The dataset is covering the period from 1 March 2018 until present.

MARS

If you have access to ECMWF systems you can retrieve test data from MARS archive using keywords:

class=mc
expver=9601
stream=gfas
type=ga

WebAPI service

If you don't have access to ECMWF computers but would still like to access a large subset of test data you can use ECMWF WebAPI service.

Read documentation and see brief request syntax of the ECMWF WebAPI service.

If you haven't done it yet you will need to create an ECMWF web account and accept the data licence.

Example

Altitude of plume top in NetCDF format, only European domain, 10 dates

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class":   "mc",
    "dataset": "cams_gfas",
    "date":    "2018-03-01/to/2018-03-10",
    "expver":  "9601",
    "levtype": "sfc",
    "param":   "120.210",       # see parameter codes at http://apps.ecmwf.int/codes/grib/param-db/
    "step":    "0-24",
    "stream":  "gfas",
    "time":    "00:00:00",
    "type":    "ga",
    "target":  "atp.nc",
    "format":  "netcdf",
    "area":    "70/-35/35/60"   # N/E/S/W area boundaries
})

FTP dissemination

The test dataset is available through ECPDS FTP dissemination systems in this directory:

/DATA/CAMS_TMP/CAMS_GFAS

You can use your normal FTP account to access the data.

If everything else fails ...

... you can always contact us by using this contact form putting "Request for CAMS global test dataset" as a subject and specify: