TY  - JOUR
AU  - Milentijević, Nikola
AU  - Valjarević, Aleksandar
AU  - Bačević, Nikola
AU  - Ristić, Dušan
AU  - Kalkan, Kristina
AU  - Cimbaljević, Marija
AU  - Dragojlović, Jovan
AU  - Savić, Stevan
AU  - Pantelić, Milana
PY  - 2022
UR  - http://gery.gef.bg.ac.rs/handle/123456789/1182
AB  - Climate change is one of the largest environmental issues causing hydroclimatological extremes such as floods, droughts, and aridity. The aim of this study is to assess the observed and projected climate changes in Bačka (Serbia). Detailed trend analyses and possible climate scenarios over Bačka has not been presented up to now. In this paper, four data sets were extracted and calculated: mean annual air temperature, mean air temperatures during the vegetation period, mean annual precipitation and total precipitation during the vegetation period. The presented parameters were obtained from the annual meteorological reports of the Republic Hydrometeorological Service of Serbia. Trend equation based on linear regression, trend magnitude according to the trend equation, and Mann-Kendall statistics have been used for trend analysis of climatic parameters. A GIS modeling of the possible climate scenario was created according to the Beijing Climate Center Climate System Model (BCC-CSM2-MR). Based on the trend equations, positive trends related to air temperature and precipitation variables are dominant. The trend magnitude shows the largest mean increase in all time series related to air temperature during the vegetation period. The highest mean precipitation increase occurs only in two time series. The Mann-Kendall statistics showed significantly positive trends in 11 cases and no changes in 9 cases. According to BCC-CSM2-MR, changes will be especially dominant in case of air temperatures. The expected changes in the total precipitation during the vegetation period show a tendency towards semiarid conditions. The presented results of observed and projected climate changes demand adaptation measures, especially from the aspect of sustainable agriculture.
PB  - Budapest : Hungarian Meteorological Service
T2  - Időjárás
T1  - Assessment of observed and projected climate changes in Bačka (Serbia) using trend analysis and climate modeling
VL  - 126
IS  - 1
SP  - 47
EP  - 68
DO  - 10.28974/idojaras.2022.1.3
ER  - 

@article{
author = "Milentijević, Nikola and Valjarević, Aleksandar and Bačević, Nikola and Ristić, Dušan and Kalkan, Kristina and Cimbaljević, Marija and Dragojlović, Jovan and Savić, Stevan and Pantelić, Milana",
year = "2022",
abstract = "Climate change is one of the largest environmental issues causing hydroclimatological extremes such as floods, droughts, and aridity. The aim of this study is to assess the observed and projected climate changes in Bačka (Serbia). Detailed trend analyses and possible climate scenarios over Bačka has not been presented up to now. In this paper, four data sets were extracted and calculated: mean annual air temperature, mean air temperatures during the vegetation period, mean annual precipitation and total precipitation during the vegetation period. The presented parameters were obtained from the annual meteorological reports of the Republic Hydrometeorological Service of Serbia. Trend equation based on linear regression, trend magnitude according to the trend equation, and Mann-Kendall statistics have been used for trend analysis of climatic parameters. A GIS modeling of the possible climate scenario was created according to the Beijing Climate Center Climate System Model (BCC-CSM2-MR). Based on the trend equations, positive trends related to air temperature and precipitation variables are dominant. The trend magnitude shows the largest mean increase in all time series related to air temperature during the vegetation period. The highest mean precipitation increase occurs only in two time series. The Mann-Kendall statistics showed significantly positive trends in 11 cases and no changes in 9 cases. According to BCC-CSM2-MR, changes will be especially dominant in case of air temperatures. The expected changes in the total precipitation during the vegetation period show a tendency towards semiarid conditions. The presented results of observed and projected climate changes demand adaptation measures, especially from the aspect of sustainable agriculture.",
publisher = "Budapest : Hungarian Meteorological Service",
journal = "Időjárás",
title = "Assessment of observed and projected climate changes in Bačka (Serbia) using trend analysis and climate modeling",
volume = "126",
number = "1",
pages = "47-68",
doi = "10.28974/idojaras.2022.1.3"
}

Milentijević, N., Valjarević, A., Bačević, N., Ristić, D., Kalkan, K., Cimbaljević, M., Dragojlović, J., Savić, S.,& Pantelić, M.. (2022). Assessment of observed and projected climate changes in Bačka (Serbia) using trend analysis and climate modeling. in Időjárás
Budapest : Hungarian Meteorological Service., 126(1), 47-68.
https://doi.org/10.28974/idojaras.2022.1.3

Milentijević N, Valjarević A, Bačević N, Ristić D, Kalkan K, Cimbaljević M, Dragojlović J, Savić S, Pantelić M. Assessment of observed and projected climate changes in Bačka (Serbia) using trend analysis and climate modeling. in Időjárás. 2022;126(1):47-68.
doi:10.28974/idojaras.2022.1.3 .

Milentijević, Nikola, Valjarević, Aleksandar, Bačević, Nikola, Ristić, Dušan, Kalkan, Kristina, Cimbaljević, Marija, Dragojlović, Jovan, Savić, Stevan, Pantelić, Milana, "Assessment of observed and projected climate changes in Bačka (Serbia) using trend analysis and climate modeling" in Időjárás, 126, no. 1 (2022):47-68,
https://doi.org/10.28974/idojaras.2022.1.3 . .

TY  - JOUR
AU  - Valjarević, Aleksandar
AU  - Radovanović, Dragan
AU  - Šoškić, Svetislav
AU  - Bačević, Nikola
AU  - Milentijević, Nikola
AU  - Golijanin, Jelena
AU  - Ivanović, Marko
PY  - 2021
UR  - https://gery.gef.bg.ac.rs/handle/123456789/1113
AB  - This 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.
PB  - De Gruyter Open Access
T2  - Open Geosciences
T1  - GIS and geographical analysis of the main harbors in the world
VL  - 13
IS  - 1
SP  - 639
EP  - 650
DO  - 10.1515/geo-2020-0223
UR  - https://hdl.handle.net/21.15107/rcub_gery_1113
ER  - 

@article{
author = "Valjarević, Aleksandar and Radovanović, Dragan and Šoškić, Svetislav and Bačević, Nikola and Milentijević, Nikola and Golijanin, Jelena and Ivanović, Marko",
year = "2021",
abstract = "This 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.",
publisher = "De Gruyter Open Access",
journal = "Open Geosciences",
title = "GIS and geographical analysis of the main harbors in the world",
volume = "13",
number = "1",
pages = "639-650",
doi = "10.1515/geo-2020-0223",
url = "https://hdl.handle.net/21.15107/rcub_gery_1113"
}

Valjarević, A., Radovanović, D., Šoškić, S., Bačević, N., Milentijević, N., Golijanin, J.,& Ivanović, M.. (2021). GIS and geographical analysis of the main harbors in the world. in Open Geosciences
De Gruyter Open Access., 13(1), 639-650.
https://doi.org/10.1515/geo-2020-0223
https://hdl.handle.net/21.15107/rcub_gery_1113

Valjarević A, Radovanović D, Šoškić S, Bačević N, Milentijević N, Golijanin J, Ivanović M. GIS and geographical analysis of the main harbors in the world. in Open Geosciences. 2021;13(1):639-650.
doi:10.1515/geo-2020-0223
https://hdl.handle.net/21.15107/rcub_gery_1113 .

Valjarević, Aleksandar, Radovanović, Dragan, Šoškić, Svetislav, Bačević, Nikola, Milentijević, Nikola, Golijanin, Jelena, Ivanović, Marko, "GIS and geographical analysis of the main harbors in the world" in Open Geosciences, 13, no. 1 (2021):639-650,
https://doi.org/10.1515/geo-2020-0223 .,
https://hdl.handle.net/21.15107/rcub_gery_1113 .

TY  - JOUR
AU  - Valjarević, Aleksandar
AU  - Morar, Cezar
AU  - Živković, Jelena
AU  - Niemets, Liudmyla
AU  - Kićović, Dušan
AU  - Golijanin, Jelena
AU  - Gocić, Milena
AU  - Martić-Bursać, Nataša
AU  - Stričević, Ljiljana
AU  - Žiberna, Igor
AU  - Bačević, Nikola
AU  - Milevski, Ivica
AU  - Durlević, Uroš
AU  - Lukić, Tin
PY  - 2021
UR  - http://gery.gef.bg.ac.rs/handle/123456789/1331
AB  - The 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.
PB  - Basel : MDPI
T2  - Atmosphere
T1  - Long Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia
VL  - 12
IS  - 8
SP  - 964
DO  - 10.3390/atmos12080964
ER  - 

@article{
author = "Valjarević, Aleksandar and Morar, Cezar and Živković, Jelena and Niemets, Liudmyla and Kićović, Dušan and Golijanin, Jelena and Gocić, Milena and Martić-Bursać, Nataša and Stričević, Ljiljana and Žiberna, Igor and Bačević, Nikola and Milevski, Ivica and Durlević, Uroš and Lukić, Tin",
year = "2021",
abstract = "The 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.",
publisher = "Basel : MDPI",
journal = "Atmosphere",
title = "Long Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia",
volume = "12",
number = "8",
pages = "964",
doi = "10.3390/atmos12080964"
}

Valjarević, A., Morar, C., Živković, J., Niemets, L., Kićović, D., Golijanin, J., Gocić, M., Martić-Bursać, N., Stričević, L., Žiberna, I., Bačević, N., Milevski, I., Durlević, U.,& Lukić, T.. (2021). Long Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia. in Atmosphere
Basel : MDPI., 12(8), 964.
https://doi.org/10.3390/atmos12080964

Valjarević A, Morar C, Živković J, Niemets L, Kićović D, Golijanin J, Gocić M, Martić-Bursać N, Stričević L, Žiberna I, Bačević N, Milevski I, Durlević U, Lukić T. Long Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia. in Atmosphere. 2021;12(8):964.
doi:10.3390/atmos12080964 .

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, Tin, "Long Term Monitoring and Connection between Topography and Cloud Cover Distribution in Serbia" in Atmosphere, 12, no. 8 (2021):964,
https://doi.org/10.3390/atmos12080964 . .

TY  - JOUR
AU  - Milentijević, Nikola
AU  - Bačević, Nikola
AU  - Ristić, Dušan
AU  - Valjarević, Aleksandar
AU  - Pantelić, Milana
AU  - Kićović, Dušan
PY  - 2020
UR  - https://gery.gef.bg.ac.rs/handle/123456789/1042
AB  - Recent climate changes cause significant natural and socio-economic consequences. They represent one of the major environmental problems of the late 20th and early 21st centuries. Changes in temperature and precipitation play a significant role in understanding climate change issues. They include numerous extreme climatic events such as heat waves, droughts, forest fires and more. Looking at regional differences in temperature and precipitation regime change, Southern Europe, including the Republic of Serbia, occupies a special place. The Mačva district (3.272 km²) is almost four times as spacious as the Mačva area. The administrative-political division of the Mačva district is comprised of eight municipalities. The paper presents trends of two climate variables: mean annual air temperature and mean annual precipitation in the study area. In methodological sense, the main statistical procedure is the non-parametric Mann-Kendall (MK) test. Data from three available meteorological stations in the Mačva district (1949-2015) were used for the analysis. The presented results of the trends in air temperature indicate that there is a statistically significant positive trend in all-time series. In trends, precipitation amounts a statistically significant positive trend was observed in two time series, while in one there is no trend. The expressed trends, especially in the case of air temperatures, lead to the possibility of drought. Mačva district and Mačva have some agricultural importance in the Republic of Serbia. For these reasons, some adaptation to climate change is needed as arid conditions lead to fluctuations in agricultural yield.
PB  - Univerzitet u Prištini - Prirodno-matematički fakultet, Kosovska Mitrovica
T2  - The University Thought - Publication in Natural Sciences
T1  - Application of Mann-Kendal (MK) test in trend analysis of air temperature and precipitation: Case of Mačva district (Serbia)
VL  - 10
IS  - 1
SP  - 37
EP  - 43
DO  - 10.5937/univtho10-24774
UR  - https://hdl.handle.net/21.15107/rcub_gery_1042
ER  - 

@article{
author = "Milentijević, Nikola and Bačević, Nikola and Ristić, Dušan and Valjarević, Aleksandar and Pantelić, Milana and Kićović, Dušan",
year = "2020",
abstract = "Recent climate changes cause significant natural and socio-economic consequences. They represent one of the major environmental problems of the late 20th and early 21st centuries. Changes in temperature and precipitation play a significant role in understanding climate change issues. They include numerous extreme climatic events such as heat waves, droughts, forest fires and more. Looking at regional differences in temperature and precipitation regime change, Southern Europe, including the Republic of Serbia, occupies a special place. The Mačva district (3.272 km²) is almost four times as spacious as the Mačva area. The administrative-political division of the Mačva district is comprised of eight municipalities. The paper presents trends of two climate variables: mean annual air temperature and mean annual precipitation in the study area. In methodological sense, the main statistical procedure is the non-parametric Mann-Kendall (MK) test. Data from three available meteorological stations in the Mačva district (1949-2015) were used for the analysis. The presented results of the trends in air temperature indicate that there is a statistically significant positive trend in all-time series. In trends, precipitation amounts a statistically significant positive trend was observed in two time series, while in one there is no trend. The expressed trends, especially in the case of air temperatures, lead to the possibility of drought. Mačva district and Mačva have some agricultural importance in the Republic of Serbia. For these reasons, some adaptation to climate change is needed as arid conditions lead to fluctuations in agricultural yield.",
publisher = "Univerzitet u Prištini - Prirodno-matematički fakultet, Kosovska Mitrovica",
journal = "The University Thought - Publication in Natural Sciences",
title = "Application of Mann-Kendal (MK) test in trend analysis of air temperature and precipitation: Case of Mačva district (Serbia)",
volume = "10",
number = "1",
pages = "37-43",
doi = "10.5937/univtho10-24774",
url = "https://hdl.handle.net/21.15107/rcub_gery_1042"
}

Milentijević, N., Bačević, N., Ristić, D., Valjarević, A., Pantelić, M.,& Kićović, D.. (2020). Application of Mann-Kendal (MK) test in trend analysis of air temperature and precipitation: Case of Mačva district (Serbia). in The University Thought - Publication in Natural Sciences
Univerzitet u Prištini - Prirodno-matematički fakultet, Kosovska Mitrovica., 10(1), 37-43.
https://doi.org/10.5937/univtho10-24774
https://hdl.handle.net/21.15107/rcub_gery_1042

Milentijević N, Bačević N, Ristić D, Valjarević A, Pantelić M, Kićović D. Application of Mann-Kendal (MK) test in trend analysis of air temperature and precipitation: Case of Mačva district (Serbia). in The University Thought - Publication in Natural Sciences. 2020;10(1):37-43.
doi:10.5937/univtho10-24774
https://hdl.handle.net/21.15107/rcub_gery_1042 .

Milentijević, Nikola, Bačević, Nikola, Ristić, Dušan, Valjarević, Aleksandar, Pantelić, Milana, Kićović, Dušan, "Application of Mann-Kendal (MK) test in trend analysis of air temperature and precipitation: Case of Mačva district (Serbia)" in The University Thought - Publication in Natural Sciences, 10, no. 1 (2020):37-43,
https://doi.org/10.5937/univtho10-24774 .,
https://hdl.handle.net/21.15107/rcub_gery_1042 .

TY  - JOUR
AU  - Gavrilov, Milivoj B.
AU  - Marković, Slobodan B.
AU  - Janc, Natalija
AU  - Nikolić, Milena
AU  - Valjarević, Aleksandar
AU  - Komac, Blaz
AU  - Zorn, Matija
AU  - Punisić, Milan R.
AU  - Bačević, Nikola
PY  - 2018
UR  - https://gery.gef.bg.ac.rs/handle/123456789/953
AB  - The annual trends of surface mean monthly air temperature and monthly extreme temperatures were analyzed from ten meteorological stations in Kosovo. The data refer to observation periods between 1949 and 1999 for four stations, and observation periods between 1965 and 1999 for the remaining six stations. Trends were analyzed for nine time series. Positive trends were found in six series, and negative trends were found in three series. After an assessment of these trends using the Mann-Kendall test, positive trends were confirmed in four series, a negative trend was confirmed in one series, and in one series there was no trend, whereas trends were characterized as slightly positive in two time series and slightly negative in one series.
PB  - Ljubljana: Geografski inštitut Antona Melika ZRC SAZU
T2  - Acta Geographica Slovenica - Geografski zbornik
T1  - Assessing average annual air temperature trends using the Mann-Kendall test in Kosovo
VL  - 58
IS  - 1
SP  - 7
EP  - 25
DO  - 10.3986/AGS.1309
UR  - https://hdl.handle.net/21.15107/rcub_gery_953
ER  - 

@article{
author = "Gavrilov, Milivoj B. and Marković, Slobodan B. and Janc, Natalija and Nikolić, Milena and Valjarević, Aleksandar and Komac, Blaz and Zorn, Matija and Punisić, Milan R. and Bačević, Nikola",
year = "2018",
abstract = "The annual trends of surface mean monthly air temperature and monthly extreme temperatures were analyzed from ten meteorological stations in Kosovo. The data refer to observation periods between 1949 and 1999 for four stations, and observation periods between 1965 and 1999 for the remaining six stations. Trends were analyzed for nine time series. Positive trends were found in six series, and negative trends were found in three series. After an assessment of these trends using the Mann-Kendall test, positive trends were confirmed in four series, a negative trend was confirmed in one series, and in one series there was no trend, whereas trends were characterized as slightly positive in two time series and slightly negative in one series.",
publisher = "Ljubljana: Geografski inštitut Antona Melika ZRC SAZU",
journal = "Acta Geographica Slovenica - Geografski zbornik",
title = "Assessing average annual air temperature trends using the Mann-Kendall test in Kosovo",
volume = "58",
number = "1",
pages = "7-25",
doi = "10.3986/AGS.1309",
url = "https://hdl.handle.net/21.15107/rcub_gery_953"
}

Gavrilov, M. B., Marković, S. B., Janc, N., Nikolić, M., Valjarević, A., Komac, B., Zorn, M., Punisić, M. R.,& Bačević, N.. (2018). Assessing average annual air temperature trends using the Mann-Kendall test in Kosovo. in Acta Geographica Slovenica - Geografski zbornik
Ljubljana: Geografski inštitut Antona Melika ZRC SAZU., 58(1), 7-25.
https://doi.org/10.3986/AGS.1309
https://hdl.handle.net/21.15107/rcub_gery_953

Gavrilov MB, Marković SB, Janc N, Nikolić M, Valjarević A, Komac B, Zorn M, Punisić MR, Bačević N. Assessing average annual air temperature trends using the Mann-Kendall test in Kosovo. in Acta Geographica Slovenica - Geografski zbornik. 2018;58(1):7-25.
doi:10.3986/AGS.1309
https://hdl.handle.net/21.15107/rcub_gery_953 .

Gavrilov, Milivoj B., Marković, Slobodan B., Janc, Natalija, Nikolić, Milena, Valjarević, Aleksandar, Komac, Blaz, Zorn, Matija, Punisić, Milan R., Bačević, Nikola, "Assessing average annual air temperature trends using the Mann-Kendall test in Kosovo" in Acta Geographica Slovenica - Geografski zbornik, 58, no. 1 (2018):7-25,
https://doi.org/10.3986/AGS.1309 .,
https://hdl.handle.net/21.15107/rcub_gery_953 .