Stelian DIMITROV , Sofia University "St. Kliment Ohridski" , Bulgaria
Martin ILIEV, Sofia University "St. Kliment Ohridski" , Bulgaria
Lidiya SEMERDZHIEVA, Sofia University "St. Kliment Ohridski" , Bulgaria
Bilyana BORISOVA, Sofia University "St. Kliment Ohridski" , Bulgaria
Kalina RADEVA, Sofia University "St. Kliment Ohridski" , Bulgaria
Contemporary changes in the land surface are permanently associated with intensive urbanisation and progressive loss of natural landscape elements. Highly modified urban environments bring a number of challenges for quality of life and human health. Climate change has forced the need to revise approaches to planning and management of urban areas with prominent attention to urban cooling measures. The objective of this study is to improve identification of Surface Urban Heat Island effect (SUHI) and its intensity through Integrated Application of UAS Photogrammetry, Thermal Radiometry and GIS Based Spatial Modeling. A key task is to further develop the methodology, including an appropriate toolkit for collecting field data and building understandable information for urban planning actors: Cataloging of the intensity of the SUHI. The pilot territory is the Burgas city in Bulgaria: a center of Functional Urban Area with complex urban morphology, set amidst a system of protected coastal wetlands and lakes. Methodological steps include: Precise orthophotomapping with high spatial resolution (by Unmanned Aerial Systems), Identification of Local Climate Zones (LCZ, Stewart&Oke 2012), Field verification and model calibration, Thermal photogrammetric mapping of selected LCZs, Generation of a spatial predictive model for SUHI intensity. The results are aimed at decision makers, actors and stakeholders in spatial planning. They are oriented towards new/adaptive urban planning solutions to mitigate the SUHI effect in the existing city structure. The processing data can be applied in the development of climate scenarios. This work has been carried out in the framework of the National Science Program "Environmental Protection and Reduction of Risks of Adverse Events and Natural Disasters", Ministry of Education and Science of Bulgaria (No ?01-363/17.12.2020).
Mots clés : Surface Urban Heat Island|Local Climate Zones|urban morphology|Thermal Radiometry|Bulgaria
A104346LS