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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.

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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]

Where:

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. 

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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

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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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  title Aerosol
  short name parameter ID name type of variable type of data (an,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

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

• Expand
  title Aerosol
  Hydrophobic Organic Matter Aerosol Mixing RatioHydrophilic Black Carbon Aerosol Mixing Ratio short name parameter ID name type of variable type of data (an,fc) type of level (sfc,pl,ml) aod1240 210216 Total Aerosol Optical Depth at 1240nm vertically-integrated  an + fc  sfc aod469duaod550 210213210209 Total Dust Aerosol Optical Depth at 469nm550nm vertically-integrated  an + fc  sfc aod550omaod550 210207210210 Total Organic Matter Aerosol Optical Depth at 550nm vertically-integrated  an + fc  sfc aod670ssaod550 210214210208 Total Sea Salt Aerosol Optical Depth at 670nm550nm vertically-integrated  an + fc  sfc soaod550 215226 Secondary organic aerosol optical depth at 550 nm vertically-integrated  an + fc  sfc aod865suaod550 210215210212 Total Sulphate Aerosol Optical Depth at 865nm550nm vertically-integrated  an + fc  sfc bcaod550niaod550 210211 210250 Nitrate aerosol optical depth at 550 nmBlack Carbon Aerosol Optical Depth at 550nm vertically-integrated  an an + fc  sfc duaod550amaod550 210209 210251 Ammonium aerosol optical depth at 550 nmDust Aerosol Optical Depth at 550nm vertically-integrated  an an + fc  sfc pm1 210072 Particulate matter d < 1 um surface concentration fc sfc omaod550pm10 210210 Organic Matter Aerosol Optical Depth at 550nm vertically-integrated 210074 Particulate matter d < 10 um surface concentration fc an + fc  sfc ssaod550pm2p5 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 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 matter d < 10 um surface concentration fc sfc pm2p5 210073 Particulate matter d < 2.5 um surface concentration fc sfc 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 aermr01 210001 Sea Salt Aerosol (0.03 - 0.5 um) Mixing Ratio concentration in air an + fc ml + pl aermr02aermr09 210002 210009 Hydrophilic Black Carbon Aerosol Sea Salt Aerosol (0.5 - 5 um) Mixing Ratio concentration in air an + fc ml + pl aermr03aermr10 210003 210010 Hydrophobic Black Carbon Aerosol Sea Salt Aerosol (5 - 20 um) Mixing Ratio concentration in air an + fc ml + pl aermr04aermr11 210004210011 Dust Aerosol (0.03 - 0.55 um) Sulphate Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr05aermr16 210005 210247 Nitrate fine mode aerosol mass mixing ratioDust Aerosol (0.55 - 0.9 um) Mixing Ratio concentration in air an + fc ml + pl aermr06aermr17 210006 210248 Nitrate coarse mode aerosol mass mixing ratioDust Aerosol (0.9 - 20 um) Mixing Ratio concentration in air an + fc ml + pl aermr07aermr18 210007 210249 Ammonium aerosol mass mixing ratioHydrophilic Organic Matter Aerosol Mixing Ratio concentration in air an + fc ml + pl aermr01 aermr08 210008 210001 Sea Salt Aerosol (0.03 - 0.5 um) Hydrophobic Organic Matter Aerosol Mixing Ratio concentration in air an + fcfc  ml + pl aermr09aermr02 210009 210002 Sea Salt Aerosol (0.5 - 5 um) Hydrophilic Black Carbon Aerosol Mixing Ratio concentration in air an + fcfc  ml + pl aermr10aermr03 210010 210003 Sea Salt Aerosol (5 - 20 um) Hydrophobic Black Carbon Aerosol Mixing Ratio concentration in air an + fcfc  ml + pl aermr11aermr04 210011 210004 Dust Aerosol (0.03 - 0.55 um) Sulphate Aerosol Mixing Ratio concentration in air an + fcfc  ml + pl aermr16aermr05 210247 210005 Dust Aerosol (0.55 - 0.9 um) Mixing RatioNitrate fine mode aerosol mass mixing ratio concentration in air an + fcfc  ml + pl aermr17aermr06 210248 210006 Dust Aerosol (0.9 - 20 um) Mixing RatioNitrate coarse mode aerosol mass mixing ratio concentration in air an + fcfc  ml + pl aermr18aermr07 210249 210007 Hydrophilic Organic Matter Aerosol Mixing RatioAmmonium aerosol mass mixing ratio concentration in air an + fcfc  ml + pl aermr01aermr08 210001 210008 Hydrophobic Organic Matter Aerosol Sea Salt Aerosol (0.03 - 0.5 um) Mixing Ratio concentration in air an + fc  ml + pl aermr02aermr09 210002 210009 Hydrophilic Black Carbon Aerosol Sea Salt Aerosol (0.5 - 5 um) Mixing Ratio concentration in air an + fc  ml + pl aermr03aermr10 210003 210010 Hydrophobic Black Carbon Aerosol Sea Salt Aerosol (5 - 20 um) Mixing Ratio concentration in air an + fc  ml + pl aermr04aermr11 210004210011 Dust Aerosol (0.03 - 0.55 um) Sulphate Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr05aermr16 210005 210247 Nitrate fine mode aerosol mass mixing ratioDust Aerosol (0.55 - 0.9 um) Mixing Ratio concentration in air an + fc fc ml + pl aermr06aermr17 210006 210248 Nitrate coarse mode aerosol mass mixing ratioDust Aerosol (0.9 - 20 um) Mixing Ratio concentration in air an + fc fc ml + pl aermr07aermr18 210007 210249 Ammonium aerosol mass mixing ratioHydrophilic Organic Matter Aerosol Mixing Ratio concentration in air an + fc fc ml + plaermr08 aermr19 210008 210252 Biogenic secondary organic aerosol mass mixing ratio concentration in air an + fc fc ml + pl aermr09aermr20 210009 210253 Anthropogenic secondary organic aerosol mass mixing ratio concentration in air an + fc 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

