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The loess sequence preserved in the Požarevac brickyard in north-eastern Serbia comprises eight loess units separated by seven paleosols. Geochronological investigation using amino acid racemization and luminescence dating support stratigraphic correlations of loess units L3, S2LL1 and L1 at the Požarevac section with loess of glacial cycles E [Marine Isotope Stage (MIS) 10], D (MIS 9–8), C (MIS 7–6) and B (MIS 5–2) across central Europe. Correlation with the marine oxygen-isotope stratigraphy and associated paleoclimatic inferences are further supported by magnetic susceptibility, particle size and carbonate content measured in Požarevac sediments. Malacological investigations at the Požarevac section reveal the continuous presence of the Chondrula tridens and Helicopsis striata faunal assemblages throughout the last 350 ka. The loess malacological fauna, which is characterized by the complete absence of cold-resistant and cold-preferring species, suggests a stable, dry and relatively warm glacial and interglacial climate, compared with other central European loess localities. Together these data suggest that the south-eastern part of the Carpathian (Pannonian, Middle Danube) Basin was a refugium for warm-preferring and xerophilous land-snails during the generally unfavorable glacial climates of the late Middle and Late Pleistocene.
Slobodan B. Marković; Eric A. Oches; Zoran M. Perić; Tivadar Gaudenyi; Mlađen Jovanović; Györgi Sipos; Christine Thiel; Jan‐Pieter Buylaert; Stevan Savić; William D. McCoy; Milica G. Radaković; Rastko S. Marković; Milivoj B. Gavrilov. The Požarevac loess–paleosol sequence: a record of increased aridity in the south‐eastern margin of the Carpathian Basin during the last 350 ka. Journal of Quaternary Science 2021, 1 .
AMA StyleSlobodan B. Marković, Eric A. Oches, Zoran M. Perić, Tivadar Gaudenyi, Mlađen Jovanović, Györgi Sipos, Christine Thiel, Jan‐Pieter Buylaert, Stevan Savić, William D. McCoy, Milica G. Radaković, Rastko S. Marković, Milivoj B. Gavrilov. The Požarevac loess–paleosol sequence: a record of increased aridity in the south‐eastern margin of the Carpathian Basin during the last 350 ka. Journal of Quaternary Science. 2021; ():1.
Chicago/Turabian StyleSlobodan B. Marković; Eric A. Oches; Zoran M. Perić; Tivadar Gaudenyi; Mlađen Jovanović; Györgi Sipos; Christine Thiel; Jan‐Pieter Buylaert; Stevan Savić; William D. McCoy; Milica G. Radaković; Rastko S. Marković; Milivoj B. Gavrilov. 2021. "The Požarevac loess–paleosol sequence: a record of increased aridity in the south‐eastern margin of the Carpathian Basin during the last 350 ka." Journal of Quaternary Science , no. : 1.
In the light of climate change and burgeoning urbanization, heat loads in urban areas have emerged as serious issues, affecting the well-being of the population and the environment. In response to a pressing need for more standardised and communicable research into urban climate, the concept of local climate zones (LCZs) has been created. This concept aims to define the morphological types of (urban) surface with respect to the formation of local climatic conditions, largely thermal. This systematic review paper analyses studies that have applied the concept of LCZs to European urban areas. The methodology utilized pre-determined keywords and five steps of literature selection. A total of 91 studies were found eligible for analysis. The results show that the concept of LCZs has been increasingly employed and become well established in European urban climate research. Dozens of measurements, satellite observations, and modelling outcomes have demonstrated the characteristic thermal responses of LCZs in European cities. However, a substantial number of the studies have concentrated on the methodological development of the classification process, generating a degree of inconsistency in the delineation of LCZs. Recent trends indicate an increasing prevalence of the accessible remote-sensing based approach over accurate GIS-based methods in the delineation of LCZs. In this context, applications of the concept in fine-scale modelling appear limited. Nevertheless, the concept of the LCZ has proven appropriate and valuable to the provision of metadata for urban stations, (surface) urban heat island analysis, and the assessment of outdoor thermal comfort and heat risk. Any further development of LCZ mapping appears to require a standardised objective approach that may be globally applicable.
Michal Lehnert; Stevan Savić; Dragan Milošević; Jelena Dunjić; Jan Geletič. Mapping Local Climate Zones and Their Applications in European Urban Environments: A Systematic Literature Review and Future Development Trends. ISPRS International Journal of Geo-Information 2021, 10, 260 .
AMA StyleMichal Lehnert, Stevan Savić, Dragan Milošević, Jelena Dunjić, Jan Geletič. Mapping Local Climate Zones and Their Applications in European Urban Environments: A Systematic Literature Review and Future Development Trends. ISPRS International Journal of Geo-Information. 2021; 10 (4):260.
Chicago/Turabian StyleMichal Lehnert; Stevan Savić; Dragan Milošević; Jelena Dunjić; Jan Geletič. 2021. "Mapping Local Climate Zones and Their Applications in European Urban Environments: A Systematic Literature Review and Future Development Trends." ISPRS International Journal of Geo-Information 10, no. 4: 260.
An urban environment defines a specific micro-climate which directly affects the quality of life in urbanized areas and often has a negative impact on urban populations. Phenomena like urban heat and surface heat islands are direct products of an urban lifestyle. Urban meteorological networks (UMNs) are a tool that can help to better understand and analyze the current situation and make the right decisions about future urban development. Deployed to monitor and record different objects and their states inside urban areas, UMNs build a long-term meteorological data time series database. The most commonly used systems for achieving this goal include wireless sensor networks (WSNs). This paper presents a combined experience in deploying three different WSN systems. During seven years of research in this field, the authors have recognized the importance of data reliability in data acquisition. More importantly, due to the lack of research addressing the reliability of the data received from WSNs by the core segment of the server (processes used in receiving, validating, parsing, and storing data into a database instance), the received data are used in scientific studies without questioning their reliability. To determine the possibility of shifting information provided by the data measured from sensor networks before it is stored in a desired form of database, this paper proposes a highly reliable socket server model. The model is built with high reliability and performance in mind and it includes three major processes, which use a combination of signals and control messages to pass information about their states. A case study is performed using high-end hardware, running a Linux operating system stressed to its limits. Repetition testing revealed inconsistency in the information provided by the operating system to the application layer, which could lead to the loss of information about short-term and rarely occurring monitored objects. The results lead to the conclusion that there is a clear need for a higher level of data reliability in the process of data acquisition by UMNs. The proposed socket server should fill this gap within the server’s core segment.
Ivan Šećerov; Srđan Popov; Srđan Sladojević; Dragana Milin; Lazar Lazić; Dragan Milošević; Daniela Arsenović; Stevan Savić. Achieving High Reliability in Data Acquisition. Remote Sensing 2021, 13, 345 .
AMA StyleIvan Šećerov, Srđan Popov, Srđan Sladojević, Dragana Milin, Lazar Lazić, Dragan Milošević, Daniela Arsenović, Stevan Savić. Achieving High Reliability in Data Acquisition. Remote Sensing. 2021; 13 (3):345.
Chicago/Turabian StyleIvan Šećerov; Srđan Popov; Srđan Sladojević; Dragana Milin; Lazar Lazić; Dragan Milošević; Daniela Arsenović; Stevan Savić. 2021. "Achieving High Reliability in Data Acquisition." Remote Sensing 13, no. 3: 345.
The Urban Heat Islands (UHI) effect is a microclimatic phenomenon that especially affects urban areas. It is associated with significant temperature increases in the local microclimate, and may amplify heat waves. Due to their intensity, UHI causes not only thermal discomfort, but also reductions in the levels of life quality. This paper reviews the important role of green infrastructure as a means through which the intensity of UHI may be reduced, along with their negative impact on human comfort and wellbeing. Apart from a comprehensive review of the available literature, the paper reports on an analysis of case studies in a set of 14 cities in 13 countries representing various geographical regions and climate zones. The results obtained suggest that whereas UHI is a common phenomenon, green infrastructure in urban areas may under some conditions ameliorate their impacts. In addition, the study revealed that the scope and impacts of UHI are not uniform: depending on peculiarities of urban morphologies, they pose different challenges linked to the microclimate peculiar to each city. The implications of this paper are threefold. Firstly, it reiterates the complex interrelations of UHIs, heat waves and climate change. Secondly, it outlines the fact that keeping and increasing urban green resources leads to additional various benefits that may directly or indirectly reduce the impacts of UHI. Finally, the paper reiterates the need for city planners to pay more attention to possible UHI effects when initiating new building projects or when adjusting current ones.
Walter Leal Filho; Franziska Wolf; Ricardo Castro-Díaz; Chunlan Li; Vincent Ojeh; Nestor Gutiérrez; Gustavo Nagy; Stevan Savić; Claudia Natenzon; Abul Quasem Al-Amin; Marija Maruna; Juliane Bönecke. Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure. Sustainability 2021, 13, 753 .
AMA StyleWalter Leal Filho, Franziska Wolf, Ricardo Castro-Díaz, Chunlan Li, Vincent Ojeh, Nestor Gutiérrez, Gustavo Nagy, Stevan Savić, Claudia Natenzon, Abul Quasem Al-Amin, Marija Maruna, Juliane Bönecke. Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure. Sustainability. 2021; 13 (2):753.
Chicago/Turabian StyleWalter Leal Filho; Franziska Wolf; Ricardo Castro-Díaz; Chunlan Li; Vincent Ojeh; Nestor Gutiérrez; Gustavo Nagy; Stevan Savić; Claudia Natenzon; Abul Quasem Al-Amin; Marija Maruna; Juliane Bönecke. 2021. "Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure." Sustainability 13, no. 2: 753.
Temporal and spatial variability of annual and seasonal precipitation from 71 stations located in Western Balkan (WB) countries (Serbia, Bosnia and Herzegovina, and Montenegro) and their correlations with nine atmospheric circulation patterns was examined for the period 1950-2016. Annual precipitation increased significantly throughout the WB (from 2% to 8% per decade) on 20% of stations located mainly in the mountainous western Serbia and eastern Bosnia and Herzegovina. Winter was characterized by non?significant precipitation changes in most of the studied area, with only a few stations characterized by significant precipitation increase (up to 12% per decade) in the mountainous area of WB, and a few stations characterized by significant decrease (up to -6% per decade) in the Pannonian plain. Significant precipitation increase was noticed on 15% of the stations in spring, while it was noticed on 17% of the stations in autumn. Summer precipitation decreased significantly (up to -5% per decade) on a limited area of northern Serbia (6% of the stations), while the majority of stations showed non?significant increase. The strongest influences on annual precipitation in WB region are of the Arctic Oscillation (AO) and Mediterranean Oscillation (MO), leading to the precipitation decrease during their positive phases. Winter precipitation is significantly negatively correlated with AO, East Atlantic/Western Russia oscillation (EA/WR), and North Atlantic Oscillation (NAO) and has a significant positive correlation with Western Mediterranean Oscillation (WeMO) on the majority of stations. MO has the strongest influence on summer precipitation in WB region leading to precipitation decrease, while AO has the dominant influence on precipitation in the region during autumn.
Dragan Milosevic; Rastislav Stojsavljevic; Szilárd Szabó; Ugljesa Stankov; Stevan Savic; Luka Mitrovic. Spatio-temporal variability of precipitation over the Western Balkan countries and its links with the atmospheric circulation patterns. Journal of the Geographical Institute Jovan Cvijic, SASA 2021, 71, 29 -42.
AMA StyleDragan Milosevic, Rastislav Stojsavljevic, Szilárd Szabó, Ugljesa Stankov, Stevan Savic, Luka Mitrovic. Spatio-temporal variability of precipitation over the Western Balkan countries and its links with the atmospheric circulation patterns. Journal of the Geographical Institute Jovan Cvijic, SASA. 2021; 71 (1):29-42.
Chicago/Turabian StyleDragan Milosevic; Rastislav Stojsavljevic; Szilárd Szabó; Ugljesa Stankov; Stevan Savic; Luka Mitrovic. 2021. "Spatio-temporal variability of precipitation over the Western Balkan countries and its links with the atmospheric circulation patterns." Journal of the Geographical Institute Jovan Cvijic, SASA 71, no. 1: 29-42.
Urban areas are often overheated, which potentially results in a range of negative effects on the urban microclimate. One way to mitigate urban overheating is to provide shading by tall vegetation (trees). Simulations of insolation with different tree locations were used for insolation mitigation in previous research. However, in urban green spaces potential tree locations can be selected with greater freedom. Therefore, the method for selecting tree locations has to rely on optimization, as there are many possible combinations of locations. The aim of this paper is to devise an approach for insolation mitigation by changing the location of trees in urban green spaces. The approach uses input data that describe the geometry of the built environment and the geometry of trees, as well as climate and weather data (direct radiation, diffuse radiation and cloud cover). The algorithm is applicable to any location and urban environment. The approach uses the Evolutionary algorithm, a method based on natural selection suitable for solving optimization problems. The evolutionary approach is compared to the simulation of average insolation values and the simulations and selection of random tree locations. It is also applied to a real-world example. The results indicate that the proposed approach can be used to mitigate insolation in urban green spaces.
Vesna Stojakovic; Ivana Bajsanski; Stevan Savic; Dragan Milosevic; Bojan Tepavcevic. The influence of changing location of trees in urban green spaces on insolation mitigation. Urban Forestry & Urban Greening 2020, 53, 126721 .
AMA StyleVesna Stojakovic, Ivana Bajsanski, Stevan Savic, Dragan Milosevic, Bojan Tepavcevic. The influence of changing location of trees in urban green spaces on insolation mitigation. Urban Forestry & Urban Greening. 2020; 53 ():126721.
Chicago/Turabian StyleVesna Stojakovic; Ivana Bajsanski; Stevan Savic; Dragan Milosevic; Bojan Tepavcevic. 2020. "The influence of changing location of trees in urban green spaces on insolation mitigation." Urban Forestry & Urban Greening 53, no. : 126721.
Dramatic population growth and climate change lead to an increasing demand for groundwater resources. According to The 2018 edition of the United Nations World Water Development Report, nearly 6 billion people will face severe water scarcity by 2050. Groundwater represents the world’s largest available freshwater resource and it is essential for domestic purpose, industrial, and agricultural uses. Therefore, it is very important to identify the potential locations for new groundwater zones development. Here, we utilized geographic information system (GIS) and remote sensing (RS) techniques for the delineation of groundwater potential zones in the Titel Municipality, located in the Autonomous Province of Vojvodina. The groundwater in the study area is affected by elevation difference, agricultural production, and its geographical position. Titel Municipality has a very good agriculture potential that can be only fully exploited by improving groundwater management. Considering that, for the delineation of groundwater potential zones we prepared 6 thematic layers such as geology, geomorphology, land use/land cover, soil, drainage density, and slope. According to their relevant importance in groundwater occurrence, all layers and their features were assigned weights using the Saaty’s scale. Weights of layers were normalized using analytical hierarchical process techniques (AHP). Finally, layers were integrated and overlaid using QGIS software for generating the Groundwater Potential Zone (GWPZ) map of the study area. As a result, the groundwater potential zones in the Titel Municipality were characterized and classified into five classes as very good (7.13%), good (35.44%), moderate (21.27%), poor (31.41%) and very poor (3.11%). With these techniques, we showed that very good and good groundwater zones are predominantly located in the alluvial plain and the lower river terrace, while poor zones mostly evident on the landform of the loess plateau and artificial surface. The GWPZ map will serve as a useful guide for sustainable management and utilization of the region as well as to improve the irrigation facility and develop the agriculture productivity of the area.
Mirjana Radulović; Tijana Đorđević; Nastasija Grujić; Branislav Pejak; Sanja Brdar; Stevan Savić; Dragoslav Pavić. Using GIS and Remote Sensing Techniques for Delineation of Groundwater Potential Zones - A Case Study of the Titel Municipality, Serbia. 2020, 1 .
AMA StyleMirjana Radulović, Tijana Đorđević, Nastasija Grujić, Branislav Pejak, Sanja Brdar, Stevan Savić, Dragoslav Pavić. Using GIS and Remote Sensing Techniques for Delineation of Groundwater Potential Zones - A Case Study of the Titel Municipality, Serbia. . 2020; ():1.
Chicago/Turabian StyleMirjana Radulović; Tijana Đorđević; Nastasija Grujić; Branislav Pejak; Sanja Brdar; Stevan Savić; Dragoslav Pavić. 2020. "Using GIS and Remote Sensing Techniques for Delineation of Groundwater Potential Zones - A Case Study of the Titel Municipality, Serbia." , no. : 1.
In this study, the Local Climate Zones (LCZs) in Novi Sad, the second largest city in Serbia, are analysed as to surface temperature differences. The LCZs were delineated on the basis of the GIS-based method created by Geletic & Lehnert (2016). Land Surface Temperatures (LSTs) were derived from the satellites Terra, sensor ASTER, and LANDSAT-8. The thermal images were provided at a similar time (at about 9.30 AM) between 2002 and 2008 (ASTER) and between 2013 and 2017 (LANDSAT-8). Statistical analyses, including the analysis of variance (ANOVA) and Tukey-HSD test, were employed to reveal LST differences between the LCZs. The results indicate that in 84% of cases there were significant differences in LST between pairs of LCZs. Temperature differences between LCZs were the most pronounced in the summer season. In general, 8 (large low-rise), 10 (heavy industry), 2 (compact midrise) and 3 (compact low-rise) LCZs had the highest surface temperatures in Novi Sad. Contrary to this, LCZs A (dense trees), B (scattered trees) G (water bodies) were the coolest zones.
Stevan Savic; Jan Geletic; Dragan Milosevic; Michal Lehnert. Analysis of land surface temperatures in the "Local Climate Zones" of Novi Sad (Serbia). Glasnik Srpskog geografskog drustva 2020, 100, 41 -50.
AMA StyleStevan Savic, Jan Geletic, Dragan Milosevic, Michal Lehnert. Analysis of land surface temperatures in the "Local Climate Zones" of Novi Sad (Serbia). Glasnik Srpskog geografskog drustva. 2020; 100 (1):41-50.
Chicago/Turabian StyleStevan Savic; Jan Geletic; Dragan Milosevic; Michal Lehnert. 2020. "Analysis of land surface temperatures in the "Local Climate Zones" of Novi Sad (Serbia)." Glasnik Srpskog geografskog drustva 100, no. 1: 41-50.
Urban meteorological network (UMN) was established in the Central European City of Novi Sad (Serbia) based on "local climate zones" (LCZs) system. Physiologically Equivalent Temperature (PET) index was used for the assessment of outdoor thermal comfort in the "built" and "land cover" LCZ classes of Novi Sad. The index was calculated in the RayMan software based on the meteorological, physiological as well as building and vegetation data. Temporal analysis was performed for extreme heat stress days (PETmax ? 41 ?C), extreme heat stress hours (PETav ? 41 ?C) and days with occurrence of "tropical nights" (Tmin > 20 ?C) during exceptionally hot summer of 2015. Our results show that extreme heat stress hours are the least frequent in compact midrise LCZ 2, followed by dense trees LCZ A. On the contrary, countryside (low plants - LCZ D) showed to be the most uncomfortable area during daytime followed by compact low-rise areas (LCZ 3). Tropical nights are the most frequent in midrise LCZs 5 and 2 (40-46 nights) and decreasing towards open, sparsely built and natural LCZs (6-8 tropical nights in LCZs A and D). This is almost 800% decrease and it has implications for health and recreation of urban population and emphasizes the need for UMN development based on LCZ system.
Dragan Milosevic; Stevan Savic; Danijela Arsenovic; Zorana Luzanin; Jelena Dunjic. Analysis of human thermal comfort in Central European City during summer of 2015: A case of Novi Sad (Serbia). Glasnik Srpskog geografskog drustva 2020, 100, 31 -39.
AMA StyleDragan Milosevic, Stevan Savic, Danijela Arsenovic, Zorana Luzanin, Jelena Dunjic. Analysis of human thermal comfort in Central European City during summer of 2015: A case of Novi Sad (Serbia). Glasnik Srpskog geografskog drustva. 2020; 100 (1):31-39.
Chicago/Turabian StyleDragan Milosevic; Stevan Savic; Danijela Arsenovic; Zorana Luzanin; Jelena Dunjic. 2020. "Analysis of human thermal comfort in Central European City during summer of 2015: A case of Novi Sad (Serbia)." Glasnik Srpskog geografskog drustva 100, no. 1: 31-39.
A direct outcome of the global climate change is the modification of seasonal precipitation patterns, apparent on a monthly temporal scale. In Central Europe, it includes more frequent high-intensity rainfalls, occurring mostly during spring and summer. These heavy rainfalls induce pluvial floods in urban areas due to a high percentage of impervious surfaces and limited drainage systems. This hazard affects Central European cities and impacts many receptors, including lives, infrastructures, private properties or the functioning of cities. This study focuses on the monitoring of precipitation events with the aim of revealing precipitation patterns across two different types of land cover: urban and suburban/rural areas of Novi Sad (Serbia). Measurements from seven rain gauge stations were used as input data, covering the 2015-2018 period. The precipitation data were analysed using 12 precipitation indices, nine of which were defined by the Expert Team on Climate Change Detection and Indices (ETCCDI), while three additional were designed specifically for this study. Based on their locations, the stations were classified into the 'urbanized' and 'non-urbanised' group. The concept of the Local Climate Zone (LCZ) was used to classify urbanised areas LCZ1-8, non-urbanised areas LCZ9 and the land cover zones (LCZ A-G). A statistical analysis based on the ANOVA F-test was conducted, defining the significance threshold at 90% for a = 0.01 and at 95% for a = 0.05. The obtained results revealed one relation for the CDD index at 95% and two relations at 90% for CDD and Rp95 indices, showing a relation between heavy rainfall and the type of land cover. Statistical results underline the need for a denser station network and longer monitoring periods in order to proceed to stronger statistical tests and make it possible to establish other relations with the climate indices. urban climate; heavy rainfall; monitoring network; precipitation indices; pluvial flood; Novi Sad
Stevan Savić; Mathias Kalfayan; Dragan Dolinaj. Precipitation spatial patterns in cities with different urbanisation types: Case study of Novi Sad (Serbia) as a medium-sized city. Geographica Pannonica 2020, 24, 88 -99.
AMA StyleStevan Savić, Mathias Kalfayan, Dragan Dolinaj. Precipitation spatial patterns in cities with different urbanisation types: Case study of Novi Sad (Serbia) as a medium-sized city. Geographica Pannonica. 2020; 24 (2):88-99.
Chicago/Turabian StyleStevan Savić; Mathias Kalfayan; Dragan Dolinaj. 2020. "Precipitation spatial patterns in cities with different urbanisation types: Case study of Novi Sad (Serbia) as a medium-sized city." Geographica Pannonica 24, no. 2: 88-99.
This study analyzes inter- and intra-zonal seasonal variability of surface urban heat islands (SUHIs) within the methodological framework of local climate zones (LCZs) in three central European cities (Prague, Brno and Novi Sad). These cities differ in urban area and structure as well as in topography and hinterland land-cover features. LCZs were delineated on the basis of a GIS-based classification method. Land surface temperature (LST) was derived from LANDSAT-8 scenes in the period 2013–2018. The first step was to detect seasonal SUHI intensity differences for built LCZ types and LST for land-cover types of LCZ. The results revealed the highest differences in summer and spring, and lowest in winter. The highest SUHI intensity values occur in densely built-up and industrial zones, and the lowest in sparsely-built city outskirts. The coolest LCZs based on LST were dense trees and water areas in spring and summer. The second step aimed to analyze the effects of vegetation on SUHI formation. Hence, 11 land cover subclasses (from dense trees to bush/scrub) were defined in order to research intra-zonal seasonal LST variability. The height and density of vegetation have substantial effects on intra-zonal variability of LST in land-cover types of LCZ, whereas differences between forest subclasses were relatively low. Finally, the character of the vegetation had a substantial influence on intra-zonal LCZ variability of LST and SUHI formation. Further research in this field could contribute to better understanding of micro- and mezzo-climate-scale patterns, as well as better adaptation to climate change in urban areas.
Jan Geletič; Michal Lehnert; Stevan Savić; Dragan Milošević. Inter-/intra-zonal seasonal variability of the surface urban heat island based on local climate zones in three central European cities. Building and Environment 2019, 156, 21 -32.
AMA StyleJan Geletič, Michal Lehnert, Stevan Savić, Dragan Milošević. Inter-/intra-zonal seasonal variability of the surface urban heat island based on local climate zones in three central European cities. Building and Environment. 2019; 156 ():21-32.
Chicago/Turabian StyleJan Geletič; Michal Lehnert; Stevan Savić; Dragan Milošević. 2019. "Inter-/intra-zonal seasonal variability of the surface urban heat island based on local climate zones in three central European cities." Building and Environment 156, no. : 21-32.
An increasing number of urban meteorological networks (UMNs) and automated data acquisition are irreplaceable tools in modern urban climate monitoring, evaluation, and analysis. The most serious issue in such systems is data loss, caused primarily by communication problems between stations and servers. The Novi Sad Urban Network (NSUNET) consists of 28 remote stations and 2 servers built solely on open-source technologies. It is used for monitoring climate peculiarities and acquiring long-term meteorological data from the urban area of Novi Sad, as well as for the early warning notification to the city emergency services of the current urban weather conditions. Since its deployment, the system has managed to overcome most of the problems related to today’s UMNs, to operate at a low Internet service fee, and ensure high reliability and performance on low-budget hardware. This study includes details on how to develop such a system and it presents a statistical analysis of the NSUNET system’s performances and the measurement data. Furthermore, this kind of monitoring system provides good results in the analysis of air/surface temperature and outdoor human thermal comfort in the local climate zones (LCZs) of urban and surrounding areas and can help identify hot spots/districts in the urban area.
Ivan B. Šećerov; Stevan M. Savić; Dragan D. Milošević; Daniela M. Arsenović; Dragan M. Dolinaj; Srdjan B. Popov. Progressing urban climate research using a high-density monitoring network system. Environmental Monitoring and Assessment 2019, 191, 89 .
