatever the variable chosen. I would like to have GRIB data only.
Is there any better way to have data for multiple variables ? I have here a code that I have to run for each variable, however I would like to have all variables needed downloaded. I tried using " 'variables' : '<var1>','<var2>' " but it only downloads the first variable.
And by chance, does someone know how to download automatically (without having to click on the link after the code has been run ?)

Thanks a lot ! My code is the one below :

--------------------------

import cdstoolbox as ct

variables = {
    'Near-Surface Air Temperature': '2m_temperature',
    'Eastward Near-Surface Wind': '10m_u_component_of_wind',
}
@ct.input.dropdown('variable', label='Variable', values=variables.keys())
@ct.application(title='Hello World!')
@ct.output.download()
def application(variable):

    data = ct.catalogue.retrieve(
        'reanalysis-era5-single-levels',
        {
            'product_type':'reanalysis',
            'format':'grib',
            'area':           '47.00/-1.00/45.00/1.00',
            'variable': variables[variable],
            'year':'2005',
            'month':'03',
            'day':'04',
            'time':[
                '03:00','04:00','05:00',
                '06:00','07:00','08:00',
                '09:00'
            ]
        })
    return data

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4 Comments

Kevin Marsh

Julien Fornasari

Kevin Marsh

Milana Vuckovic