  
  

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  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 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_pan 218013 Total column peroxyacetyl nitrate
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  title Gases
  noohpantcglyoxal 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_c2h6tcco 218045210127 Total column ethaneCarbon monoxide vertically-integrated an +fc sfc tc_c3h8tchcho 218047210128 Total column propaneFormaldehyde vertically-integrated an +fc sfc tc_c5h8tcno2 218016210125 Total column isopreneNitrogen dioxide vertically-integrated an +fc sfc tc_ch4tcso2 218004210126 Total column methaneSulphur dioxide vertically-integrated an +fc sfc tc_hno3h2o2 218006218003 Total column nitric acidColumn Hydrogen Peroxide vertically-integrated an + fcfc  sfc tc_ glyoxal 218027218107 Total column nitrogen monoxideof glyoxal vertically-integrated an + fcfc  sfc tc_ clo 218030218174 Total column hydroxyl radicalof chlorine monoxide vertically-integrated an + fcfc  sfc tc_ clono2 218013218064 Total column peroxyacetyl of chlorine nitrate vertically-integrated an + fcfc  sfctcco tc_hcl 210127218200 Total column Carbon monoxidehydrogen chloride vertically-integrated an + fcfc  sfctchcho tc_HCN 210128218226 Total column Formaldehydehydrogen cyanide vertically-integrated an + fcfc  sfc tcno2c2h6 210125 Total column Nitrogen dioxide 217045 Ethane concentration in airvertically-integrated an +fc sfcml + pl tcso2c3h8 210126 Total column Sulphur dioxide 217047 Propane concentration in airvertically-integrated an +fc sfc ml + pl c5h8 217016 Isoprene concentration in air tc_h2o2 218003 Total Column Hydrogen Peroxide vertically-integrated an + fc fc sfcml + pl ch4_ c 218107 Total column of glyoxal 217004 Methane (chemistry) concentration in airvertically-integrated an + fc fc sfcml + pl c2h6co 217045210123 EthaneCarbon monoxide concentration in air an +fc ml + pl c3h8go3 217047210203 PropaneGEMS Ozone concentration in air an +fc ml + pl c5h8hcho 217016210124 IsopreneFormaldehyde concentration in air an +fc ml + pl ch4_chno3 217004 217006 Nitric acidMethane (chemistry) concentration in air an +fc ml + pl cono 210123217027 Carbon Nitrogen monoxide concentration in air an +fc ml + pl go3no2 210203210121 GEMS OzoneNitrogen dioxide concentration in air an +fc ml + pl hchooh 210124217030 FormaldehydeHydroxyl radical concentration in air an +fc ml + pl hno3pan 217006217013 Nitric acidPeroxyacetyl nitrate concentration in air an +fc ml + pl noso2 217027210122 Nitrogen monoxideSulphur dioxide concentration in air an + fc ml + pl no2h2o2 210121217003 Nitrogen dioxideHydrogen Peroxide concentration in air an + fc ml + pl ohc2h6 217030217045 Hydroxyl radicalEthane concentration in air an + fc ml + pl panc3h8 217013217047 Peroxyacetyl nitratePropane concentration in air an + fc ml + pl so2c5h8 210122217016 Sulphur dioxideIsoprene concentration in air an + fc ml + pl h2o2ch4_c 217003 217004 Methane (chemistry)Hydrogen Peroxide concentration in air an + fc ml + pl c2h6co 217045210123 EthaneCarbon monoxide concentration in air an + fc ml + pl c3h8go3 217047210203 PropaneGEMS Ozone concentration in air an + fc ml + pl c5h8hcho 217016210124 IsopreneFormaldehyde concentration in air an + fc ml + pl ch4_cglyoxal 217004 217107 GlyoxalMethane (chemistry) concentration in air an + fc ml + pl cohno3 210123217006 Carbon monoxideNitric acid concentration in air an + fc ml + pl go3no 210203217027 GEMS OzoneNitrogen monoxide concentration in air an + fc ml + pl hchono2 210124210121 FormaldehydeNitrogen dioxide concentration in air an + fc ml + pl glyoxaloh 217107217030 GlyoxalHydroxyl radical concentration in air an + fc ml + pl hno3pan 217006217013 Nitric acidPeroxyacetyl nitrate concentration in air an + fc ml + pl noso2 217027210122 Nitrogen monoxideSulphur dioxide concentration in air an + fc ml + pl no2h2o2 210121217003 Nitrogen dioxideHydrogen Peroxide concentration in air an + fc ml + pl ohclo 217030217174 Hydroxyl radicalChlorine monoxide concentration in air an + fc ml + pl panclono2 217013217064 Peroxyacetyl Chlorine nitrate concentration in air an + fc ml + pl so2hcl 210122217200 Sulphur dioxideHydrogen chloride concentration in air an + fc ml + pl h2o2HCN 217003217226 Hydrogen Peroxidecyanide concentration in air an + fc ml + pl

  
  

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  title Other (lsm, z, density, uvbed, uvbedcs)
  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 3D parameter an + fc ml lnsp 152 Logarithm of surface pressure 2D parameter an + fc ml z 129 Geopotential 2D parameter fc ml q 133 Specific humidity 3D parameter fc ml t 130 Temperature 3D parameter fc ml u 131 U-component of wind 3D parameter fc ml v 132 V-component of wind 3D parameter fc ml w 135 Vertical velocity 3D parameter fc ml

  
  

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