APPLICATION OF OPERATIONAL MAPPING IN THE FOREST OPERATIONS MANAGEMENT
The paper presents the results of application of operational mapping methods via a pilot project of monthly monitoring of changes in the forest cover using PlanetScope and Sentinel-2 images. The study area is the Dobryanka forestry with an area of 396, 777 ha, located in the Perm region. Forest losses (fires, cuttings and windthrows) are detected each month based on PlanetScope satellite images. The TVI difference vegetation index, based on red and near-infrared spectral bands of PlanetScope images, was used for detecting the changes. The detected forest losses were generalized, filtered and verified manually. The output vector features were used as input in the Python tool, which allowed for automatic generation of maps. With the creation of semi-automatic tools, it was possible to reduce the time to get resulting maps in each month to 1-2 days, which is one of the main features of operational mapping. Using data from modern satellite systems increases the temporal resolution of operational mapping of forestry activities up to 1 month (in some cases up to 1 week). The main limitation of the developed method is the impossibility of obtaining cloudless images with the required frequency, especially in the autumn period.