Ioan Rus

Babeş-Bolyai University | UBB · departament of geography

"The Evolution of Cluj Fortress from Extramuros Area and the Imprint of the Geosite in the Geographical Landscape of Cluj-Napoca City. Cluj Fortress was built by the military garrison of the Habsburg Empire to have a defensive role in tragic periods. The site of its location was chosen possibly due to morphology, the presence of landforms developed...

This study aims to develop and adapt new methodologies for the foundation of a new hydrological system, essential component of a much-needed decision support spatial system for the Firiza basin and reservoir (North-West of Romania) and other areas situated upstream of a densely populated area. In order to utilize semi-distributed models in basins o...

In recent years, the accelerated development of the remote sensing domain and the improvement of the resolution and frequency of satellite images allowed the increase in the accuracy of the evaluation of morphometric characteristics and the spatiotemporal distribution of pit lakes, including the small ones. Our study quantitatively analyzes small-s...

Floods are the most frequent natural hazard globally and incidences have been increasing in recent years as a result of human activity and global warming, making significant impacts on people’s livelihoods and wider socio-economic activities. In terms of the management of the environment and water resources, precise identification is required of ar...

Recently, due to more than a decade of magnetic measurements obtained from LEO (low Earth orbit) satellites, more robust global geomagnetic field models have been produced. Generally, these models are based on data selected on specific criteria, as night-side and quiet-time measurements to get the best possible description of the internal contribut...

The UAV technique, and more recently UAS systems, play an ever important role in various domains of research and practical activities. The increase in number of publications focusing on their applicability is spectacular. The objective of this study is to highlight the efficiency of an integrated command-overflight-taking photo system, in an area w...

In the delimitation of flood-prone areas, particularly in areas that are difficult to access using traditional flight equipment, the most critical problem is the generation of a high-quality DEM of the major and minor riverbed, in order to obtain several hydraulic parameters (e.g., the surface of the drainage section, average water velocity) with e...

Old geological maps are extremely important sources of information about the state of geological knowledge of a specific period. Using GIS techniques, the old geological data and concepts can be compared and analyzed together with modern ones. Thus, the aim of this work is to present some old Transylvanian geological maps from the second half of th...

Anthropogenic intervention along the Danube floodplain has occurred in various degrees since ancient times. Early in this history, small and localized changes were linked to fishing as floodplain lakes and channels constituted a permanent and trusted source of fish. Large-scale, intense changes occurred primarily during the communist period when mo...

The intensification of extreme events, due to global climatic changes and irrational land use, has materialised in the change of pluvial regime and high precipitation amounts. Thus, the study of flash floods, as a result of the rain-flow process, has an important place in applied hydrologic research. Floods represent a hazard with high frequency an...

Lately, the role of computerization has increased thus to the existence of software and its use has become indispensable as a result of its applicability to all Earth sciences. The Niraj minor and major riverbeds present a varied morphology and instability in some sections; due to rainfall intensity and flashfloods growing frequency the potential e...

The deep-seated landslides (glimee) have played an important role in the evolution of the Transylvanian landscape, causing the reshaping of the slopes. Previous research indicates that the triggering moment of this landslide began during the Late Glacial Period or even in the Eemian Period. Although contemporary geomorphologic processes affect the...

The modem cadastre was introduced in Austrian Empire by Emperor I at the beginning of the XIX century, using the Milanese model. Based on topographic surveys and triangulation networks, the Austrian cadastre model have evolved continuously during the time by incorporating new concepts and technologies. The model was adopted by other European countr...

Starting with 1975, the North-West part of the Moldavia Principality was occupied by the Habsburg Monarchy and become known as Duchy of Bukovina. During the 143 years of Austrian rule (1775 - 1918), this territory was the subject of several topographic and cadastral surveys. The paper will focus on the cadastral maps produced under the Stabile cada...

Old cartographic documents represent a valuable resource in reconstructing the natural and built environment evolution. In order to integrate such maps with recent geospatial datasets, in GIS environment, some preparatory actions need to be done. This includes scanning, color enhancement, georeferencing and reprojection. From our experience, when i...

This study brings forward two important aspects concerning landslides that have an important role in the contemporary morphogenesis of the hilly and mountainous areas in Romania. The first topic refers to the recurrence of the landslides reactivation. The existing works proved that the starting point and the recurrence of landslides are mainly conn...

The geomorphologic processes are usually limited as area of occurrence. They can be localized punctually, but the transformations they induce are irreversible and can produce very important environmental changes such as landscape transformations, loss of human lives, destructions of elements of the cultural heritage or taking agricultural lands out...

Islands along the Danube valley reflect directly hydrological changes in liquid and solid discharge, that occurred in historical time. Our investigation is based on analysis of several maps divided into three periods: the end of the nineteenth century, mid twentieth century and the beginning of XXI century. Maps made after 1880 reflects a river sys...

Before the 1918 Union, the Romanian territories were subject of several dominations, for which reason the cartographic data base for each Romanian province was different from an area to another. Starting from the second half of the 19th century, Valachia, Moldavia and Dobrogea (Dacia Pontica or Scitia Minor) field mapping was made, implicitly carto...

Development of urban centers throughout history can be reconstructed using graphical documents (photos, prints, etc.), but mainly based on cartographical documents that spatially locate the informations. Starting from this premise (in the broader context of reconsidering the cartographic heritage of Central and South-East Europe), the present study...

Key words: man – as morphological agent, bad-lands, excavation morphology, accumulation morphology, hydropower facilities, anthropogenic landform map, upper and middle sectors of Strei basin. Modifications anthropiques sur le relief dans le bassin supérieur et moyen du Strei. Les interventions anthropiques sur les formes de relief sont variées et,...

Applied Geomorphology in the Residential Area of Cluj-The last decades were characterized by an increased interest in applied geomorphology mostly due to a rapid growth of the urban areas and to the problems they imply. In this respect we aim to determine the landslide susceptibility of the slopes connected to inhabited areas in the Cluj-Napoca. Th...

L'étude y présent se penche sur l'analyse des variables qui contribuent à l'instabilité des versants. Les facteurs pris en considération sont soit naturels (la lithologie, les précipitations, la pente, la densité du drainage, l'épaisseur de la fragmentation et l'hypsométrie), soit induits par des activités anthropiques (l'utilisation des sols, arti...