The SLSTR Fire Radiative Power (FRP) is provided by the SL_2_FRP package in one measurement data file FRP_in.nc file.
The product is generated "globally", i.e. over land and marine areas.
The FRP_in.nc is composed by FRP_flags indexed on the 1km image grid and by a vector providing for each confirmed fire its characteristics.
Note that depending on the approach used to detect this fire (using thermal and/or MWIR radiometric measurements), a fire can be associated with FRP_MIR and/or FRP_SWIR.
| Descriptive Name | Fire Radiative Power |
| Variable Name | FRP |
| Product Level | 2 |
| Description | Fire Radiative Power values for each hotspot detected on the 1 km measurement grid. |
| Product Parameters | |
| Coverage | Global (over land and water) |
| Timeliness and Packaging | NRT: 3 min frame NTC: full orbit (pole to pole) |
| Units | MegaWatts |
| Format | 64 bit float |
| Appended Data | For each gridded pixel:
|
| Additional Information | |
| Input Bands | Channels S6, S7 and S8 , i.e. 2.25, 3.7 and 10.85 μm |
| Ancillary and Auxiliary Data |
|
| Bit number |
Value | Text Code | Description |
| 0 | 1 | exception | L1b pixel radiance exception |
| 1 | 1 | l1b_water | L1b water surface classification |
| 2 | 1 | frp_water | Water detected by FRP tests |
| 3 | 1 | l1b_cloud | Cloud detected by L1b tests |
| 4 | 1 | bayesian_cloud | Cloud detected by Bayesian tests |
| 5 | 1 | frp_cloud | Cloud detected by FRP tests |
| 6 | 0 | night | Pixel is in day or night |
| 1 | day | ||
| 7 | 1 | sun_glint | Sun glint |
| 8 | 1 | spectral_filter | Potential fire identified by spectral test |
| 9 | 1 | spatial_filter | Potential fire identified by spatial test |
| 10 | 1 | absolute_threshold | Fire identified by absolute threshold test |
| 11 | 1 | background_characterisation | Potential fire successful background characterisation |
| 12 | 1 | contextual_threshold | Potential fire confirmed by contextual threshold test |
| 13 | 1 | desert_boundary | Potential fire rejected by desert boundary test |
| 14 | 0 | No Fire | Normal fire has BT <500K |
| 1 | Saturated fire | Saturation fire has BT >500K | |
| 15 | 0 | Low confidence fire | Low confidence (0-50%) |
| 1 | High confidence fire | High confidence (50-100%) | |