Marcel Török-Oance | West University of Timisoara (original) (raw)
Papers by Marcel Török-Oance
Religions, Jun 24, 2024
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
<p>Snow avalanches are a denudational process and natural hazard that can severely ... more <p>Snow avalanches are a denudational process and natural hazard that can severely damage tourist infrastructure, roads and forests and lead to injury and loss of life. Political and socio-economic changes in mountain landscapes also affect avalanche activity. This study was carried out in the F&#259;g&#259;ra&#351; Mountains, a representative mountain unit in the Southern-Romanian Carpathians, which is dominated by glacial and periglacial relief, high altitudes, high snow cover thickness, snow persistence of about 8-9 months per year and high occurrence of avalanche hazards.</p><p>Our analysis of the location, spatial extent and number of avalanche events was based on extensive documentation using old photographs, maps, papers and statistics from Mountain Rescuer Public Services databases. We also used dendrogeomorphological data with a 130-year chronology, from which we extracted the frequency, magnitude and spatial extent, satellite images and event simulations using the RAMMS avalanche module in the most affected area of the Fagaras Mountains, the Balea-Capra glacier sector. The study data were collected between 1880 and 2020, in three different periods, each with political and socio-economic peculiarities: the Romanian Kingdom Period (1880-1945), the Communist Period (1946-1989) and the Post-Communist Period (1990-present). In the first period, the tourist infrastructure was modest with no tourist traffic and the avalanche danger was not recognized. Only three avalanche events with human casualties were recorded. In the communist period 23 avalanche events were recorded. In the post-communist period, 75 avalanche events were recorded. Avalanche activity has strongly interfered with the emergence of new elements of tourist infrastructure such as huts, alpine refuges and the Transf&#259;g&#259;r&#259;&#537;an highway but also with the increasing exposure of tourists especially in the last 20 years. This is why the F&#259;g&#259;ra&#351; Mountains are a real avalanche hot spot in the Romanian Carpathians, accounting for 51.2% of fatalities and 57.4% of injuries/burials.</p><p>Studies carried out in the Romanian Carpathians have shown that climate warming is more evident between 1,000 and 1,500 m than at higher altitudes where most avalanches have been recorded. In this context, it is difficult to determine that the frequency and spatial extent of avalanches is determined by global change.</p><p>&#160;</p>
DAAAM Proceedings, 2011
Electrical Resistivity Tomography (ERT) investigations were carried out on various periglacial la... more Electrical Resistivity Tomography (ERT) investigations were carried out on various periglacial landforms in the periglacial belt from Southern Carpathians. Geo-electrical soundings reveal the existence of permafrost in rock glaciers from Retezat Mountains, the depth of active layer, typical internal structure of periglacial deposits and the freezing regime of the sediments inside earth hummocks. The application of ERT investigations proves to be a useful geophysical method to detect the contrast between unfrozen sediments and ground ice from periglacial environments subsurface.
Amphibia-Reptilia
The common toad (Bufo bufo) is a widespread species in Europe, with accidental occurrence in cave... more The common toad (Bufo bufo) is a widespread species in Europe, with accidental occurrence in caves. This study reports the first case of breeding of B. bufo in a natural cave in the Carpathian Mountains. The breeding activity was observed at the end of May and the beginning of June. We identified pairs of common toads in axillary amplexus, egg strings and tadpoles up to a distance of 97 m inside the cave. We hypothesized that there is an active selection of some cave sites as breeding habitat and that the egg deposition is not randomly distributed inside the cave. In 25 sample points, we recorded ten cave environmental features and we assessed the relationship between egg strings presence and environmental features by performing a bias reduction in binomial-response generalized linear model. The results revealed that the strongest ecological factor determining the selection of breeding areas inside the cave was water flow velocity. The presence of light, although an important enviro...
Annales d'Université "Valahia" Târgovişte. Section d'Archéologie et d'Histoire, 2010
* Department of History, West University of Timisoara, Bd. V. Pârvan, No. 2-4, Timişoara, Timiş C... more * Department of History, West University of Timisoara, Bd. V. Pârvan, No. 2-4, Timişoara, Timiş County, Romania; dmicle@litere.uvt.ro, liviumaruia@yahoo.com, adriancintar@gmail.com ** Department of Geography, West University of Timisoara, Bd. V. Pârvan, No. 2-4, ...
The present paper is dedicated to the presentation of the ski potential of one of the most famous... more The present paper is dedicated to the presentation of the ski potential of one of the most famous ski domain in the Southern Carpathians-the Straja ski area. It is located in the southeastern part of the Retezat-Godeanu range, on the northern slope of the Vâlcan Mountains. Straja ski area is endowed with a relentless tourist flow drawn by the scenic beauty of the winter landscape, by its specific amenities and facilities and by the considerable low prices of cable transportation and accommodation. The present analysis starts with a quantitative evaluation of the terrain factors by creating the hypsometric, slope and aspect models but also of the climatic variables. It is followed by an account of its cable transportation facilities, Straja having 7 cable transportation lines, serving 6 ski trails, each different in size, vertical drop, surface, degree of difficulty, carrying capacity and some other services they offer such as night skiing. Furthermore we have also presented the cabl...
Hrvatski geografski glasnik/Croatian Geographical Bulletin, 2009
This paper deals with some human geomorphological aspects concerning the impact in the alpine are... more This paper deals with some human geomorphological aspects concerning the impact in the alpine area of the Southern Carpathians (Transylvanian Alps). After fi eld investigations and taking into account the major effects of road building, military and mining activities, pasture and tourism activities in the geomorphological landscape we have the possibilities to present a distinct image of some relevant detailed situations. In our opinion the building of roads in the alpine area is by far the most dangerous way of intervention in the geomorphological landscape of the alpine area of the Southern Carpathians. The construction of these roads has altered the profi le of the slope and new scarps have appeared. This situation associated with the vibrations induced by the traffi c favours frost weathering, rock falling and rolling, coupled with the emergence of specifi c deposits and landforms (talus cones and scree) and, of course, with vertical and gully erosion, which is very typical of the area of soft rocks and soils.
Geographia Polonica, 2016
Snow avalanches are a common geomorphic process and natural hazard in the Southern Carpathians (R... more Snow avalanches are a common geomorphic process and natural hazard in the Southern Carpathians (Romanian Carpathians). The spatial distribution of avalanches is controlled by topographical factors, meteorological variables and human factors. This study examines the occurrence of avalanches in two glacial areas in the Făgăraş massif, Bâlea (on the northern slope) and Capra (on the southern slope). During the period from 1963 to 2015 a total of 27 serious avalanche accidents were recorded in the months November-June in the Făgăraş massif resulting in 76 fatalities and 50 burials/injuries. From these avalanches, we examined five major avalanche accidents: the avalanche of June, 1974 which caused 6 fatalities and 8 burials/injuries; the avalanche of April 17, 1977 which caused 23 fatalities; the avalanche of December 23, 1988 which caused 3 fatalities; the avalanche of December 28, 2002 which caused 4 fatalities and the avalanche of February 20, 2010 which caused one fatality and 2 burials/injuries. Our results indicate a good correlation between some topographical factors. On the other hand, an increase in snowfall and snowstorms in particular are factors responsible for one avalanche event; early snowfall and a sudden increase in temperature are factors responsible for two avalanche events and snowfall and a sudden increase in temperature are factors responsible for one avalanche event. Using the weather scenarios we found high snowstorm frequency in one case, early-season weak layers of faceted crystals and depth hoar in two cases and well above-average total snowfall for one case.
Lakes Reservoirs and Ponds, Dec 1, 2010
The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situa... more The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situated in Timiş County and concentrating incontestable eco-fauna treasures represented by a number of about 167 bird species, which have been identified within it by ornithologists during over 7 decennia of observations. This reserve is a true "oasis" providing favorable conditions for the sojourning and the nesting of certain rare species of aquatic migrating birds that go through the migrational corridor situated in the west of Romania. Unfortunately this reserve is in danger as the anthropic impact on it is a strong one, which has triggered a deterioration of the habitats, an unfavorable impact on the birds' food, the eutrophisation of the water and the clogging of the swamp, as well as the disappearance of the wet areas.
