The dataset is covering the period from 1 Nov 2015 until 16 Dec 2015 (status on 8 Mar 2016).

MARS

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

class=mc
expver=0067

WebAPI service

If you don't have access to ECMWF computers but would still like to access a large subset of test data to validate your systems 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.

Examples

Total aerosol optical depth at 550 nm in NetCDF format, only European domain, all the available steps, November 2015

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "dataset": "cams_nrealtime_test",
    "stream": "oper",
    "type": "fc",
    "date": "20151101/to/20151130",
    "time": "00",    
    "step":"0/to/120/by/1",
    "levtype":"sfc",
    "param" : "aod550",       # see parameter table at http://macc.copernicus-atmosphere.eu/oper_info/global_nrt_data_access/ftp/20150911_cams_upgrade/
    "grid": "0.4/0.4",        # 0.4˘ x 0.4˘ regular lat-lon grid
    "area": "70/-35/35/60",   # N/E/S/W area boundaries
    "format": "netcdf",
    "target": "/tmp/cams_nrealtime_test.grib"
})

ECPDS dissemination

The dataset will be made available through operational ECPDS dissemination. The list of parameters will be the same as in the current global data stream but at the higher horizontal resolution.

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: