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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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z_cams_c_ ecmf_20160704120000_prod_fc_ml_012_go3.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 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 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 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 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

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
  sfc fc fc fc fc fc fc fc fc fc fc RatioNitrate coarse mode aerosol mass mixing ratio fcaermr18210249Ammonium 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 aermr04Dust Aerosol (0.03 - 0.55 um) Mixing Ratio fc aermr05 short name parameter ID name type of variable type of data (an,fc) type of level (pl,sfc,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 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 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 concentration in air an + fc pl aermr16 210247 Nitrate fine mode aerosol mass mixing ratio concentration in air an + fc pl aermr17 210248 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 210001 210248 Nitrate coarse mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr18 210002 210249 Ammonium aerosol mass mixing ratio concentration in air an + fc ml + pl aermr19 210003 210252 Biogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl aermr20 210004 210253 Anthropogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl

  
  

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  210005	Dust Aerosol (0.55 - 0.9 um) Mixing Ratio	concentration in air	an + fc	ml
  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 vertically-integrated an +fc sfc tcco 210127 Total column Carbon monoxide vertically-integrated an +fc sfc tchcho 210128 Total column Formaldehyde
  aermr06	210006	Dust Aerosol (0.9 - 20 um) Mixing Ratio	concentration in air	an + fc	ml
  aermr07	210007	Hydrophilic Organic Matter Aerosol Mixing Ratio	concentration in air	an + fc	ml
  aermr08	210008	Hydrophobic Organic Matter Aerosol Mixing Ratio	concentration in air	an + fc	ml
  aermr09	210009	Hydrophilic Black Carbon Aerosol Mixing Ratio	concentration in air	an + fc	ml
  aermr10	210010	Hydrophobic Black Carbon Aerosol Mixing Ratio	concentration in air	an + fc	ml
  aermr11	210011	Sulphate Aerosol Mixing Ratio	concentration in air	an + fc	ml
  aermr16	210247	Nitrate fine mode aerosol mass mixing ratio	concentration in air	an + fc	ml
  aermr17	210248	Nitrate coarse mode aerosol mass mixing ratio	concentration in air	an + fc	ml
  aermr18	210249	Ammonium aerosol mass mixing ratio	concentration in air	an + fc	ml
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  title Gases
  tc_c3h8218047 propanec5h8218016 column isoprenefcch4218004 methanefchno3218006 nitric acidfcno218027 nitrogen monoxidefcohpanvertically-integrated fc sfcc2h6217045Ethanec3h8217047Propanec5h8217016Isoprenech4_cMethane (chemistry)co210123Carbon monoxideh2o2217003Hydrogen Peroxidepl c2h6217045Ethanec3h8217047Propanec5h8217016Isoprenech4_cMethane (chemistry)co210123Carbon go3210203GEMS Ozoneno217027Nitrogen monoxideh2o2217003 Peroxideml  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_c2h6tcno2 218045210125 Total column ethaneNitrogen dioxide vertically-integrated an +fc sfc tcso2 210126 Total column Sulphur dioxide vertically-integrated an +fc sfc tc_ h2o2 218003 Total Column Hydrogen Peroxide vertically-integrated an + fc  sfc tc_ glyoxal 218107 Total column of glyoxal vertically-integrated an + fc  sfc tc_ clo 218174 Total column of chlorine monoxide vertically-integrated an + fc  sfc tc_ clono2 218064 Total column of chlorine nitrate vertically-integrated an + fc  sfc tc_ hcl 218030218200 Total column hydroxyl radicalhydrogen chloride vertically-integrated an + fcfc  sfc tc_ HCN 218013218226 Total column peroxyacetyl nitratehydrogen cyanide vertically-integrated an + fcfc  sfc tccoc2h6 210127 Total column Carbon monoxide 217045 Ethane concentration in airvertically-integrated an +fc sfcml + pl tchchoc3h8 210128217047 Total column Formaldehyde Propane concentration in airvertically-integrated an +fc sfcml + pl tcno2c5h8 210125 Total column Nitrogen dioxide 217016 Isoprene concentration in airvertically-integrated an +fc sfc tcso2 210126 Total column Sulphur dioxide ml + pl ch4_c 217004 Methane (chemistry) concentration in airvertically-integrated an +fc sfc tc_h2o2 218003 Total Column Hydrogen Peroxide 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 217004 217027 Nitrogen monoxide concentration in air an +fc ml + pl no2 210121 Nitrogen dioxide concentration in air an +fc ml + pl go3oh 210203217030 GEMS OzoneHydroxyl radical concentration in air an +fc ml + pl hchopan 210124217013 FormaldehydePeroxyacetyl nitrate concentration in air an +fc ml + pl hno3so2 217006210122 Nitric acidSulphur dioxide concentration in air an + fc ml + pl noh2o2 217027217003 Nitrogen monoxideHydrogen Peroxide concentration in air an + fc ml + pl no2c2h6 210121217045 Nitrogen dioxideEthane concentration in air an + fc ml + pl ohc3h8 217030217047 Hydroxyl radicalPropane concentration in air an + fc ml + pl panc5h8 217013217016 Peroxyacetyl nitrateIsoprene concentration in air an + fc ml + pl so2ch4_c 210122 217004 Methane (chemistry)Sulphur dioxide 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 glyoxal 217107 Glyoxal concentration in air an + fc ml + pl hno3 217004 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 hchooh 210124217030 FormaldehydeHydroxyl radical concentration in air an + fc ml + pl hno3pan 217006217013 Nitric acidPeroxyacetyl nitrate concentration in air an + fc ml + pl so2 210122 Sulphur 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 HCN 217226 Hydrogen cyanide 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

  
  

Data volumes per model cycle

The data volumes are based on the current CAMS experiment (link).are based on the current CAMS experiment (link) and for guidance only.

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