Area
ABSTRACT
Annals, 2009
The archaeological site Cornesti “Iarcuri” is the largest earth fortification in Romania, made ou... more The archaeological site Cornesti “Iarcuri” is the largest earth fortification in Romania, made out of four concentric compounds, spreading over 1780 hectares. It is known since 1700, but it had only a few small attempts of systematic research, the fortress ...
Forum geografic, 2011
The Romanian Banat is endowed with an important mountain area composed of the Banatului Mountains... more The Romanian Banat is endowed with an important mountain area composed of the Banatului Mountains and the northwestern part of the Retezeat-Godeanu Range, i.e. Ţarcu-Muntele Mic. The purpose of our paper is to make an account of the features of the two important ski areas within this mountain area: Ţarcu-Muntele Mic and Semenic. Their structure evolved over time according to the local and regional interest, but also due to more recent activities of the Romanian investors. Our research concluded that both ski domains have a great natural potential to sustain winter-sports and to further develop what today are two very small resorts. They have a low capability of attraction due to the small capacity of the pistes and to the fact that each resort has only two ski-lifts. In both cases the access is rather limited and as far as accommodation is concerned in both cases it is disproportional in relation with the provisioned capacity of the ski pistes. Having these aspects in view, we conclude that these resorts do not represent as yet a major attraction, especially due to the fact that there are undercapitalized and underdeveloped for the raising demand of the regional market for winter-sports. On the other hand in both cases projects have already been blueprinted by the aforementioned investors which are waiting to be undertaken for development.
The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situa... more The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situated in Timiş County and concentrating incontestable eco-fauna treasures represented by a number of about 167 bird species, which have been identified within it by ornithologists during over 7 decennia of observations. This reserve is a true “oasis ” providing favorable conditions for the sojourning and the nesting of certain rare species of aquatic migrating birds that go through the migrational corridor situated in the west of Romania. Unfortunately this reserve is in danger as the anthropic impact on it is a strong one, which has triggered a deterioration of the habitats, an unfavorable impact on the birds ’ food, the eutrophisation of the water and the clogging of the swamp, as well as the disappearance of the wet areas.
ABSTRACT: The archaeological site Cornesti “Iarcuri ” is the largest earth fortification in Roman... more ABSTRACT: The archaeological site Cornesti “Iarcuri ” is the largest earth fortification in Romania, made out of four concentric compounds, spreading over 1780 hectares. It is known since 1700, but it had only a few small attempts of systematic research, the fortress gained interest only after the publishing of some satellite images by Google Earth. It is located in an area of high fields and it occupies three interfluves and contains two streams. Our paper contains a geomorphologic, topographic and cartographic analysis of the site in order to determine the limits, the structure, the morphology, the construction technique and the functionality of such a fortification. Our research is based on satellite image analysis, on archaeological topography, on soil, climate and vegetation analysis as a way to offer a complex image, through this interdisciplinary study of landscape archaeology. Through our work we try not to date the site as this objective will be achieved only after completi...
Forum Geografic, 2010
The present study aims at examining the natural potential of the region as a prerequisite for the... more The present study aims at examining the natural potential of the region as a prerequisite for the planning and the expansion of the ski domain, in order to reinvigorate the resorts Muntele Mic and Poiana Mărului. The factors taken into account to identify the best areas for planning new ski tracks are: the altitude, the slope, the orientation of the slopes to the solar radiation, the duration and the thickness of the snow layer, the land use, the risk of snow avalanches occurrence and the degree of accessibility. Because the factors considered don’t have the same importance for the favorability, before the combination of the factors, we used the Analytical Hierarchy Process (AHP) implemented by the IDRISI Andes software to assign for each factor a relative weight to use in the analysis. The risk of snow avalanches occurrence was considered as restrictive factor (Boolean factor). The combination of factors by Weight of Evidence method resulted in the creation of the final model, whic...
