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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.

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Data location

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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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  Expand
  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 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

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
  Sea Salt Aerosol (0.03 - 0.5 um) fcaermr02Sea Salt Aerosol (0.5 - 5 um) fcaermr03Sea Salt Aerosol (5 - 20 um) fcaermr04210004Dust Aerosol (0.03 - 0.55 um) fcaermr05Dust Aerosol (0.55 - 0.9 um) Mixing Ratioaermr06Dust Aerosol (0.9 - 20 um) Mixing Ratioaermr07Hydrophilic Organic Matter Aerosol Mixing Ratioaermr08Hydrophobic Organic Matter Aerosol Mixing Ratioaermr09Hydrophilic Black Carbon Aerosol Mixing Ratioconcentration in air 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 sfc aermr01 210001 Mixing Ratio concentration in air an + fc  ml + pl aermr09 210002 210009 Hydrophilic Black Carbon Aerosol Mixing Ratio concentration in air an + fc  ml + pl aermr10 210003 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 210005 210247 Nitrate fine mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr17 210006 210248 Nitrate coarse mode aerosol mass mixing ratio concentration in air an + fc ml + pl aermr18 210007 210249 Ammonium aerosol mass mixing ratio concentration in air an + fc ml + pl aermr19 210008 210252 Biogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl aermr20 210009 210253 Anthropogenic secondary organic aerosol mass mixing ratio concentration in air an + fc ml + pl aermr10 210010 Hydrophobic Black Carbon Aerosol Mixing Ratio concentration in air an + fc pl aermr11 210011 Sulphate Aerosol Mixing Ratio

  
  

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  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 vertically-integrated an +fc pl sfc aermr16 tc_c2h6	210247	Nitrate fine mode aerosol mass mixing ratio

  218045

  Total column ethane

  vertically-integrated

  concentration in air

  an +fc

  sfc

  pl

  tc_c3h8

  aermr17

  218047

  210248Nitrate coarse mode aerosol mass mixing ratio

  Total column propane

  vertically-integrated

  concentration in air

  an +fc

  pl

  sfc

  aermr18

  tc_c5h8

  210249Ammonium aerosol mass mixing ratio

  218016

  Total column isoprene

  vertically-integrated

  concentration in air

  an +fc

  pl

  sfc

  aermr01

  tc_ch4

  210001Sea Salt Aerosol (0.03 - 0.5 um) Mixing Ratioconcentration in airan + fc mlaermr02210002Sea Salt Aerosol (0.5 - 5 um) Mixing Ratioconcentration in airan + fc mlaermr03210003Sea Salt Aerosol (5 - 20 um) Mixing Ratioconcentration in airan + fc mlaermr04210004Dust Aerosol (0.03 - 0.55 um) Mixing Ratioconcentration in airan + fc mlaermr05210005Dust Aerosol (0.55 - 0.9 um) Mixing Ratioconcentration in airan + fc mlaermr06210006Dust Aerosol (0.9 - 20 um) Mixing Ratioconcentration in airan + fc mlaermr07210007Hydrophilic Organic Matter Aerosol Mixing Ratioconcentration in airan + fc mlaermr08210008Hydrophobic Organic Matter Aerosol Mixing Ratioconcentration in airan + fc mlaermr09210009Hydrophilic Black Carbon Aerosol Mixing Ratioconcentration in airan + fc mlaermr10210010Hydrophobic Black Carbon Aerosol Mixing Ratioconcentration in airan + fc mlaermr11210011Sulphate Aerosol Mixing Ratioconcentration in airan + fc mlaermr16210247Nitrate fine mode aerosol mass mixing ratioconcentration in airan + fcmlaermr17210248Nitrate coarse mode aerosol mass mixing ratioconcentration in airan + fcmlaermr18210249Ammonium aerosol mass mixing ratioconcentration in airan + fcml