Scope

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.

Scope

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 Please see the list of available atmospheric composition variables below and make sure your variables of interest are available. Please contact us if Should you require any additional species., please raise a request through the ECMWF Support Portal (ECMWF 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 the Licence to Use Copernicus Productsand accept the license at the bottom of the page.
3. Send an email to copernicus-support@ecmwf.intContact us by creating a ticket through the ECMWF Support Portal, 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

Data location

Data location

File naming convention

The file naming convention is based on WMO guidelines as follows:

z_cams_c_ecmf_yyyymmddhhmmss_vvvv_tt_lt_sss_param.[grib|nc]

...

Data organisation

The dataset is grouped by type of product (analysis or forecast), level type (surface parameter, pressure level or model level), by step or forecast range and by parameter. 

...

z_cams_c_ ecmf_20160704000000_prod_fc_pl_012_co.grib contains all the pressure levels of +12 step CO fields from a forecast started on 7 July 2016 at 00:00 UTC.

z_cams_c_ ecmf ecmf_20160704120000_prod_fc_ml_012_go3.nc nc  contains all the model levels of step 12 O3 fields from a forecast which was started on 7 July 2016 at 12:00 UTC in NetCDF format.

Data

...

The latest model cycle based on the 00 UTC analysis is normally available by 10:00 UTC, the cycle based on 12 UTC analysis is available by 22:00 UTC.

After the data transfer to the ftp server is completed a manifest file is uploaded:

z_cams_c_ecmf_yyyymmddhhmmss_vvvv.manifest

The file is uploaded to the server only after all the data files have been successfully uploaded. The file contains a list of all the GRIB and NetCDF files in the cycle and their MD5 checksums in case you would like to verify data integrity.

List of available parameters

format

Model level fields are in GRIB2 format. All other fields are in GRIB1, except for new parameters from cycle 48r1 (more details are available here). NetCDF format is also available.

# CCSDS -> simple

grib_set -r -s packingType=grid_simple in.grib2 out.grib

# Simple -> CCSDS

grib_set -r -s packingType=grid_ccsds in.grib out.grib2

Data availability

The latest model cycle based on the 00 UTC analysis is normally available by 10:00 UTC, the cycle based on 12 UTC analysis is available by 22:00 UTC.

After the data transfer to the ftp server is completed a manifest file is uploaded:

z_cams_c_ecmf_yyyymmddhhmmss_vvvv.manifest

The file is uploaded to the server only after all the data files have been successfully uploaded. The file contains a list of all the GRIB and NetCDF files in the cycle and their MD5 checksums in case you would like to verify data integrity.