Abstract: The paper presents a method for the semiautomated classification of the planation surfa... more Abstract: The paper presents a method for the semiautomated classification of the planation surfaces, using the Digital Terrain Model (DTM) and the object-oriented analysis. The effort undergone for developing such a method has a number of motivations. The first one is that these landforms are very important for decoding the geomorphologic evolution of the relief units. The second motivation concerns the fact that their identification and mapping, by using classical means, represents a difficult demarche, which requires a lot of time. Finally, the already-known limits of the relief analysis using the DTM at pixel level impose the testing of an object-oriented analysis, in which the area under study is divided into objects of various dimensions, as homogenous as possible from the viewpoint of one or
... ON THE BASIS OF THE DIGITAL TERRAIN MODEL. CASE STUDY: THE MEHEDINŢI MOUNTAINS (SOUTHERN CARP... more ... ON THE BASIS OF THE DIGITAL TERRAIN MODEL. CASE STUDY: THE MEHEDINŢI MOUNTAINS (SOUTHERN CARPATHIANS)1 Marcel TÖRÖK-OANCE2, Florina ARDELEAN2, Alexandru ONACA2 ... de Martonne, 1907; I. Ilie, 1970; I. Povară, 1997) (Fig. 3). ...
Hrvatski geografski …, 2009
This paper deals with some human geomorphological aspects concerning the impact in the alpine are... more This paper deals with some human geomorphological aspects concerning the impact in the alpine area of the Southern Carpathians (Transylvanian Alps). After fi eld investigations and taking into account the major effects of road building, military and mining activities, pasture and tourism activities in the geomorphological landscape we have the possibilities to present a distinct image of some relevant detailed situations. In our opinion the building of roads in the alpine area is by far the most dangerous way of intervention in the geomorphological landscape of the alpine area of the Southern Carpathians. The construction of these roads has altered the profi le of the slope and new scarps have appeared. This situation associated with the vibrations induced by the traffi c favours frost weathering, rock falling and rolling, coupled with the emergence of specifi c deposits and landforms (talus cones and scree) and, of course, with vertical and gully erosion, which is very typical of the area of soft rocks and soils.
Religions, Jun 24, 2024
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
<p>Snow avalanches are a denudational process and natural hazard that can severely ... more <p>Snow avalanches are a denudational process and natural hazard that can severely damage tourist infrastructure, roads and forests and lead to injury and loss of life. Political and socio-economic changes in mountain landscapes also affect avalanche activity. This study was carried out in the F&#259;g&#259;ra&#351; Mountains, a representative mountain unit in the Southern-Romanian Carpathians, which is dominated by glacial and periglacial relief, high altitudes, high snow cover thickness, snow persistence of about 8-9 months per year and high occurrence of avalanche hazards.</p><p>Our analysis of the location, spatial extent and number of avalanche events was based on extensive documentation using old photographs, maps, papers and statistics from Mountain Rescuer Public Services databases. We also used dendrogeomorphological data with a 130-year chronology, from which we extracted the frequency, magnitude and spatial extent, satellite images and event simulations using the RAMMS avalanche module in the most affected area of the Fagaras Mountains, the Balea-Capra glacier sector. The study data were collected between 1880 and 2020, in three different periods, each with political and socio-economic peculiarities: the Romanian Kingdom Period (1880-1945), the Communist Period (1946-1989) and the Post-Communist Period (1990-present). In the first period, the tourist infrastructure was modest with no tourist traffic and the avalanche danger was not recognized. Only three avalanche events with human casualties were recorded. In the communist period 23 avalanche events were recorded. In the post-communist period, 75 avalanche events were recorded. Avalanche activity has strongly interfered with the emergence of new elements of tourist infrastructure such as huts, alpine refuges and the Transf&#259;g&#259;r&#259;&#537;an highway but also with the increasing exposure of tourists especially in the last 20 years. This is why the F&#259;g&#259;ra&#351; Mountains are a real avalanche hot spot in the Romanian Carpathians, accounting for 51.2% of fatalities and 57.4% of injuries/burials.</p><p>Studies carried out in the Romanian Carpathians have shown that climate warming is more evident between 1,000 and 1,500 m than at higher altitudes where most avalanches have been recorded. In this context, it is difficult to determine that the frequency and spatial extent of avalanches is determined by global change.</p><p>&#160;</p>
DAAAM Proceedings, 2011
Electrical Resistivity Tomography (ERT) investigations were carried out on various periglacial la... more Electrical Resistivity Tomography (ERT) investigations were carried out on various periglacial landforms in the periglacial belt from Southern Carpathians. Geo-electrical soundings reveal the existence of permafrost in rock glaciers from Retezat Mountains, the depth of active layer, typical internal structure of periglacial deposits and the freezing regime of the sediments inside earth hummocks. The application of ERT investigations proves to be a useful geophysical method to detect the contrast between unfrozen sediments and ground ice from periglacial environments subsurface.
