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Search Results: 1 - 10 of 727 matches for " Manojlovi? Predrag "
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The methodological aspect investigation of intensity of chemical erosion
ManojloviPredrag A.
Glasnik Srpskog Geografskog Dru?tva , 2002, DOI: 10.2298/gsgd0202035m
Abstract: Researching of intensity of chemical erosion nowadays includes different methods, which can be divided into three groups: laboratory experiments, terrain experiments and empirical methods. This work analyses some methods and results that are obtained by their use.
Chemical erosion intensity in the Ni ava catchments
ManojloviPredrag A.
Glasnik Srpskog Geografskog Dru?tva , 2002, DOI: 10.2298/gsgd0201003m
Abstract: The Ni ava catchment comprehends the area of 4068 km2. There are differences in erosion intensity due to different physical-geographical characteristics of that area. Mechanical water erosion in the Ni ava catchment is 302,4 m3/km2/yr and chemical erosion is 67,2 t/km2/yr. Space differences are large (47,1-115.5 t/km2/yr) and are mostly determined by hydrological and lithological characteristics of that area.
The influence of seasonal factor on chemical dissolving of limestone variability in Svrlji ka valley
ManojloviPredrag,Damnjanovi?-Raki? Milica
Glasnik Srpskog Geografskog Dru?tva , 2006, DOI: 10.2298/gsgd0602029m
Abstract: How big is the influence of climatic factor on the intensity of rocks dissolving (limestone) in Serbia? Previous investigations of rivers water chemistry changes have shown it insignificance. This investigation shows significant collective influence of climatic elements contained in "seasonal factor".
Temperature changes in Serbia and worldwide according to satellite data
Lukovi? Jelena,ManojloviPredrag,Mustafi? Sanja
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
Mustafi? Sanja,Kostadinov Stanimir,ManojloviPredrag
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
Mustafi? Sanja,ManojloviPredrag,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.
Methodological spot of establishing silt deposit concentration in Serbian rivers
Dragi?evi? Slavoljub,ManojloviPredrag,Nikoli? Jugoslav
Glasnik Srpskog Geografskog Dru?tva , 2007, DOI: 10.2298/gsgd0701015d
Abstract: Recent methodology of sampling and establishing silt deposit concentration in Serbian rivers is associated to numerous deficiencies. Daily concentrations of this type of river deposit on the most of the hydrological gauges were obtained on the base of only one measurement, which takes into consideration the matter of representative ness of those samples. Taking the samples of deposit in one point on the profile is little bit problematic because of dispersion of the obtained results. Very important matter is the question of choice of the sampling location. This analyses of data may lead to serious spots in calculating total carried deposit. From the above mentioned reasons, we decided to take precise measurements of silt deposit concentration as well as to establish methodological spots of measurements. The results of these measurements are analyzed and presented in this paper.
Temperature changes on the Earth and in Serbia and North Atlantic oscillation (NAO)
Lukovi? Jelena,ManojloviPredrag,Mustafi? Sanja
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
ManojloviPredrag,Mustafi? Sanja,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
Mustafi? Sanja,ManojloviPredrag,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.
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