Section 3 Data

Five ponderosa pine (Pinus ponderosa) dominated sites with 100% census field stem-mapped inventories were used to evaluate how SfM algorithm parameters impact individual tree detection and resulting stand basal area estimates compared to field-based measurements. UAS flights from the following forests were included: the Manitou Experimental Forest on the Pike-San Isabel National Forest (Colorado; “N1”), the Black Hills Experimental Forest on the Black Hills National Forest (South Dakota; “SQ09_02”, “WA85_02”), and the Lookout Canyon area in the Kaibab National Forest (Arizona; “Kaibab_High”, “Kaibab_Low”).