Amphibia-Reptilia
The common toad (Bufo bufo) is a widespread species in Europe, with accidental occurrence in cave... more The common toad (Bufo bufo) is a widespread species in Europe, with accidental occurrence in caves. This study reports the first case of breeding of B. bufo in a natural cave in the Carpathian Mountains. The breeding activity was observed at the end of May and the beginning of June. We identified pairs of common toads in axillary amplexus, egg strings and tadpoles up to a distance of 97 m inside the cave. We hypothesized that there is an active selection of some cave sites as breeding habitat and that the egg deposition is not randomly distributed inside the cave. In 25 sample points, we recorded ten cave environmental features and we assessed the relationship between egg strings presence and environmental features by performing a bias reduction in binomial-response generalized linear model. The results revealed that the strongest ecological factor determining the selection of breeding areas inside the cave was water flow velocity. The presence of light, although an important enviro...
Annales d'Université "Valahia" Târgovişte. Section d'Archéologie et d'Histoire, 2010
* Department of History, West University of Timisoara, Bd. V. Pârvan, No. 2-4, Timişoara, Timiş C... more * Department of History, West University of Timisoara, Bd. V. Pârvan, No. 2-4, Timişoara, Timiş County, Romania; dmicle@litere.uvt.ro, liviumaruia@yahoo.com, adriancintar@gmail.com ** Department of Geography, West University of Timisoara, Bd. V. Pârvan, No. 2-4, ...
The present paper is dedicated to the presentation of the ski potential of one of the most famous... more The present paper is dedicated to the presentation of the ski potential of one of the most famous ski domain in the Southern Carpathians-the Straja ski area. It is located in the southeastern part of the Retezat-Godeanu range, on the northern slope of the Vâlcan Mountains. Straja ski area is endowed with a relentless tourist flow drawn by the scenic beauty of the winter landscape, by its specific amenities and facilities and by the considerable low prices of cable transportation and accommodation. The present analysis starts with a quantitative evaluation of the terrain factors by creating the hypsometric, slope and aspect models but also of the climatic variables. It is followed by an account of its cable transportation facilities, Straja having 7 cable transportation lines, serving 6 ski trails, each different in size, vertical drop, surface, degree of difficulty, carrying capacity and some other services they offer such as night skiing. Furthermore we have also presented the cabl...
Hrvatski geografski glasnik/Croatian Geographical Bulletin, 2009
This paper deals with some human geomorphological aspects concerning the impact in the alpine are... more This paper deals with some human geomorphological aspects concerning the impact in the alpine area of the Southern Carpathians (Transylvanian Alps). After fi eld investigations and taking into account the major effects of road building, military and mining activities, pasture and tourism activities in the geomorphological landscape we have the possibilities to present a distinct image of some relevant detailed situations. In our opinion the building of roads in the alpine area is by far the most dangerous way of intervention in the geomorphological landscape of the alpine area of the Southern Carpathians. The construction of these roads has altered the profi le of the slope and new scarps have appeared. This situation associated with the vibrations induced by the traffi c favours frost weathering, rock falling and rolling, coupled with the emergence of specifi c deposits and landforms (talus cones and scree) and, of course, with vertical and gully erosion, which is very typical of the area of soft rocks and soils.
