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Search Results: 1 - 10 of 629 matches for " Mustafi? Sanja "
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Spatial distribution of runoff in Tem tica river basin
Glasnik Srpskog Geografskog Dru?tva , 2006, DOI: 10.2298/gsgd0602045m
Abstract: The values of specific runoff are defined by model of multi factorial analyses combined with method of "grid" system. Elemental unit is presented by unit field of 0.5 x 0.5 km. Such multi regression model of high statistical significance enables analyses of specific runoff from many aspects. First aspect is establishing the amount and distribution of water for every altitude zone in total runoff creating. Second is presented in its altitude distribution in dependence of altitude existing of some lithologic-hydrologic complex; at the and from aspect from spatial regionalization it is possible to perceive water distribution within the river basin. By that we could realize water condition of some differential and contrast areas. Application of above mentioned methods as well as processing of each relevant parameter for studying these kinds of problems are carried out in GEOMEDIA program.
Certain aspects of anthropogenic influence on the intensity of the erosive process in Temstica river basin
Glasnik Srpskog Geografskog Dru?tva , 2007, DOI: 10.2298/gsgd0701023m
Abstract: Comparative analyses of data in the observing period from 1970 until 2003 has shown that there has been decrease of the erosive processes on the territory of Temstica river basin. It has been established that character and the intensity of the erosion depends not only on physical factors but on demographic and socio-economical changes in the investigated space.
Temperature changes in Serbia and worldwide according to satellite data
Lukovi? Jelena,Manojlovi? Predrag,MustafiSanja
Glasnik Srpskog Geografskog Dru?tva , 2009, DOI: 10.2298/gsgd0903177l
Abstract: In this paper the air temperature changes have been investigated on the base of satellite measurement, in the period from 1979 until 2006. The analysis has shown that there is no temperature amplification with altitude. Data for Serbia have shown negative trend of temperature in the last 20 years of the investigated period. Although it is not statistically significant, the sign is not in accordance with the increasing CO2 concentration. This may mean that the sign of satellite temperature doesn't support hypothesis about domination of anthropogenic greenhouse effects. .
Risk of artificial lake 'Zavoj' to processes of erosion: Methodological, knowing and protecting aspect
MustafiSanja,Kostadinov Stanimir,Manojlovi? Predrag
Glasnik Srpskog Geografskog Dru?tva , 2008, DOI: 10.2298/gsgd0801029m
Abstract: In this paper land erosion has been investigated from its temporal and spatial variability point of view. The aim of the application of contemporary soft wares and satellite observations was to create an adequate data base which allows faster and more adequate possibility for monitoring the intensity of erosive processes, as well as meaningful decision for application of different ways of anti erosive techniques of the most dangerous areas. Geomorphologic mapping of erosive processes using plane and satellite images has allowed rational planning of field observations and, at the other side very detailed establishing of the intensity of previous erosion. A new approach applied in this paper during data processing of all relevant parameters influencing erosion is based on using of software Geomedia 5.2 (Intergraph).
Mineralization of the surface waters in the Viso ica drainage basin: Supplement for the landscape-ecologic analysis
MustafiSanja,Manojlovi? Predrag,Milin?i? Miroljub
Glasnik Srpskog Geografskog Dru?tva , 2009, DOI: 10.2298/gsgd0904141m
Abstract: The drainage basin is spatially and functionally clearly defined and relevant hydrologic, geomorphologic and ecologic landscape totality. Therefore, it mostly represents basic geo-spatial unit of generation, monitoring, and studying numerous physical-geographical and geo-ecologic occurrences and processes. One of the most important components of geo-space, on the level of basin, is manifested through the state and quality of surface waters. So, the acceptance of systematic approach in studying mineralization of the surface waters would contribute to the deeper understanding of the process in complex systematic surroundings which drainage basin represents. The Viso ica Drainage Basin was chosen as proving ground of this kind of the research approach for several reasons. The highest specific runoff on the territory of Eastern Serbia, heterogeneous geologic structure of terrain, almost complete absence of the influence of the anthropogenic factor on the state of the environment, as well as the existence of water accumulation enabled perception of the values of dissolved mineral substances of surface waters as landscape-ecologic component of geo-space.
Temperature changes on the Earth and in Serbia and North Atlantic oscillation (NAO)
Lukovi? Jelena,Manojlovi? Predrag,MustafiSanja
Glasnik Srpskog Geografskog Dru?tva , 2010, DOI: 10.2298/gsgd1001123l
Abstract: In this paper connection between temperature changes and North Atlantic oscillation (NAO) has been investigated in the period from 1979 until 2006. Satellite temperature data from UAHMSU were investigated in relation to North Atlantic Oscillation index on the Earth, in Europe and in Serbia. Statistically insignificant correlation coefficient has been obtained for the area of Serbia. The analysis of periodicity of 2.8±0.5 year is in accordance with that one obtained by Landschieidt (2001). However, in order to give final conclusion regarding to climate change more parameters should be analyzed. .
