Table 5. Improved criteria of regional forest fire danger class.

Forest Fire Danger Class	Index Range	Area (%) (Number of pixels(%))
Very high	≥ 86 (D4)	≥ 15%
	≥ 66 (D3+D4)	≥ 60%
High	≥ 66 (D3+D4)	≥ 60%
Moderate	≥ 51 (D2+D3+D4)	≥ 40%
Low	Else