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class=mc expver=0079 |
You can use this link to directly access the data in the MARS catalogue (please remember that ecCodes version 2.28.0 or later is required to handle the full range of parameters of current CAMS data).
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You can use existing requests for the CAMS global atmospheric composition dataset by replacing the dataset name with "cams-global-atmospheric-composition-forecasts-test".
Example
Get variables available from previous IFS Cycle 48r1:
Anthropogenic secondary organic aerosol mass mixing ratio (pressure or model level)
Biogenic secondary organic aerosol mass mixing ratio (pressure or model level)
Glyoxal (pressure or model level)
Secondary organic aerosol optical depth 550nm (surface)
Total column glyoxal (surface)
Select only European domain, 10 dates and day 1 forecast (from hour 0 to 24):
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import cdsapi
c = cdsapi.Client()
c.retrieve(
'cams-global-atmospheric-composition-forecasts-test',
{
'date': '2024-09-01/2024-09-10',
'type': 'forecast',
'format': 'netcdf_zip',
'model_level': '137', # Lowest model level only
'variable': [ 'biogenic_secondary_organic_aerosol_mass_mixing_ratio',
'anthropogenic_secondary_organic_aerosol_mass_mixing_ratio',
'glyoxal',
'secondary_organic_aerosol_optical_depth_550nm',
'total_column_glyoxal' ], # See other variables at:
'time': '00:00', # https://ads.atmosphere.copernicus.eu/datasets/cams-global-atmospheric-composition-forecasts?tab=download
'leadtime_hour': [h for h in range(0,25,3)],
'area': [70, -35, 35, 60] # [N,W,S,E] Europe area boundaries
},
'/tmp/cams_test_20240901_10.nc.zip') |
FTP dissemination
The test dataset is available through ECPDS FTP dissemination systems in these directories:
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