List of available parameters

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  expand

  Expand
  title Aerosol
  short name parameter ID name type of variable type of data (an,
  Expand
  title Aerosol
  type of data (an,sfc,pm1fcpm10Particulate aermr01Sea Salt Aerosol (0.03 - 0.5 um) Mixing Ratio fc aermr02Sea Salt Aerosol (0.5 - 5 um) Mixing Ratio fc aermr03Sea Salt Aerosol (5 - 20 um) Mixing Ratio fc aermr04210004Dust 55 aermr05210005Dust 55 0.9 aermr06210006Dust 0.9 aermr07210007Hydrophilic Organic Matter Aerosol aermr08210008Hydrophobic Organic Matter Aerosol aermr09210009Hydrophilic Black Carbon Aerosol Mixing aermr10Hydrophobic Black Carbon short name parameter ID name type of variable fc) type of level (sfc,pl, ml) aod1240 210216 Total Aerosol Optical Depth at 1240nm vertically-integrated  an + fc  sfc aod469 210213 Total Aerosol Optical Depth at 469nm vertically-integrated  an + fc  sfc aod550 210207 Total Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc aod670 210214 Total Aerosol Optical Depth at 670nm vertically-integrated  an + fc  sfc aod865 210215 Total Aerosol Optical Depth at 865nm vertically-integrated  an + fc  sfc bcaod550 210211 Black Carbon Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc duaod550 210209 Dust Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc omaod550 210210 Organic Matter Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc ssaod550 210208 Sea Salt Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc soaod550 215226 Secondary organic aerosol optical depth at 550 nm vertically-integrated  an + fc  sfc suaod550 210212 Sulphate Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc niaod550 210072 Particulate matter d < 1 um surface concentration 210250 Nitrate aerosol optical depth at 550 nm vertically-integrated an + fc  sfc amaod550 210251 Ammonium aerosol optical depth at 550 nm vertically-integrated an + fc  sfc pm1 210072 Particulate matter d < 1 um surface concentration fc sfc pm10 210074 Particulate 210074 matter d < 10 um surface concentration fc sfc pm2p5 210073 Particulate matter d < 2.5 um surface concentration fc sfc aermr01 210001 Sea Salt Aerosol (0.03 - 0.5 um) Mixing Ratio concentration in air an + fc ml + pl aermr02 210002 Sea Salt Aerosol (0.5 - 5 um) Mixing Ratio concentration in air an + fc ml + pl aermr03 210003 Sea Salt Aerosol (5 - 20 um) Mixing Ratio concentration in air an + fc ml + pl aermr04 210004 Dust Aerosol (0.03 - 0.55 um) Mixing Ratio concentration in air an + fc ml + pl aermr05 210005 Dust Aerosol (0.55 - 0.9 um) Mixing Ratio concentration in air an + fc ml + pl aermr06 210006 Dust Aerosol (0.9 - 20 um) Mixing Ratio concentration in air an + fc ml + pl aermr07 210007 Hydrophilic Organic Matter Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr08 210008 Hydrophobic Organic Matter Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr09 210009 Hydrophilic Black Carbon Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr10 210010 Hydrophobic Black Carbon Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr11 210011 Sulphate Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr16 210001 210247 Nitrate fine mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr17 210002 210248 Nitrate coarse mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr18 210003 210249 Ammonium aerosol mass mixing ratio concentration in air an + fc ml + pl aermr01 210001 Sea Salt Aerosol (0.03 - 0. 5 um) Mixing Ratio concentration in air an + fc  ml + pl aermr02 210002 Sea Salt Aerosol (0. 5 - 5 um) Mixing Ratio concentration in air an + fc  ml + pl aermr03 210003 Sea Salt Aerosol ( 5 - 20 um) Mixing Ratio concentration in air an + fc  ml + pl aermr04 210004 Dust Aerosol (0.03 - 0.55 um) Mixing Ratio concentration in air an + fc  ml + pl aermr05 210005 Dust Aerosol (0.55 - 0.9 um) Mixing Ratio concentration in air an + fc  ml + pl aermr06 210006 Dust Aerosol (0.9 - 20 um) Mixing Ratio concentration in air an + fc  ml + pl aermr07 210010 210007 Hydrophilic Organic Matter Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr11aermr08 210011210008 Sulphate Hydrophobic Organic Matter Aerosol Mixing Ratio concentration in air an + fc  ml + pl
  aermr09 210009 Hydrophilic Black Carbon Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr10 210010 Hydrophobic Black Carbon Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr11 210011 Sulphate Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr16 210247 Nitrate fine mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr17 210248 Nitrate coarse mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr18 210249 Ammonium aerosol mass mixing ratio concentration in air an + fc ml + pl aermr19 210252 Biogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl aermr20 210253 Anthropogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl

  
  