AMA StyleIvan B. Šećerov, Stevan M. Savić, Dragan D. Milošević, Daniela M. Arsenović, Dragan M. Dolinaj, Srdjan B. Popov. Progressing urban climate research using a high-density monitoring network system. Environmental Monitoring and Assessment. 2019; 191 (2):89.
Chicago/Turabian StyleIvan B. Šećerov; Stevan M. Savić; Dragan D. Milošević; Daniela M. Arsenović; Dragan M. Dolinaj; Srdjan B. Popov. 2019. "Progressing urban climate research using a high-density monitoring network system." Environmental Monitoring and Assessment 191, no. 2: 89.
Pluvial flooding is a result of overland flow and ponding before the runoff enters any watercourse, drainage system or sewer, or cannot enter it because the network is full to capacity, usually caused by intense rainfall. River and coastal floods get the most attention since they are largest and last the longest, while pluvial floods are relatively marginalized in research. Therefore, the main goal of this research was to show risk posed by pluvial floods, their connection to current global climate change processes, present effects of flooding in European cities, as well as what we can expect in the future. Furthermore, the aims were to present and get more familiar with scientific projects, strategies, directives and measures devised both on national and international levels, that deal with urban pluvial flood issues across the European continent. Climate change projections indicate that there will be an increase in the frequency and intensity of rainfall events throughout Europe and along with ongoing urbanization, the problem of pluvial flooding will most certainly require more attention, which it is starting to receive. Some countries have already developed their strategies and initiatives and implemented both structural and non-structural measures, such as spatial planning, constructional measures, information systems, reducing land sealing through policies, building codes and standards, on-site improvement of retention, infiltration, evaporation, and rainfall water recycling with the use of green roofs, permeable or porous pavements, rain gardening or urban rainwater harvesting. At the same time, there are numerous research papers, studies, conferences and workshops devoted to the problem of pluvial flooding and its management carried out in an attempt to properly deal with this hazard. urban areas; pluvial flooding; climate change; precipitation; scientific projects; water management; Europe
Marija Prokić; Stevan Savić; Dragoslav Pavić. Pluvial flooding in urban areas across the European continent. Geographica Pannonica 2019, 23, 216 -232.
AMA StyleMarija Prokić, Stevan Savić, Dragoslav Pavić. Pluvial flooding in urban areas across the European continent. Geographica Pannonica. 2019; 23 (4):216-232.
Chicago/Turabian StyleMarija Prokić; Stevan Savić; Dragoslav Pavić. 2019. "Pluvial flooding in urban areas across the European continent." Geographica Pannonica 23, no. 4: 216-232.
Monitoring and recording large time series of data and making them available for studying—are the key roles of environmental monitoring systems. This study produce review of three different measurement monitoring systems (NSUNET, WAHASTRAT and MERIEXWA) with same design, which were placed during different time frame in the Northern Serbia (Vojvodina Province). Each of three monitoring systems has different demands and requirements which were addressed accordingly in their design. Power supply conditions for two systems are primary cells and solar panels, while NSUNET has constant power supply only during nighttime. Data is transmitted in MERIEXWA using binary protocol, WAHASTRAT using http, while NSUNET sends data over ftp. Same topology is used in all systems—each node sends data directly to the central location (in case of NSUNET two locations are provided for backup purposes). NSUNET system sends data using specific structure and stores them as plain text files. It also has different approach for time synchronization and monitoring issues. The main result of this study is to present how to create system that provides good quality and unchanged data from monitoring sensor to the end user while maintaining whole data structure transmission costs low. Furthermore, data collected from NSUNET were used in order to assess the influence of urbanization on regional climate modification, which leads to the creation of urban climate. Propositions for new system development combining best from all three systems are discussed.
Ivan Šećerov; Dragan Dolinaj; Dragoslav Pavić; Dragan Milošević; Stevan Savić; Srđan Popov; Žarko Živanov. Environmental Monitoring Systems: Review and Future Development. Wireless Engineering and Technology 2019, 10, 1 -18.
AMA StyleIvan Šećerov, Dragan Dolinaj, Dragoslav Pavić, Dragan Milošević, Stevan Savić, Srđan Popov, Žarko Živanov. Environmental Monitoring Systems: Review and Future Development. Wireless Engineering and Technology. 2019; 10 (01):1-18.
Chicago/Turabian StyleIvan Šećerov; Dragan Dolinaj; Dragoslav Pavić; Dragan Milošević; Stevan Savić; Srđan Popov; Žarko Živanov. 2019. "Environmental Monitoring Systems: Review and Future Development." Wireless Engineering and Technology 10, no. 01: 1-18.
The aim of this paper was to assess the impact of heat-waves on mortality in ten Czech cities, using data recorded during the summers of 2015 and 2016. Temperature-related mortality during heat-waves was investigated by comparing mortality figures on heat-wave days and those on other days by means of the Mann-Whitney U test. Results for all-cause mortality, cardiovascular and respiratory diseases (CVD+R) mortality, as well as for mortality in the over-65 age group, show statistically significant differences (p <0.05) during heat-waves compared with other days in seven of ten cities investigated. The effect of heat-waves on mortality did not reach statistical significance in Olomouc, Plzeň and Liberec. The results suggest that further studies addressing spatial patterns of mortality during heat-waves in urban areas are required to assess the vulnerability of the urban populations in particular cities and types of neighbourhood. Heat-wave; urban population; temperature-related mortality; Czech Republic
Daniela Arsenović; Michal Lehnert; David Fiedor; Petr Šimáček; Hana Středová; Tomáš Středa; Stevan Savić. Heat-waves and mortality in Czech cities: A case study for the summers of 2015 and 2016. Geographica Pannonica 2019, 23, 162 -172.
AMA StyleDaniela Arsenović, Michal Lehnert, David Fiedor, Petr Šimáček, Hana Středová, Tomáš Středa, Stevan Savić. Heat-waves and mortality in Czech cities: A case study for the summers of 2015 and 2016. Geographica Pannonica. 2019; 23 (3):162-172.
Chicago/Turabian StyleDaniela Arsenović; Michal Lehnert; David Fiedor; Petr Šimáček; Hana Středová; Tomáš Středa; Stevan Savić. 2019. "Heat-waves and mortality in Czech cities: A case study for the summers of 2015 and 2016." Geographica Pannonica 23, no. 3: 162-172.
The main goal of this research is to assess risk and map methodologies for the study of intensive heat waves in Novi Sad’s urban area. Novi Sad is the second largest city in the Republic of Serbia, with a built-up area of 102 km2 and the population of 330,000 (data as of 2017). Intensive heat waves are a frequently occurring hazard in Central and Southeastern Europe and they may lead to a higher mortality of urban populations. Therefore, for the heat wave risk assessment, in situ air temperature (Ta) measurements from urban stations and the mortality rates of urban populations were used. The methodology used in this heat wave risk assessment is based on European Commission’s Guidelines for Risk Assessment and Mapping. The nocturnal air temperatures from 9 PM to 5 AM during the summer of 2015 (as one of the hottest summer in the past few decades) were used. The nocturnal urban heat island (UHI) intensity values between the various built-up zones and natural surrounding areas were used for the hazard level calculation. The average daily number of deaths by local climate zones (LCZs) was used to define the impact level of the vulnerability index. The results show that the most densely built-up areas (LCZs 2 and 5) had very high or high risk values and a higher rate of mortality. According to these results, local authorities could define hot spots where they could place medical and rescue teams and install points with water supplies. Furthermore, local and regional authorities, medical and urban planning institutions can use the obtained results and maps to prevent and mitigate climate-related hazards.
Stevan Savić; Daniela Arsenović; Vladimir Marković; Dragan D. Milošević. Temperature Risk Assessment in Urban Environments During Heat Wave Periods: A Case Study on the City of Novi Sad (Serbia). Climate Change Management 2018, 185 -197.
AMA StyleStevan Savić, Daniela Arsenović, Vladimir Marković, Dragan D. Milošević. Temperature Risk Assessment in Urban Environments During Heat Wave Periods: A Case Study on the City of Novi Sad (Serbia). Climate Change Management. 2018; ():185-197.
Chicago/Turabian StyleStevan Savić; Daniela Arsenović; Vladimir Marković; Dragan D. Milošević. 2018. "Temperature Risk Assessment in Urban Environments During Heat Wave Periods: A Case Study on the City of Novi Sad (Serbia)." Climate Change Management , no. : 185-197.
Rivers on territory of the Republic of Serbia can be separated to three sea drainage basins: Black, Adriatic and Aegean. Majority of rivers belong to the Black Sea drainage basin. The Danube is the most important river in Serbia and one of the most important rivers of Europe. All rivers investigated in this paper represent direct or indirect tributaries of the Danube River and as that, they are belonging to the Black Sea drainage basin. In this study, the water quality status and the spatial and temporal trends of seven major rivers in Serbia were assessed through the application of ten parameters of Water Quality Index. Ten year (2004–2013) public database of environmental data was used. Into considerations were taken differences between every river individually and difference between sample positions on every single river. Based on the chemical parameters of water quality, it can be seen that the biggest rivers in Serbia show different values of WQ parameters. The highest WQ value is measured on the Drina River, while the lowest value is measured on the Južna Morava and the Tisza River. Analyses of parameters per period of year show that there is a statistically significant difference between values during warm and cold periods.
Igor Leščešen; Dragan Dolinaj; Milana Pantelić; Stevan Savić; Dragan Milošević. Statistical Analysis of Water Quality Parameters in Seven Major Serbian Rivers during 2004‒2013 Period. Water Resources 2018, 45, 418 -426.
AMA StyleIgor Leščešen, Dragan Dolinaj, Milana Pantelić, Stevan Savić, Dragan Milošević. Statistical Analysis of Water Quality Parameters in Seven Major Serbian Rivers during 2004‒2013 Period. Water Resources. 2018; 45 (3):418-426.
Chicago/Turabian StyleIgor Leščešen; Dragan Dolinaj; Milana Pantelić; Stevan Savić; Dragan Milošević. 2018. "Statistical Analysis of Water Quality Parameters in Seven Major Serbian Rivers during 2004‒2013 Period." Water Resources 45, no. 3: 418-426.
This study uses the MUKLIMO_3 urban climate model (in German, Mikroskaliges Urbanes KLImaMOdell in 3-Dimensionen) and measurements from an urban climate network in order to simulate, validate and analyse the spatiotemporal pattern of human thermal comfort outdoors in the city of Brno (Czech Republic) during a heat-wave period. HUMIDEX, a heat index designed to quantify human heat exposure, was employed to assess thermal comfort, employing air temperature and relative humidity data. The city was divided into local climate zones (LCZs) in order to access differences in intra-urban thermal comfort. Validation of the model results, based on the measurement dates within the urban monitoring network, confirmed that the MUKLIMO_3 micro-scale model had the capacity to simulate the main spatiotemporal patterns of thermal comfort in an urban area and its vicinity. The results suggested that statistically significant differences in outdoor thermal comfort exist in the majority of cases between different LCZs. The most built-up LCZ types (LCZs 2, 3, 5, 8 and 10) were disclosed as the most uncomfortable areas of the city. Hence, conditions of great discomfort (HUMIDEX >40) were recorded in these areas, mainly in the afternoon hours (from 13.00 to 18.00 CEST), while some thermal discomfort continued overnight. In contrast, HUMIDEX values in sparsely built-up LCZ 9 and non-urban LCZs were substantially lower and indicated better thermal conditions for the urban population. Interestingly, the model captured a local increase of HUMIDEX values arising out of air humidity in LCZs with the presence of more vegetation (LCZs A and B) and in the vicinity of larger bodies of water (LCZ G).
Jan Geletič; Michal Lehnert; Stevan Savić; Dragan Milošević. Modelled spatiotemporal variability of outdoor thermal comfort in local climate zones of the city of Brno, Czech Republic. Science of The Total Environment 2018, 624, 385 -395.
AMA StyleJan Geletič, Michal Lehnert, Stevan Savić, Dragan Milošević. Modelled spatiotemporal variability of outdoor thermal comfort in local climate zones of the city of Brno, Czech Republic. Science of The Total Environment. 2018; 624 ():385-395.
Chicago/Turabian StyleJan Geletič; Michal Lehnert; Stevan Savić; Dragan Milošević. 2018. "Modelled spatiotemporal variability of outdoor thermal comfort in local climate zones of the city of Brno, Czech Republic." Science of The Total Environment 624, no. : 385-395.
Risk assessment and mapping methodologies for heat waves as frequently occurring hazards in central and southeastern Europe were applied in this study, and the impact of heat waves on the mortality of urban populations was determined as part of the assessment. The methodology for conducting the heat wave risk assessment is based on European Commission’s Guidelines for Risk Assessment and Mapping. The Novi Sad (Serbia) urban area was studied during summer 2015, which was one of the hottest summers in the last few decades. In situ air temperature measurements from urban stations and mortality of urban populations were used. Nocturnal urban heat island (UHI) intensity values between the various built-up zones and natural surrounding areas were used for the hazard level calculation. Temperature data from 9 p.m. to 5 a.m. were used because during the night, the UHI intensity reached its maximum values. The average daily number of deaths by LCZs was used to define the impact level of the vulnerability index. Calculations for both hazard levels were completed during two intensive heat waves (in July and August 2015) when it was expected that there may be a high level of risk. The results and maps show that the urban area is complex, and the heat wave risk on the population is not uniform. The most densely built-up areas (LCZs 2, 5 and 6) have very high or high risk values that are influenced by a higher rate of mortality. The obtained results and maps can be used by local authorities to prevent and mitigate climate-related hazards, for medical institutions as well as urban planners and for ancillary local, regional or national services. According to these results, the local authorities could define hot spots where they can place medical and rescue teams and install points with water supplies, etc.
Stevan Savić; Vladimir Marković; Ivan Šećerov; Dragoslav Pavić; Daniela Arsenović; Dragan Milosevic; Dragan Dolinaj; Imre Nagy; Milana Pantelić. Heat wave risk assessment and mapping in urban areas: case study for a midsized Central European city, Novi Sad (Serbia). Natural Hazards 2018, 91, 891 -911.
AMA StyleStevan Savić, Vladimir Marković, Ivan Šećerov, Dragoslav Pavić, Daniela Arsenović, Dragan Milosevic, Dragan Dolinaj, Imre Nagy, Milana Pantelić. Heat wave risk assessment and mapping in urban areas: case study for a midsized Central European city, Novi Sad (Serbia). Natural Hazards. 2018; 91 (3):891-911.
Chicago/Turabian StyleStevan Savić; Vladimir Marković; Ivan Šećerov; Dragoslav Pavić; Daniela Arsenović; Dragan Milosevic; Dragan Dolinaj; Imre Nagy; Milana Pantelić. 2018. "Heat wave risk assessment and mapping in urban areas: case study for a midsized Central European city, Novi Sad (Serbia)." Natural Hazards 91, no. 3: 891-911.
Dragan D. Milošević; Ivana V. Bajšanski; Stevan M. Savić. Influence of changing trees locations on thermal comfort on street parking lot and footways. Urban Forestry & Urban Greening 2017, 23, 113 -124.
AMA StyleDragan D. Milošević, Ivana V. Bajšanski, Stevan M. Savić. Influence of changing trees locations on thermal comfort on street parking lot and footways. Urban Forestry & Urban Greening. 2017; 23 ():113-124.
Chicago/Turabian StyleDragan D. Milošević; Ivana V. Bajšanski; Stevan M. Savić. 2017. "Influence of changing trees locations on thermal comfort on street parking lot and footways." Urban Forestry & Urban Greening 23, no. : 113-124.