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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 new variables available from 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)
Glyoxal
Total column glyoxal
...
(surface)
Select only European domain, 10 dates
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and day 1 forecast (from hour 0 to 24):
| Code Block | ||||
|---|---|---|---|---|
| ||||
import cdsapi
c = cdsapi.Client()
c.retrieve(
'cams-global-atmospheric-composition-forecasts-test',
{
'date': '2023-0304-01/2023-0304-10',
'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',
'secondary_organic_aerosol_optical_depth_550nmglyoxal',
'glyoxalsecondary_organic_aerosol_optical_depth_550nm',
'total_column_glyoxal' ], # See other available variables at:, # See other available variables at:
'time': '00:00', # https://ads.atmosphere.copernicus.eu/cdsapp#!/dataset/cams-global-atmospheric-composition-forecasts?tab=form
'leadtime_hour': [h for h in range(0,25,243)],
'area': [70, -35, 35, 60] # [N,EW,S,WE] Europe area boundaries
},
'/tmp/cams_test_2023030120230401_10.nc.zip') |
FTP dissemination
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You can use your normal FTP account to access the data. Details about filenames convention or list of available parameters can be found at Copernicus CAMS Knowledge Base.
If everything else fails ...
... you can always contact us by sending an email to copernicus-support@ecmwf.int putting on ECMWF Support Portal creating a ticket "Request for CAMS global test dataset" as a subject and specify:
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