Table 1.
Data, metrics and definitions
| Category | Metric | Definition | Abbr. | Units |
|---|---|---|---|---|
| Forest fuel structure | Biomass | Total above-ground biomass from GEDI waveforms (L4A)51,74 | AGBD | m/m2 |
| Canopy height | Relative height of the 98th percentile of returned energy from GEDI waveforms (L2A)75 | RH98 | m | |
| Layering | Number of modes in the GEDI waveform (L2B)40 | nmode | n | |
| Ladder fuels | Mean plant area index (mPAI) for 5 m vertical increments below 10 m for canopies >10 m (L2B)40 | mPAI10m | m2 / m2 | |
| Fire weather | Evapo-transpiration | Weighted mean values from 8-day, interpolated from 1 km gap-filled MODIS (MOD16GF) global evapotranspiration | ET | mm / 8 days |
| Vapor pressure deficit | Weighted mean daily values in the month preceding ignition interpolated from 4 km gridMET83 | VPD | kPa | |
| Wind speed | Weighted mean daily values during wildfire interpolated from 4 km gridMET83 | -- | m/s | |
| Topography | Slope | Weighted mean slope derived from the USGS National Elevation Dataset82 | -- | degrees |
| Climate | Temperature seasonality | Standard deviation of monthly temperature per annum at 1 km resolution85 | Tseas | sd °C |
| Productivity | Cumulative Gross Primary Productivity from 1 km MODIS (MOD13A2) summed over 2003-201487 | GPPcum | kg C / m2 | |
| Aridity | Global aridity index calculated as normalized annual precipitation / ET at 1 km resolution86 | AI | unitless |