Chemical and mechanical water erosion ratio in the Mlava River basin
Manojlovi? Predrag,MustafiSanja,Mladenovi? Ben
Glasnik Srpskog Geografskog Dru?tva , 2012, DOI: 10.2298/gsgd1201027m
Abstract: In the hydrological year of 2001/2002, the water samples in the Mlava Basin were analyzed. On its most downstream hydrometric profile, to the Bratinac profile, the water samples were taken every 5 days for TDS an d every day for concentration suspend sediment. It was found that during the analyzed period, the transport of chemically dissolved maters was 2 times higher than the silt deposit transport. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istra ivanje klimatskih promena na ivotnu sredinu: pra enje uticaja, adaptacija i ubla avanje, podprojekta br. 9: U estalost buji nih poplava, degradacija zemlji ta i voda kao posledica globalnih promena]
Application of remote sensing methods and GIS in erosive process investigations
MustafiSanja,Manojlovi? Predrag,Dragi?evi? Slavoljub
Journal of the Geographical Institute Jovan Cvijic, SASA , 2007, DOI: 10.2298/ijgi0757465m
Abstract: Modern geomorphologic investigations of condition and change of the intensity of erosive process should be based on application of remote sensing methods which are based on processing of aerial and satellite photographs. Using of these methods is very important because it enables good possibilities for realizing regional relations of the investigated phenomenon, as well as the estimate of spatial and temporal variability of all physical-geographical and anthropogenic factors influencing given process. Realizing process of land erosion, on the whole, is only possible by creating universal data base, as well as by using of appropriate software, more exactly by establishing uniform information system. Geographical information system, as the most effective one, the most complex and the most integral system of information about the space enables unification as well as analytical and synthetically processing of all data.
Seasonal variability of Crvena river water mineralization
Manojlovi? Predrag,Nikoli? Milena,MustafiSanja,Lukovi? Jelena
Glasnik Srpskog Geografskog Dru?tva , 2010, DOI: 10.2298/gsgd1004009m
Abstract: The mineralization of water and its content in Crvena River so far have not been studied. Water sampling was conducted from April 2008 - May 2009. Total mineralization is relatively low, which is consistent with the dominant lithological structure (Permian red sandstone). Dry residue contains Ca2+ ion, with the increased participation of SiO2. During the observational period it is clearly expressed seasonal effect. It is reflected not in the direct but the indirect impact. Based on the ratio of individual ions a model is determined for estimation of water flow at the confluence of the Crvena River in Nisava River. It could be applied to other drainage basins that have not been studied so far.
The silt carrying in Jerma river basin
Manojlovi? Predrag A.,MustafiSanja,Dragi?evi? Slavoljub
Glasnik Srpskog Geografskog Dru?tva , 2003, DOI: 10.2298/gsgd0302003m
Abstract: The silt carrying in the upper part of Jerma river basin in amount of 82.3 t/km/year is relatively high, considering the situation in all Serbia. The specific silt carrying in the upper part of Crnica river basin is 23.9 t/km/year (Manojlovi P.), while it is even lower in the basin of Crni Timok river (3.5 t/km/year; Manojlovi P, Gavrilovi Lj. 1991.). In the Kolubara river basin, the specific mechanical water erosion is between 4.6 t/km/year (Gradac) and 73.2 t/km/year in Tamnava basin (Dragicevic S. 2002). Greater erosion in the upper part of Jerma river basin is result of great part of metamorphic stones that intensively disintegrates and significant anthropogenic influence in Znepolje. The great slopes at the left side of the basin, under the Ruj mountain, should be considered, too. That doesn't mean that the erosion is strong, because, for example in the basin of Beli Timok, between Knja evac and Zaje ar, it is 186 t/km/year. Following regression, base on flow and silt concentration values can calculate the silt carrying very precisely: t/day=6251+26875 - C+1058 - Q Based on beta coefficients (0.73 for silt and 0.31 for flow) it could be concluded that concentration of silt has greater influence on erosion, than flow. More interesting is the influence of seasonal factor on the carrying of suspended silt. Months with the highest amount of carried suspended material are March, April and May. During these months 50.5 % of average yearly value is evacuated from a basin. Similar excessivity has been noticed in the other basins (Dragicevic S. 2002), only in other months.
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