Table 2 Dates of UAV flights and number of aerial images used to provide orthophotos
| Â | Date | Number of aerial images |
|---|---|---|
CF site | ||
 First flight | February 14, 2019 | 159 |
 Second flight | September 26, 2019 | 284 |
BF site | ||
 First flight | November 16, 2018 | 315 |
 Second flight | December 25, 2019 | 141 |