The analysis of the bioclimatic conditions is becoming increasingly relevant in climate interpretations for human needs, particularly in spatial planning, tourism, public health, sports events, bio-prognosis, etc. In this context, our study presents general temporal bioclimatic conditions in Belgrade, defined based on the PET, mPET and UTCI heat budget indices. Monthly, seasonal and annual indices were analyzed for urban and suburban weather stations based on 43 annual sets of meteorological data obtained by hourly observations at 7 h and 14 h CET. This study aims to present the distribution of PET, mPET and UTCI indices to show the pattern of each index in a mild climate location and to examine annual and seasonal differences of each index in the Belgrade urban center and suburban part of the city. The study results indicate higher biothermal stress in the urban area compared to the suburban zone and that the indices are congruent during the summer. At the same time, during the winter, they are more difficult to compare due to their peculiarities becoming more noticeable. The results obtained of all mean monthly and mean annual values of all three indices clearly indicate the difference that follows the definition of the urban heat island (UHI), particularly those from morning observation and winter season. The UTCI index shows the most significant monthly, seasonal and annual difference between urban and suburban areas for both observations. The annual difference of ΔUTCI7h amounts to 1.5 °C is the same as the annual difference of minimum temperatures (Δtmin). In contrast, the annual differences of ΔPET7h ΔmPET7h are °smaller (0.8 °C and 0.7 °C) and closer to the annual differences of maximum temperatures Δtmax amounted of 0.6 °C.
With this work we want to affirm geoecological evaluation, planning and landscape management. Geoecological evaluation of the Belgrade region, for the purpose of rest and recreation, was performed with quantitative method of diversity (V-Wert Methode) of Hans Kiemstedt. The method is suitable for the determination of potential locations suitable for rest and recreation, with various forms of relief (edge of forest and water, then climate and relief). Due to the surface of the evaluated area and the amount of data that had to be processed, the benefits of geographic information systems are expressed. According to this geoecological analysis favorable and very favorable areas for recreation are tied exclusively to the river flows of Sava and Danube. Each of the four raster units, which are marked as very favorable for recreation, include items of river islands (Baric river island, River island Ciganlija, River island Grocanska, Batkov river island and River island Brestovacka), which have high values of the length of the edges of the water.
The study deals with an assessment and interpretation of the bioclimatic conditions in Vranje (southern Serbia). The study aims at temporal distributions of bioclimatic conditions focussing on extreme thermal stress based on the Universal Thermal Climate Index (UTCI). The meteorological data required for the calculation of UTCI concern hourly (7 and 14 CET) weather data collected for the period 2000-2017. The frequency of very strong heat stress (VSHS), very strong cold stress (VSCS) and extreme cold stress (ECS) for both morning and midday hours. Furthermore, the daily difference of the UTCI hourly values (diurnal UTCI change) are specified, giving the daily variance of heat and cold stress. The results revealed the frequency of days in which thermal stress prevails for the studied period. The obtained results show an increase in extreme heat biothermal conditions, while extreme cold biothermal conditions are in decline, especially in the last 10 years. However, the frequency (the number of days) of very strong heat stress (VSHS) increased since 2007. A spectacular increase in heat stress was observed in the month of September, particularly in 2015.
Original scientific article UDC 528.8:[502.211:582](497.11 Vrčin) Abstract: The modern way of life has affected the extremely high level of environmental degradation. Modern technologies, on the one hand, degrade our environment, but on the other they can also be used to preserve and improve its quality. An efficient monitoring system is able to monitor the status and changes in the vegetation cover of a particular area. In this paper will be shown the determination of the vegetation inventory of the settlement Vrčin through the NDVI (Normalized Difference Vegetation Index) and comparison of the data thus obtained with the various available classifications of satellite images, in order to determine the best monitoring system in the environment through remote detection.
The intensive construction of road infrastructure due to urbanization and industrialization around the world carries with it negative environmental impacts, primarily due to increased emissions of gases, but also due to the separation of natural habitats and ecosystems. In order to overcome this problem, without affecting the mobility of the population, it is necessary to allow wild animals to cross over or below the roads, i.e. to create wildlife crossings, which requires knowledge of the locations where the corridors of animal movements intersect with existing or planned roads. This paper analysis the establishment of a camera system and the application of a deep learning methodology for the automatic identification of animals by species and number, in order to determine locations for the construction of crossings for large wildlife. Also, the paper presents the possibility of using geographic information systems to analyze information obtained by monitoring built wildlife crossings.
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