Skip to main content

Table 1 Difference in burned area (hectares) and number (n) of classified unburned, low, moderate, and high burn severity pixels for the original versus the revised Monitoring Trends in Burn Severity (MTBS) program’s burned area and burn severity products. The percentage of overlapping area or classified burn severity pixels (Mean overlap %), difference in area or number of pixels (Median difference), and the Wilcoxon signed rank test P-value indicates whether there was a significant difference between the original versus revised MTBS area or burn severity products. Standard deviation (SD) was also calculated for mean overlap and median difference

From: Changes to the Monitoring Trends in Burn Severity program mapping production procedures and data products

 

Difference between original versus revised MTBS program output

Mean overlap % (SD)

Median difference (SD)

P-value

Burned area (hectares)

93 (19)

0 (2 554)

0.969

Unburned severity pixels (n)

69 (21)

−1608 (22 709)

<0.001

Low severity pixels (n)

54 (24)

5848 (10 369)

<0.001

Moderate severity pixels (n)

57 (23)

−2 (8 224)

0.045

High severity pixels (n)

82 (22)

−275 (11 898)

<0.001