Fig. 5

Relationship between predicted flame length and average (a) and maximum (b) flame length reported by stakeholders using managed fire reporting cards for experimental managed burns on Calluna-dominated moorland in Scotland between spring 2006 and autumn 2009. The 1:1 relationship is shown as a diagonal black line. Point color refers to reported difficulty of fire control, with darker colors indicating more challenging burns. Predictions of flame length were based on Equations 1 and 4 (Table 1), and observations of fuel height and wind speed were made by stakeholders during fires that they burned