Geographia Polonica, 2016
Snow avalanches are a common geomorphic process and natural hazard in the Southern Carpathians (R... more Snow avalanches are a common geomorphic process and natural hazard in the Southern Carpathians (Romanian Carpathians). The spatial distribution of avalanches is controlled by topographical factors, meteorological variables and human factors. This study examines the occurrence of avalanches in two glacial areas in the Făgăraş massif, Bâlea (on the northern slope) and Capra (on the southern slope). During the period from 1963 to 2015 a total of 27 serious avalanche accidents were recorded in the months November-June in the Făgăraş massif resulting in 76 fatalities and 50 burials/injuries. From these avalanches, we examined five major avalanche accidents: the avalanche of June, 1974 which caused 6 fatalities and 8 burials/injuries; the avalanche of April 17, 1977 which caused 23 fatalities; the avalanche of December 23, 1988 which caused 3 fatalities; the avalanche of December 28, 2002 which caused 4 fatalities and the avalanche of February 20, 2010 which caused one fatality and 2 burials/injuries. Our results indicate a good correlation between some topographical factors. On the other hand, an increase in snowfall and snowstorms in particular are factors responsible for one avalanche event; early snowfall and a sudden increase in temperature are factors responsible for two avalanche events and snowfall and a sudden increase in temperature are factors responsible for one avalanche event. Using the weather scenarios we found high snowstorm frequency in one case, early-season weak layers of faceted crystals and depth hoar in two cases and well above-average total snowfall for one case.
Lakes Reservoirs and Ponds, Dec 1, 2010
The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situa... more The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situated in Timiş County and concentrating incontestable eco-fauna treasures represented by a number of about 167 bird species, which have been identified within it by ornithologists during over 7 decennia of observations. This reserve is a true "oasis" providing favorable conditions for the sojourning and the nesting of certain rare species of aquatic migrating birds that go through the migrational corridor situated in the west of Romania. Unfortunately this reserve is in danger as the anthropic impact on it is a strong one, which has triggered a deterioration of the habitats, an unfavorable impact on the birds' food, the eutrophisation of the water and the clogging of the swamp, as well as the disappearance of the wet areas.
Area
ABSTRACT
Annals, 2009
The archaeological site Cornesti “Iarcuri” is the largest earth fortification in Romania, made ou... more The archaeological site Cornesti “Iarcuri” is the largest earth fortification in Romania, made out of four concentric compounds, spreading over 1780 hectares. It is known since 1700, but it had only a few small attempts of systematic research, the fortress ...
Forum geografic, 2011
The Romanian Banat is endowed with an important mountain area composed of the Banatului Mountains... more The Romanian Banat is endowed with an important mountain area composed of the Banatului Mountains and the northwestern part of the Retezeat-Godeanu Range, i.e. Ţarcu-Muntele Mic. The purpose of our paper is to make an account of the features of the two important ski areas within this mountain area: Ţarcu-Muntele Mic and Semenic. Their structure evolved over time according to the local and regional interest, but also due to more recent activities of the Romanian investors. Our research concluded that both ski domains have a great natural potential to sustain winter-sports and to further develop what today are two very small resorts. They have a low capability of attraction due to the small capacity of the pistes and to the fact that each resort has only two ski-lifts. In both cases the access is rather limited and as far as accommodation is concerned in both cases it is disproportional in relation with the provisioned capacity of the ski pistes. Having these aspects in view, we conclude that these resorts do not represent as yet a major attraction, especially due to the fact that there are undercapitalized and underdeveloped for the raising demand of the regional market for winter-sports. On the other hand in both cases projects have already been blueprinted by the aforementioned investors which are waiting to be undertaken for development.
The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situa... more The reserve known as the Satchinez Swamps, also called the Delta of Banat is a bird reserve situated in Timiş County and concentrating incontestable eco-fauna treasures represented by a number of about 167 bird species, which have been identified within it by ornithologists during over 7 decennia of observations. This reserve is a true “oasis ” providing favorable conditions for the sojourning and the nesting of certain rare species of aquatic migrating birds that go through the migrational corridor situated in the west of Romania. Unfortunately this reserve is in danger as the anthropic impact on it is a strong one, which has triggered a deterioration of the habitats, an unfavorable impact on the birds ’ food, the eutrophisation of the water and the clogging of the swamp, as well as the disappearance of the wet areas.
ABSTRACT: The archaeological site Cornesti “Iarcuri ” is the largest earth fortification in Roman... more ABSTRACT: The archaeological site Cornesti “Iarcuri ” is the largest earth fortification in Romania, made out of four concentric compounds, spreading over 1780 hectares. It is known since 1700, but it had only a few small attempts of systematic research, the fortress gained interest only after the publishing of some satellite images by Google Earth. It is located in an area of high fields and it occupies three interfluves and contains two streams. Our paper contains a geomorphologic, topographic and cartographic analysis of the site in order to determine the limits, the structure, the morphology, the construction technique and the functionality of such a fortification. Our research is based on satellite image analysis, on archaeological topography, on soil, climate and vegetation analysis as a way to offer a complex image, through this interdisciplinary study of landscape archaeology. Through our work we try not to date the site as this objective will be achieved only after completi...
Forum Geografic, 2010
The present study aims at examining the natural potential of the region as a prerequisite for the... more The present study aims at examining the natural potential of the region as a prerequisite for the planning and the expansion of the ski domain, in order to reinvigorate the resorts Muntele Mic and Poiana Mărului. The factors taken into account to identify the best areas for planning new ski tracks are: the altitude, the slope, the orientation of the slopes to the solar radiation, the duration and the thickness of the snow layer, the land use, the risk of snow avalanches occurrence and the degree of accessibility. Because the factors considered don’t have the same importance for the favorability, before the combination of the factors, we used the Analytical Hierarchy Process (AHP) implemented by the IDRISI Andes software to assign for each factor a relative weight to use in the analysis. The risk of snow avalanches occurrence was considered as restrictive factor (Boolean factor). The combination of factors by Weight of Evidence method resulted in the creation of the final model, whic...
Abstract: The paper presents a method for the semiautomated classification of the planation surfa... more Abstract: The paper presents a method for the semiautomated classification of the planation surfaces, using the Digital Terrain Model (DTM) and the object-oriented analysis. The effort undergone for developing such a method has a number of motivations. The first one is that these landforms are very important for decoding the geomorphologic evolution of the relief units. The second motivation concerns the fact that their identification and mapping, by using classical means, represents a difficult demarche, which requires a lot of time. Finally, the already-known limits of the relief analysis using the DTM at pixel level impose the testing of an object-oriented analysis, in which the area under study is divided into objects of various dimensions, as homogenous as possible from the viewpoint of one or
... ON THE BASIS OF THE DIGITAL TERRAIN MODEL. CASE STUDY: THE MEHEDINŢI MOUNTAINS (SOUTHERN CARP... more ... ON THE BASIS OF THE DIGITAL TERRAIN MODEL. CASE STUDY: THE MEHEDINŢI MOUNTAINS (SOUTHERN CARPATHIANS)1 Marcel TÖRÖK-OANCE2, Florina ARDELEAN2, Alexandru ONACA2 ... de Martonne, 1907; I. Ilie, 1970; I. Povară, 1997) (Fig. 3). ...
Hrvatski geografski …, 2009
This paper deals with some human geomorphological aspects concerning the impact in the alpine are... more This paper deals with some human geomorphological aspects concerning the impact in the alpine area of the Southern Carpathians (Transylvanian Alps). After fi eld investigations and taking into account the major effects of road building, military and mining activities, pasture and tourism activities in the geomorphological landscape we have the possibilities to present a distinct image of some relevant detailed situations. In our opinion the building of roads in the alpine area is by far the most dangerous way of intervention in the geomorphological landscape of the alpine area of the Southern Carpathians. The construction of these roads has altered the profi le of the slope and new scarps have appeared. This situation associated with the vibrations induced by the traffi c favours frost weathering, rock falling and rolling, coupled with the emergence of specifi c deposits and landforms (talus cones and scree) and, of course, with vertical and gully erosion, which is very typical of the area of soft rocks and soils.