The alpine treeline ecotone is expected to move upwards in elevation with global warming. Thus, mapping ecotones crucial monitoring potential changes. Previous remote sensing studies have focused on the usage of satellites and aircrafts for ecotone. However, can be highly heterogenous, thus use imagery higher spatial resolution should investigated. We evaluate using unmanned aerial vehicles (UA...

Changes in vegetation height the boreal-alpine ecotone are expected over coming decades due to climate change. Previous studies have shown that subtle changes (<0.2 m) can be estimated with great precision short time periods (~5 yrs) for small spatial units (~1 ha) utilizing bi-temporal airborne laser scanning (ALS) data, which is promising operation monitoring. However, ALS data may not alw...