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Anchor table2 table2
Table 2: CAMS GFAS analysis surface parameters (last reviewed on )
| table2 | |
| table2 |
| Name | Units | Variable name in CDS API | Short name | Parameter ID | Notes |
|---|---|---|---|---|---|
| Wildfire flux of acetaldehyde (C2H4O) | kg m-2 s-1 | wildfire_flux_of_acetaldehyde | c2h4ofire | 114.210 | |
| Wildfire flux of acetone (C3H6O) | kg m-2 s-1 | wildfire_flux_of_acetone | c3h6ofire | 115.210 | |
| Wildfire flux of ammonia (NH3) | kg m-2 s-1 | wildfire_flux_of_ammonia | nh3fire | 116.210 | |
| Wildfire flux of benzene (C6H6) | kg m-2 s-1 | wildfire_flux_of_benzene | c6h6fire | 232.210 | |
| Wildfire flux of black carbon | kg m-2 s-1 | wildfire_flux_of_black_carbon | bcfire | 91.210 | |
| Wildfire flux of butanes (C4H10) | kg m-2 s-1 | wildfire_flux_of_butanes | c4h10fire | 238.210 | |
| Wildfire flux of butenes (C4H8) | kg m-2 s-1 | wildfire_flux_of_butenes | c4h8fire | 234.210 | |
| Wildfire flux of carbon dioxide (CO2) | kg m-2 s-1 | wildfire_flux_of_carbon_dioxide | co2fire | 80.210 | |
| Wildfire flux of carbon monoxide (CO) | kg m-2 s-1 | wildfire_flux_of_carbon_monoxide | cofire | 81.210 | |
| Wildfire flux of dimethyl sulfide (DMS) (C2H6S) | kg m-2 s-1 | wildfire_flux_of_dimethyl_sulfide | c2h6sfire | 117.210 | |
| Wildfire flux of ethane (C2H6) | kg m-2 s-1 | wildfire_flux_of_ethane | c2h6fire | 118.210 | |
| Wildfire flux of ethanol (C2H5OH) | kg m-2 s-1 | wildfire_flux_of_ethanol | c2h5ohfire | 104.210 | |
| Wildfire flux of ethene (C2H4) | kg m-2 s-1 | wildfire_flux_of_ethene | c2h4fire | 106.210 | |
| Wildfire flux of formaldehyde (CH2O) | kg m-2 s-1 | wildfire_flux_of_formaldehyde | ch2ofire | 113.210 | |
| Wildfire flux of heptane (C7H16) | kg m-2 s-1 | wildfire_flux_of_heptane | c7h16fire | 241.210 | |
| Wildfire flux of hexanes (C6H14) | kg m-2 s-1 | wildfire_flux_of_hexanes | c6h14fire | 240.210 | |
| Wildfire flux of hexene (C6H12) | kg m-2 s-1 | wildfire_flux_of_hexene | c6h12fire | 236.210 | |
| Wildfire flux of higher alkanes (CnH2n+2, c>=4) | kg m-2 s-1 | wildfire_flux_of_higher_alkanes | hialkanesfire | 112.210 | |
| Wildfire flux of higher alkenes (CnH2n, c>=4) | kg m-2 s-1 | wildfire_flux_of_higher_alkenes | hialkenesfire | 111.210 | |
| Wildfire flux of hydrogen (H) | kg m-2 s-1 | wildfire_flux_of_hydrogen | h2fire | 84.210 | |
| Wildfire flux of isoprene (C5H8) | kg m-2 s-1 | wildfire_flux_of_isoprene | c5h8fire | 108.210 | |
| Wildfire flux of methane (CH4) | kg m-2 s-1 | wildfire_flux_of_methane | ch4fire | 82.210 | |
| Wildfire flux of methanol (CH3OH) | kg m-2 s-1 | wildfire_flux_of_methanol | ch3ohfire | 103.210 | |
| Wildfire flux of nitrogen oxides (NOx) | kg m-2 s-1 | wildfire_flux_of_nitrogen_oxides | noxfire | 85.210 | |
| Wildfire flux of nitrous oxide (N20) | kg m-2 s-1 | wildfire_flux_of_nitrous_oxide | n2ofire | 86.210 | |
| Wildfire flux of non-methane hydrocarbons | kg m-2 s-1 | wildfire_flux_of_non_methane_hydrocarbons | nmhcfire | 83.210 | |
| Wildfire flux of octene (C8H16) | kg m-2 s-1 | wildfire_flux_of_octene | c8h16fire | 237.210 | |
| Wildfire flux of organic carbon | kg m-2 s-1 | wildfire_flux_of_organic_carbon | ocfire | 90.210 | |
| Wildfire flux of particulate matter d < 2.5 µm (PM2.5) | kg m-2 s-1 | wildfire_flux_of_particulate_matter_d_2_5_µm | pm2p5fire | 87.210 | |
| Wildfire flux of pentanes (C5H12) | kg m-2 s-1 | wildfire_flux_of_pentanes | c5h12fire | 239.210 | |
| Wildfire flux of pentenes (C5H10) | kg m-2 s-1 | wildfire_flux_of_pentenes | c5h10fire | 235.210 | |
| Wildfire flux of propane (C3H8) | kg m-2 s-1 | wildfire_flux_of_propane | c3h8fire | 105.210 | |
| Wildfire flux of propene (C3H6) | kg m-2 s-1 | wildfire_flux_of_propene | c3h6fire | 107.210 | |
| Wildfire flux of sulphur dioxide (SO2) | kg m-2 s-1 | wildfire_flux_of_sulphur_dioxide | so2fire | 102.210 | |
| Wildfire flux of terpenes ((C5H8)n) | kg m-2 s-1 | wildfire_flux_of_terpenes | terpenesfire | 109.210 | |
| Wildfire flux of toluene (C7H8) | kg m-2 s-1 | wildfire_flux_of_toluene | c7h8fire | 231.210 | |
| Wildfire flux of toluene_lump (C7H8+ C6H6 + C8H10) | kg m-2 s-1 | wildfire_flux_of_toluene_lump | toluenefire | 110.210 | |
| Wildfire flux of total carbon in aerosols | kg m-2 s-1 | wildfire_flux_of_total_carbon_in_aerosols | tcfire | 89.210 | |
| Wildfire flux of total particulate matter | kg m-2 s-1 | wildfire_flux_of_total_particulate_matter | tpmfire | 88.210 | |
| Wildfire flux of xylene (C8H10) | kg m-2 s-1 | wildfire_flux_of_xylene | c8h10fire | 233.210 | |
| Wildfire fraction of area observed | dimensionless | wildfire_fraction_of_area_observed | The offire parameter is unfortunately not suitable for calculating burnt area. It specifies which fraction of the grid cell had a detection opportunity (mostly: was cloud-free). Formally, it is the ratio of the sum of the satellite pixel footprint areas with detection opportunity over the area of the corresponding grid cell. In completely cloud-free scenes, this can become larger than unity due to overlap of the footprints. | ||
| Wildfire overall flux of burnt carbon | kg m-2 s-1 | wildfire_overall_flux_of_burnt_carbon | cfire | 92.210 | |
| Wildfire radiative power | W m-2 | wildfire_radiative_power |
Satellites and instruments
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The latest daily Fire Radiative Power (FRP) analysis from GFAS is available here. The map represents the thermal radiation measured from space-borne sensors and detected as coming from actively burning vegetation and other open fires. It is expressed as the daily average of the fire radiative power (FRP) observations made in 125 km grid cells and expressed in the units of [mW/m2]. The rate of release of thermal radiation by a fire is believed to be related to the rate at which fuel is being consumed and smoke produced. Therefore, these daily averaged FRP areal intensity data are used in the global estimation of open vegetation fire trace gas and particulate emissions.
Known issues
- 12 August - an issue with the Global Fire Assimilation System (GFAS) outputs at high latitudes over the eastern Arctic. This is due to some contaminated Fire Radiative Power observations on 9 August 2024 and it is causing an area of unrealistic estimated in fire emissions in region. This is also affecting the CAMS forecasts (e.g. development of unrealistic/false plumes of AOD, CO, PM2.5 and GHGs) across the eastern Arctic region and some care is currently required in their use.
- 31 March - 17 April 2022: No Aqua MODIS FRP data due to known issues with the satellite.
- 22 February 2021: Aqua and Terra MODIS FRP data changed from collection 6 to collection 6.1
- 18 November 2020: Aqua MODIS FRP data reintroduced to GFAS processing
- 19 August 2020: No Aqua MODIS FRP data available since 17 August (limited coverage on 16th) due to known issue with the satellite as documented at https://ladsweb.modaps.eosdis.nasa.gov/alerts-and-issues/?id=44995.
- 3 July 2018: GFAS production moved to ECMWF operations; standard output updated to include altitude of plume bottom and injection height from IS4FIRES.
- 23-27 June 2018: Limited MODIS FRP observations being used in daily NRT GFAS processing.
- 19 December 2016: Aqua and Terra MODIS FRP data changed from collection 5 to collection 6.
- 8-9 August 2016: no Aqua MODIS data available leading to reduced GFAS emissions over Africa and South America - all other regions seem to be unaffected.
- 22 April 2016: Terra MODIS data reintroduced to GFAS processing.
- 1 March 2016: Terra MODIS removed from GFAS processing.
- 24 February - 4 March 2016: anomalous FRP values associated with degraded Terra MODIS data being used in GFAS.
- Updated 20 September 2016: GFAS FRP values for these dates have been recalculated using Aqua MODIS data only and have replaced the anomalous values in the GFAS catalogue. For users that have downloaded the GFAS data for these dates, we recommend to download them again.
How to cite the CAMS GFAS data
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