The High-End cLimate Impacts and eXtremes (HELIX) project have calculated fire danger for the period 2061 to 2070 under two different climate change scenarios based on the Representative Concentration Scenario (RCP) scenarios used within the World Climate Research Programme's (WCRP) Climate Modelling Intercomparison Project phase 5 (CMIP5) using two Fire Indices, the McArthur Forest Fire Danger Index (FFDI), and the Angstroem Index. This work has been done to assess the change in fire danger at 1.5 degrees compared to 2 degrees Celsius. This dataset presents those from the McArthur Forest Fire Danger Index (FFDI), utilising Met Office Earth System Model HadGEM2-ES model output at a spatial resolution of 1.875° x 1.25°. The original model data were produced and owned by the Met Office. These results have been saved into gridded netCDF files showing global fire risk. The files represent two experimental runs, one is driven by concentrations following the Representative Concentration Scenario (RCP) 2.6, and the second represents a theoretical Solar Radiation Management scenario using a sulphur dioxide aerosol injection to reduce global mean temperature to 1.5 degrees Celsius. There are 4 ensemble members for each experiment: apdib, apdic, apdid and apdie are the ensemble members for the RCP2.6+SRM run; ajnjm, kaadc, kaaec and kaafc are the ensemble members for the standard RCP2.6 run. A period of 10 years 2061-2070 is chosen for this analysis, and this is compared to a present day period of 2006-2015 (files are labelled according to the data period represented).

The High-End cLimate Impacts and eXtremes (HELIX) project has calculated fire danger for the period 2061 to 2070 under two different climate change scenarios to assess the change in fire danger at 1.5 degrees compared to 2 degrees Celsius. The two fire indices (the McArthur Forest Fire Danger Index (FFDI); and the Angström Index) were based on output from the Earth System Model HadGEM2-ES (Collins et al, 2011; Jones et al, 2011) at a spatial resolution of 1.875° x 1.25°, driven by concentrations following two experiments. The first was the strong mitigation scenario RCP2.6 (Representation Concentration Pathway) for the 2 degree change used within the World Climate Research Programme's (WCRP) Climate Modelling Intercomparison Project phase 5 (CMIP5). The second was a new experiment set up using a new run of RCP2.6+SRM initialised at 2020 and run to the end of the 21st century with SO₂ injected continuously and uniformly into the stratosphere at a height of 16-25 km in 4 member ensemble simulations. In the model, the SO₂ oxidises to form a sulphate aerosol which reflects incoming solar radiation and creates a cooling effect on the climate, simulating the effect of SRM in order to keep climate warming to 1.5°C.