• 
  

  expand3D parameter

  Expand
  title Gases
  short name parameter ID name type of variable type of data (an,fc) type of level (pl,sfc,ml) gtco3 210206 GEMS Total column ozone
  title Gases
  c2h6concentration in airplc3h8concentration in airplc5h8concentration in airplch4_cconcentration in airplcoconcentration in airpl short name parameter ID name type of variable type of data (an,fc) type of level (pl,sfc,ml) gtco3 210206 GEMS Total column ozone vertically-integrated an +fc sfc tc_c2h6 218045 Total column ethane vertically-integrated an +fc sfc tc_c3h8 218047 Total column propane vertically-integrated an +fc sfc tc_c5h8 218016 Total column isoprene vertically-integrated an +fc sfc tc_ch4 218004 Total column methane vertically-integrated an +fc sfc tc_hno3 218006 Total column nitric acid vertically-integrated an +fc sfc tc_no 218027 Total column nitrogen monoxide vertically-integrated an +fc sfc tc_oh 218030 Total column hydroxyl radical vertically-integrated an +fc sfc tc_panc2h6 218013218045 Total column peroxyacetyl nitrateethane vertically-integrated an +fc sfctcco tc_c3h8 210127218047 Total column Carbon monoxidepropane vertically-integrated an +fc sfctchcho tc_c5h8 210128218016 Total column Formaldehydeisoprene vertically-integrated an +fc sfctcno2 tc_ch4 210125218004 Total column Nitrogen dioxidemethane vertically-integrated an +fc sfctcso2 tc_hno3 210126218006 Total column Sulphur dioxidenitric acid vertically-integrated an +fc sfc tc_no 217045 Ethane 218027 Total column nitrogen monoxide vertically-integrated an +fc sfc tc_oh 217047 Propane 218030 Total column hydroxyl radical vertically-integrated an +fc sfc tc_pan 217016 Isoprene 218013 Total column peroxyacetyl nitrate vertically-integrated an +fc sfc tcco 217004 Methane (chemistry) 210127 Total column Carbon monoxide vertically-integrated an +fc sfc tchcho 210123 Carbon monoxide 210128 Total column Formaldehyde vertically-integrated an +fc sfc go3tcno2 210203 GEMS Ozone 210125 Total column Nitrogen dioxide vertically-integratedconcentration in air an +fc plsfc hchotcso2 210124 Formaldehyde 210126 Total column Sulphur dioxide vertically-integratedconcentration in air an +fc plsfchno3 tc_h2o2 217006 Nitric acid 218003 Total Column Hydrogen Peroxide vertically-integratedconcentration in air an + fcfc  plsfcno tc_glyoxal 217027 Nitrogen monoxide 218107 Total column of glyoxal vertically-integratedconcentration in air an + fcfc  plsfcno2 tc_clo 210121 Nitrogen dioxide 218174 Total column of chlorine monoxide vertically-integratedconcentration in air an + fcfc  plsfcoh tc_clono2 217030 Hydroxyl radical 218064 Total column of chlorine nitrate vertically-integratedconcentration in air an + fcfc  plsfcpan tc_hcl 217013 Peroxyacetyl nitrate 218200 Total column hydrogen chloride vertically-integratedconcentration in air an + fcfc  plsfcso2 tc_HCN 210122 Sulphur dioxide 218226 Total column hydrogen cyanide vertically-integratedconcentration in air an + fcfc  plsfc c2h6 217045 Ethane concentration in air an +fc ml + pl c3h8 217047 Propane concentration in air an +fc ml + pl c5h8 217016 Isoprene concentration in air an +fc ml + pl ch4_c 217004 Methane (chemistry) concentration in air an +fc ml + pl co 210123 Carbon monoxide concentration in air an +fc ml + pl go3 210203 GEMS Ozone concentration in air an +fc ml + pl hcho 210124 Formaldehyde concentration in air an +fc ml + pl hno3 217006 Nitric acid concentration in air an +fc ml + pl no 217027 Nitrogen monoxide concentration in air an +fc ml + pl no2 210121 Nitrogen dioxide concentration in air an +fc ml + pl oh 217030 Hydroxyl radical concentration in air an +fc ml + pl pan 217013 Peroxyacetyl nitrate concentration in air an +fc ml + pl so2 210122 Sulphur dioxide concentration in air an + fc ml + pl
  h2o2
  title Other (lsm, z, density, uvbed, uvbedcs)
  217003 Hydrogen Peroxide concentration in air an + fc ml + pl c2h6 217045 Ethane concentration in air an + fc ml + pl c3h8 217047 Propane concentration in air an + fc ml + pl c5h8 217016 Isoprene concentration in air an + fc ml + pl ch4_c 217004 Methane (chemistry) concentration in air an + fc ml + pl co 210123 Carbon monoxide concentration in air an + fc ml + pl go3 210203 GEMS Ozone concentration in air
  short name	parameter ID	name	type of variable	type of data (an,fc)	type of level (pl,sfc,ml)
  lsm	172	Land-sea mask	2D parameter	an	sfc
  z	129	Geopotential	2D parameter	an	sfc
  uvbed	214002	UV biologically effective dose	2D parameter	fc	sfc
  uvbedcs	214003	UV biologically effective dose clear-sky	2D parameter	fc	sfc
  den	3089	Density	3D parameter	an + fc	pl
  den	3089	Density

  an + fc

  ml + pl

  lnsp

  hcho

  152Logarithm of surface pressure

  210124

  Formaldehyde

  concentration in air

  2D parameter

  an + fc

  ml