Global ERA5 fuel moisture trends 1979 - 2019

Timeseries and Trend statistics (Sen-Theil slope estimates, Mann-Kendall S statistics, and associated Z statistics) for fine fuel moisture content (FMC) as calculated using the Canadian Forest Fire Weather Index (FWI) System and ERA5 data for the period 1979 to 2019. The underlying metrics use the FWI System's Fine Fuel Moisture Code (FFMC), transformed to a percentage of the fire season falling under 10% fuel moisture content, which has been identified as a critical threshold controlling fire potential. Also includes associated realm, biome, and ecoregion data using definitions from Olson et al. (2001).