Beoslide - Belgrade landslide inventory

After huge number of landslide events in Serbia during 2006 (some of them with catastrophic damage on households), Belgrade City Government has initiated defining a strategy for landslide damage prevention. City Government and Assembly adopted suggested proposal to finance new landslide inventory, since the old inventory has been made 30 years ago. By project proposal, task was to create modern landslide inventory in a GIS oriented software for Belgrade General Plan area (approx. 360 km2 with more than 1,2 mil. population). All noted landslides were categorized by level of hazard and risk of their activation. This information system and landslide database should enable continuous monitoring of the landslide processes and possibility of early warning system development. Such information should be at disposal to: planners, investors and builders. In others words, it should enable rational landslide risk management. Inventory should also enable possibility to define priorities objectively, which would ease the management effort of the local authorities, when preventing and stabilizing active landslides or protecting affected structures. Basic goals for creating a new inventory were: to archive all documentation of Belgrade landslides in one place and to make data publically available; to collect data in digital form (database) in order to have them continuously updated during time; to make a database searchable by various parameters which are crucial for city governance (by municipality location, different urban zones, infrastructure locations etc.); to generate full .pdf or .doc format reports with quality data about inventoried landslides (with included maps, diagrams, laboratory data, core sampling etc); to provide local decision makers with information on priorities in landslide investigations for civil engineer projects or for landslide prevention and remediation, in different stages of project design. Landslide inventory was funded by Belgrade Land Development Public Agency and it was developed by University of Belgrade, Faculty of Mining and Geology science/research team with support of numerous external associates, experts in different geological engineering disciplines. During two and a half years of developing and field investigations the following has been done: collecting, systematization, critical analysis and reinterpretation of available landslide data; photogeological analysis of terrain; additional field investigations engineering-geological mapping and reambulation; creation of land stability maps; landslide hazard and risk assessment; developing and programming information system and database for inventory; inputting collected data into digital inventory and alpha-testing of developed application. Digital landslide inventory with database and information system for Belgrade General Plan area was made during 2008-2010 yr. 1150 individual landslides were registered and for each of them the following information has been added to the database: location, geological conditions, existing exploration works and their results and works on prevention and stabilization. Beside geological and engineering-geological data, various datasets important for decision makers and City Government branches have been inputted in the database. These included: 89 sheets of Belgrade topographic maps (scale 1:5000, in raster .jpg and .tif format); orthophoto images of Belgrade with 30 cm resolution; Complex Geological map of Belgrade (digitalized from sheets in 1:10000 scale); 89 scanned maps from old landslide inventory (scale 1:5000, in raster .jpg and .tif format); photogeological map for comparing data in time series. Final product was land stability map with generated level of landslide hazard and risk. Inventory was created as tool/sub-shell inside ArcGIS© software, with localization on Serbian language (Latin script)

Using ArcGIS for Landslide Umka 3D Visualisation

The recent developments in earth sciences software are mostly related to the extension allowing graphical representations of volumes and geological bodies. In this paper, we present a tool for 3D visualization of landslide body using only ArcGIS© software and its 3rd party extensions. The model was built using existing geological surveys, DEMs, borehole logs and site investigation data. The case study chosen to illustrate the method is the Umka landslide (Belgrade, Serbia), an area with relatively simple geology, but with deep seated landslide and with block-translational sliding mechanism

Katastar klizišta Beograda

Za prostor Generalnog plana Beograda urađen je Katastar klizišta (2008-2010.) sa bazom podataka i informacionim sistemom (IS). Registrovano je 1155 klizišta i za svako su u bazu uneti podaci o: lokaciji, geol. uslovima, istražnim i radovima na prevenciji i sanaciji. Klizišta su kategorisana po stepenu hazarda i rizika od aktiviranja. IS i baza obezbeđuju neophodne informacije planerima, investitorima i graditelјima u cilјu kontinualnog praćenja i upravlјanja rizikom od klizišta

Glossary of Geological Terms and Concepts of Geological Information System of Serbia - geolISSTerm (ELEXIS)

