...

The ECMWF FTP service provides access to real-time data from the CAMS global atmospheric composition system. For product documentation please see here. For a description of the current global model please see here (including information on system upgrades) . For other data access options please see here.

Please see the list of available atmospheric available atmospheric composition variables below and make sure your variables of interest are available. Please create an query Should you require any additional species, please raise a request through the ECMWF Support Portal (Charts and Data > Get our products ) if you require any additional speciesECMWF login required).

User accounts

To get access to CAMS global data, you need user accounts on the ECMWF website, and on the ECMWF FTP service.

1. Log on to www.ecmwf.int. (If you do not have an account create one)
2. Read the CAMS data licence and accept the license at the bottom of the page.
3. Contact us by creating a ticket through the ECMWF Support Portal (Charts and Data > Get our products ), providing 
   1. the user name you used to log into www.ecmwf.int and accept the license
   2. for our service planning, a brief description of how you intend to use the data, and which chemical species are most relevant for you

...