This article aims to present the developed, adapted and applied methodology for the study, mapping, and evaluation of the effect and intensity of the urban heat island(UHI) within the urban space of the city of Sofia, while assessing its potential impact on the structure of the city and the prospects for its development and structure. For this purpose, a combination of GIS-based spatial analysis techniques is used, based both on the application of traditional satellite data sources and on the use of state-of-the-art unmanned aerial vehicle systems (UAVs), delivering highresolution information. The results obtained from the study are adapted towards their use for the purpose of supporting urban planning processes in the city and could greatly assist in the establishment of more adequate models of spatial planning in the urban area of Sofia, in the context of global climate change and the expected intensification of the UHI effects in the near future.
Over the last decades, massive forest decline has occurred in many countries because of prolonged periods of drought and anomalous climatic phenomena. Studies show that in most cases this is the result of a combination of unfavourable climatic conditions and impact of harmful biotic factors, mostly insect pests and fungal pathogens. The massiveness of these unfavourable phenomena, as well as the specificities of their occurrence and spatial distribution, including mountainous and difficult to access areas, require the application of flexible, high-tech methods of collecting and processing data and information, and in recent years, modern unmanned aerial platforms and systems. This article presents the used approach, the methodology for complex assessment and the results obtained in integrated application of the potential of modern unmanned aerial platforms and traditional entomological and phytopathological methods for field investigation of sanitary status of two protected areas in West Balkan Range in Bulgaria – Gornata koria Reserve and Chuprene Biosphere Reserve.
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