Филозофски факултет [Научни радови] / Faculty of Philosophy [Scientific papers]
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Прегледај Филозофски факултет [Научни радови] / Faculty of Philosophy [Scientific papers] по Аутор "Bačević, Nikola"
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- СтавкаGIS and geographical analysis of the main harbors in the world(De Gruyter, 2021) Valjarević, Aleksandar; Radovanović, Dragan; Šoškić, Svetislav; Bačević, Nikola; Milentijević, Nikola; Golijanin, Jelena; Ivanović, MarkoThis paper points out the possibilities of better exploitation of marine traffic as well as its connection with other kinds of traffic. Special attention is given to the analysis of 1,081 harbors about their availability during the year. The methods and algorithms used in GIS are buffers, cluster, method of interpolations, and network analysis. The methods used for the purpose of conducting numerical analyses are algorithms that served for the analysis of the network, its transport features, and the connectivity with harbors in terms of geospace. The main results found in this research showed that harbors have good connectivity in the first place with road traffic and after that with air and railroad traffic. According to data from 2019, all traffic lines cover 4.1 × 1015 km, and the road traffic has the most significant potential in connection with the harbors. The most connected harbors and airports are in the east coast of North America, west coast, north Europe, southern Europe, south-east Australia, a central part of Oceania, and south-east Africa. The results in the modified Likert scale between airports and harbors showed medium results. The densest road network is located in the eastern part of USA, western and central part of Europe, and east coast of China. The number of possible connected lines between main road nodes and harbors is 0.8 × 109. This type of traffic showed excellent results and connection with harbors. The number of possible connected lines per month between railroads and harbors is 1.3 × 103. This type of traffic showed low connectivity with the harbors. In the end comparison of harbors with air, road and railroad networks were established. The geographical position of harbors was analyzed, and better understanding was performed on a global scale.
- СтавкаLong Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia(MDPI, 2021) Valjarević, Aleksandar; Morar, Cezar; Živković, Jelena; Niemets, Liudmyla; Kićović, Dušan; Golijanin, Jelena; Gocić, Milena; Martić Bursać, Nataša; Stričević, Ljiljana; Žiberna, Igor; Bačević, Nikola; Milevski, Ivica; Durlević, Uroš; Lukić, TinThe use of weather satellite recordings has been growing rapidly over the last three decades. Determining the patterns between meteorological and topographical features is an important scientific job. Cloud cover analysis and properties can be of the utmost significance for potential cloud seeding. Here, the analysis of the cloud properties was conducted by means of Moderate Resolution Imaging Spectroradiometer (MODIS) satellite recordings. The resolution of used data was 1 km2 within the period of 30 years (1989–2019). This research showed moderate changing of cloudiness in the territory of Serbia with a high cloudiness in February, followed by cloudiness in January and November. For the past three decades, May has been the month with the highest cloudiness. The regions in the east and south-west, and particularly in the west, have a high absolute cloudiness, which is connected with the high elevation of the country. By means of long term monitoring, the whole territory of Serbia was analyzed for the first time, in terms of cloudiness. Apart from the statistical and numerical results obtained, this research showed a connection between relief and clouds, especially in the winter season. Linear regression MK (Mann-Kendall test) has proven this theory right, connecting high elevation sides with high absolute cloudiness through the year.