Example of how to download CAMS data
The following is a quick guide to downloading CAMS data. The example is for black carbon aerosol mixing ratio from the CAMS near-real-time dataset.
- Visit and log in at the interactive web interface (if necessary create an account first):
- Select month
- Month and year of the data to download
- Select time
- Time of the CAMS analysis in UTC
- Select step
- Number of hours in the CAMS forecast in hours from the analysis time
- step=0 will return data at the analysis time, step=12 will return forecast data 12 hours after the analysis time
- Select level and parameter
- Under "Type of level" at the left of the screen choose "Pressure levels" so that each parameter is available on different vertical pressure levels
- parameter=Hydrophilic/Hydrophobic Black Carbon Aerosol Mixing Ratio at 1000-100 hPa will return the 3-D mixing ratio at all selected pressure levels in the troposphere
- Selecting "Surface" as the type of level will show parameters such as total columns of atmospheric constituents, aerosol optical depth, and surface PM2.5/PM10
- Download data
- Click "Retrieve NetCDF" to request the data from the ECMWF archive system and download a netCDF file containing the requested data
- for advanced users the "View the MARS request" link can be used to access CAMS data via API using python
Last modified: Thursday, 7 November 2019, 9:51 AM