Rečnik geoloških termina i pojmova geološkog informacionog sistema Srbije. GeolISSTerm - Dictionary of geological terms and terms used in Geological information system of Serbia (GeolISS)

GeologyTerm (ELEXIS)

Podskup GeolISSTerm delimično poravnat sa GeoSciML. Subsets of GeolISSTerm - Dictionary of geological terms and terms used in Geological information system of Serbia (GeolISS) partially aligned with GeoSciML

Geological Units Classification of Multispectral Images by Using Support Vector Machines

Quantitative techniques for spatial prediction and classification in geological survey are developing rapidly. The recent applications of machine learning techniques confirm possibilities of their application in this field of research. The paper introduces Support Vector Machines, a method derived from recent achievements in the statistical learning theory, in classification of geological units based on the source of the Landsat multispectral images. The initial experiments suggest the usefulness of the proposed classification approach

Tracking of Slow Moving Landslide by Photogrammetric Data - Case Study

Aerial photography is a very powerful tool for monitoring of slow moving landslides over periods lasting for decades. They offer a synoptic view of landslide morphology and activity changing at different time intervals.This case study focused on Umka landslide. The availability of multi-year aerial photo and orthophotos coverage helped to assess morphological changes, which occurred in the last forty years. The morphological changes have been revealed from aerial images from 1970–2007 period and orthophotos that were taken in 2001, 2005 and 2010. Comparing archived results with field investigations we found that the south-western part of landslide is most active part, with surface moving greater than 20 m. In this paper we presented an example where aerial photographs and digital photogrammetric techniques were used for tracking and modelling the slow moving landslide displacement of Umka landslide (Belgrade, Serbia).Proceedings of the 11th International and 2nd American Symposium on Landslides and Engineered Slopes, Banff, Canada, 3-8 June, 201

Low-temperature evolution of the Serbo-Macedonian massif (SE Serbia): evidence from Ap and Zr fission-track analysis

<p>Presented at the Thermo2014 – 14th International conference on Thermochronology, Chamonix, France<br><br>DOI: 10.13140/2.1.1220.4800 </p

Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)

The Serbo-Macedonian Massif (SMM) represents a composite crystalline belt within the Eastern European Alpine orogen, outcropping from the Pannonian basin in the north to the Aegean Sea in the south. The central parts of this massif (south-eastern Serbia) consist of the medium- to high-grade Lower Complex and the low-grade Vlasina Unit. Outcrop- and micro-scale ductile structures in this area document three major stages of ductile deformation. The earliest stage D1 is related to isoclinal folding, commonly preserved as up to decimetre-scale quartz–feldspar rootless fold hinges. D2 is associated with general south-eastward tectonic transport and refolding of earlier structures into recumbent metre- to kilometre-scale tight to isoclinal folds. Stages D1 and D2 could not be temporally separated and probably took place in close sequence. The age of these two ductile deformation stages was constrained to the Variscan orogeny based on indirect geological evidence (i.e. ca. 408-ca. 328). During this period, the SMM was involved in a transpressional amalgamation of the western and eastern parts of the Galatian super-terrane and subsequent collision with Laurussia. Outcrop-scale evidence of the final stage D3 is limited to spaced and crenulation cleavage, which are probably related to formation of large-scale open upright folds as reported previously. 40Ar/39Ar thermochronology was applied on hornblende, muscovite, and biotite samples in order to constrain the age of tectonothermal events and activity along major shear zones. These 40Ar/39Ar data reveal three major cooling episodes affecting the central SMM. Cooling below greenschist facies conditions in the western part of the Vlasina Unit took place in a post-orogenic setting (extensional or transtensional) in the early Permian (284 ± 1 Ma). The age of activity along the top-to-the-west shear zone formed within the orthogneiss in the Božica area of the Vlasina Unit was constrained to Middle Triassic (246 ± 1 Ma). This age coincides with widespread extension related to the opening of the Mesozoic Tethys. The greenschist facies retrogression in the Lower Complex probably occurred in the Early Jurassic (195 ± 1 Ma), and it was related to the thermal processes in the overriding plate above the subducting slab of the Mesozoic Tethys Ocean