During the project an aerial survey from a UAV (Unmanned Aerial Vehicle) mini-drone was carried out to identify the areas most suitable for the restoration of the landa carsica. The area covered by the research involves the part of the Karst above the River Isonzo falling within the municipality of Ronchi dei Legionari (Gorizia, NE Italy). The high spatial resolution of images (3 cm) that reveal a level of detail far superior to satellite images and aerial photos, even allowed the identification in the area of individual plant species. Using the digital model of the objects (DSM: Digital Surface Model), produced by photogrammetric reconstruction of 3D images taken by the same UAV, the height of the vegetation was obtained. With this parameter a classification with high accuracy was obtained of the study area that allowed us to distinguish the meadow areas, the overgrown ones and those covered by karst scrub. On the basis of the density of the scrubbing-over, (defined as the ratio of the scrubbed-over areas per unit area - OGU: Operational Geographic Units -, suitably identified by a grid), the areas most suitable to the restoration of the landa carsica were identified.

Processing of images obtained using UAV/RPAS to assess the degree of scrubbing over dry grasslands in the Gorizian Karst

ALTOBELLI, ALFREDO;GANIS, PAOLA;ZANATTA, KATIA;
2014

Abstract

During the project an aerial survey from a UAV (Unmanned Aerial Vehicle) mini-drone was carried out to identify the areas most suitable for the restoration of the landa carsica. The area covered by the research involves the part of the Karst above the River Isonzo falling within the municipality of Ronchi dei Legionari (Gorizia, NE Italy). The high spatial resolution of images (3 cm) that reveal a level of detail far superior to satellite images and aerial photos, even allowed the identification in the area of individual plant species. Using the digital model of the objects (DSM: Digital Surface Model), produced by photogrammetric reconstruction of 3D images taken by the same UAV, the height of the vegetation was obtained. With this parameter a classification with high accuracy was obtained of the study area that allowed us to distinguish the meadow areas, the overgrown ones and those covered by karst scrub. On the basis of the density of the scrubbing-over, (defined as the ratio of the scrubbed-over areas per unit area - OGU: Operational Geographic Units -, suitably identified by a grid), the areas most suitable to the restoration of the landa carsica were identified.
978-88-6938-006-8
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2835594
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact