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Univerzitet u Beogradu

1. Savanović, Rajko M., 1980-. Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema.

Degree: Građevinski fakultet, 2018, Univerzitet u Beogradu

Geodezija - Referentne geodetske mreže / Geodesy - Geodetic reference networks

Doktorska disertacija posvećena je formulisanju odgovarajućeg modela transformacije prostornih podataka između globalnog i lokalnog geodetskog referentnog sistema na području Republike Srbije, pri čemu se u najvećoj meri obuhvataju distorzije i deformacije u realizaciji jednog ili oba sistema. U cilju istraživanja novih načina modelovanja distorzija geodetske mreže određeni su globalni transformacioni parametri primenom međudatumske Helmertove T7D transformacije sličnosti i FIT transformacijom zasnovanoj na modelu direktne projekcije. Distorzije su modelovane primenom sledećih modela: Briggs-og MCS modela, LSC modela sa korelacionom dužinom od 30 km, TIN modela sa težinom 1 e i i p  d za eksponent e 1.00 i za eksponent e  2.00 . Međusobnim poređenjem statističkih pokazatelja utvrđeno je da se najbolji rezultati modelovanja distorzija u tačkama geodetske mreže dobijaju primenom kolokacije po metodi najmanjih kvadrata, sa korelacionom dužinom od 30 km i to nakon FIT transformacije, tj. primenom FIT+LSC30 modela. Za vrednosti standardne devijacije razlike reziduala po koordinatnim osama dobija se 0.044m i 0.041m, dE dN     dok je standardna devijacija vektora horizontalnog položaja 0.043m dp   .

Advisors/Committee Members: Blagojević, Dragan, 1959-.

Subjects/Keywords: geodetic reference system; geodetic datum; least squares method; Helmert transformation; direct projection; distortion modeling; residuals prediction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Savanović, Rajko M., 1. (2018). Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:17649/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Savanović, Rajko M., 1980-. “Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema.” 2018. Thesis, Univerzitet u Beogradu. Accessed February 18, 2020. https://fedorabg.bg.ac.rs/fedora/get/o:17649/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Savanović, Rajko M., 1980-. “Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema.” 2018. Web. 18 Feb 2020.

Vancouver:

Savanović, Rajko M. 1. Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema. [Internet] [Thesis]. Univerzitet u Beogradu; 2018. [cited 2020 Feb 18]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:17649/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Savanović, Rajko M. 1. Analiza mogućnosti definisanja i realizacije državnog prostornog geodetskog referentnog sistema na bazi globalnog terestričkog referentnog sistema. [Thesis]. Univerzitet u Beogradu; 2018. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:17649/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Araya, Yikalo Hayelom. Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars.

Degree: PhD, Geography, 2015, York University

Wildfire is one of the main natural disturbances that consume a substantial amount of forest cover, influencing and reshaping the landscape mosaic of boreal forests. Wildfires do not burn the entire landscape; they rather create a complex mosaic of post-fire landscape structure with different degrees of burn severity. The resulting spatial mosaic includes fully burned, partially burned, and unburned areas. Even though the most visible components of a fire disturbed landscape are the completely burned areas, a considerable number of residual patches of various size, shape, and composition are retained following a fire. The residual patches refer to remnants of the pre-fire forest ecosystem that left completely unaltered within the fire footprint. Improved understanding of the patterns and characteristics of wildfire residuals provides insights for investigating the effects of fire disturbances, emulating forest disturbances in harvesting operations, and improving forest management planning. Knowledge about the post-fire residuals relies on how well we measure the patterns and characteristics of post-fire residuals, determine the factors that explain their occurrence and patterns, and what consistent measurement framework we use to understand the patterns and predict their likely occurrence. In this study, the patterns and characteristics of post-fire residuals was initially examined based on eleven boreal wildfire events within northwestern Ontario; each ignited by lightning and never suppressed. The wildfire events were occurred in ecoregion 2W during the fire seasons of 2002 and 2003. In order to design a consistent and repeatable method for measuring the patterns of residuals, an integrate approach has been designed. This involves assessing the spatial patterns where the composition, configuration, and fragmentation of residual patches were assessed based on selected spatial metrics; examining the importance of predictor variables that explain residuals and their marginal effects on residual patch occurrence using Random Forest (RF) ensemble method; and developing a spatially explicit predictive model using the RF method where the combined effects of the variables were examined. Finally, the three approaches are applied and evaluated using a recent and independent data from the extensive RED084 wildfire event that occurred in 2011 within the adjacent ecoregion (3S). The effects of analytical scale (i.e., spatial resolution) on characterizing the spatial patterns, determining the relative variable importance, and predicted probabilities of residual patches are assessed. The results show that the composition and configuration of wildfire residuals vary as a function of measurement, spatial resolutions, and fire event sizes, suggesting the variation in fire intensity and severity across the fire events. The patterns of wildfire residuals are also sensitive to changing scale, but the responses of the spatial metrics to changing spatial resolutions are grouped into three categories: monotonic change and… Advisors/Committee Members: Remmel, Tarmo (advisor).

Subjects/Keywords: Geography; Geographic information science; Forestry; Fire disturbances; Wildfire residuals; Null-residual patches; Fire footprint; Scale; Random forest; Spatial metrics; Predictive model; Spatial prediction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Araya, Y. H. (2015). Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars. (Doctoral Dissertation). York University. Retrieved from http://hdl.handle.net/10315/29912

Chicago Manual of Style (16th Edition):

Araya, Yikalo Hayelom. “Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars.” 2015. Doctoral Dissertation, York University. Accessed February 18, 2020. http://hdl.handle.net/10315/29912.

MLA Handbook (7th Edition):

Araya, Yikalo Hayelom. “Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars.” 2015. Web. 18 Feb 2020.

Vancouver:

Araya YH. Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars. [Internet] [Doctoral dissertation]. York University; 2015. [cited 2020 Feb 18]. Available from: http://hdl.handle.net/10315/29912.

Council of Science Editors:

Araya YH. Characterizing the Spatial Patterns and Spatially Explicit Probabilities of Post-Fire Vegetation residual patches in Boreal Wildfire Scars. [Doctoral Dissertation]. York University; 2015. Available from: http://hdl.handle.net/10315/29912

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