Ionela GavrilaBabeş-Bolyai University | UBB · Faculty of Geography
Ionela Gavrila
About
23
Publications
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143
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Citations since 2017
Introduction
Skills and Expertise
Publications
Publications (23)
We reconstruct snow-avalanche (SA) activity along three adjacent avalanche paths in the northern part of the Rodna Mountains (Eastern Carpathians, Romania) using tree-ring analyses. We sampled a total of 238 disturbed Norway spruce (Picea abies (L.) Karst.) trees and used the growth anomalies found in tree rings to obtain an avalanche chronology at...
The Mazeri Valley in the southern Caucasus Mountains, Georgia, is characterized by a highly dynamic landscape with several active mass-wasting processes. The spatial and temporal dynamics of these geomorphic processes have, over time, resulted in the formation of large cones and fans. In this context, the coupling between the hillslope and the chan...
The return period is a key element used for snow-avalanche characterization. To calculate the return period, historical data regarding past snow-avalanche activity are required. In mountain areas where past snow avalanches are poorly documented, dendrogeomorphic approaches constitute a reliable method for the reconstruction of past snow avalanches...
Snow avalanches are some of the most important geomorphic processes that disturb the forests at treeline in the Romanian Carpathians. The occurrence of multiple snow avalanches in the same area leads to the development of the avalanche paths. In Parâng Mountains, the spatial extent and the frequency of past avalanche events are poorly documented. I...
Dans notre étude, nous avons mis en relation les données dendrochronologiques avec 50 variables climatiques mensuelles (1961 - 2015) en utilisant la régression multiple. Le couloir d’avalanches investigué est situé dans la partie ouest des Monts Parâng (Carpates Méridionales, Roumanie), à proximité de la station météorologique Parângul Mic. A parti...
Snow avalanches are widespread process in high massifs belonging to Romanian Carpathians range. The sudden and unpredictable occurrence of snow avalanches cause damage to forest vegetation, infrastructures, transportation roads and sometimes loss of life. Understanding the process activity is therefore crucial for hazard prediction and mitigation m...
Tree-ring analyses were applied in this study, in order to document the spatial–temporal distribution of the past snow avalanche activity along two adjacent avalanche paths in Piatra Craiului Mountains (Southern Carpathians, Romania). The dendrogeomorphic reconstruction performed on 235 Picea abies (L.) Karst. trees is based on the analysis of the...
Snow avalanches represent a widespread phenomenon in the Carpathians, damaging forests, properties, infrastructures and causing fatalities. In remote mountain areas, historical records of snow avalanche activity are commonly lacking. Trees repeatedly disturbed by snow avalanches record evidence of past events in their annual rings. The main purpose...
Debris flows (DF) are one of the dominant geomorphic processes and play an important role in the present-day morphodynamics of the steep slopes and stream channels in the Romanian Carpathians. A large number of studies describe the characteristics, dynamics, and site occurrence of various types of active present-day mass movement processes affectin...
Abstract Landslides are among the most destructive natural hazards in several regions. Here we summarize our findings regarding this phenomenon in the Transylvanian Plain (Romania) using two susceptibility models: the statistical index and the frequency ratio model. Using Esri’s ArcGIS Raster Calculator tool we generated susceptibility maps by summ...
Snow avalanches are common processes on steep slopes of the alpine and subalpine belts in Parâng Mountains (Southern Carpathians, Romania). The increasing tourism activities in these high mountain areas expose tourists to a high level of hazard especially in the avalanche prone areas, where the past avalanche activity is poorly documented. Snow ava...
ABSTRACT. - Snow Avalanche Activity in Parâng Ski Area Revealed by Tree-Rings.
Snow avalanches hold favorable conditions to manifest in Parâng Mountains, but only one
event is historically known, without destructive impact upon infrastructure or fatalities and
this region wasn’t yet the object of avalanche research. The existing ski infrastructure...
Parâng Mountains belong to Southern Carpathians, having the maximum altitude in Parângul Mare Peak (2519 m a.s.l.). The geology is dominated by crystalline schists, due to whom the relief is characterized by steep slopes. Between 1400 – 1700 m the average annual temperature is around 2-3ᴼC and the total precipitation about 1000-1200 mm/year. Conife...
Our study aims to achieve the working stages to be followed in the geomorphosites inventory process. The proposed inventory methodology requires the performing of three main stages: documentation regarding the morphological specificity of the studied area; identification of landforms with potential of geomorphosite and the inventory of the geomorph...
The influence of fluvial dynamics on geoarchaeosites from the Danube Bank (the Măcin Branch). Case study: Troesmis Fortress (Romania). Built since the first century AD, the fortresses along the right bank of the Danube river have suffered decay along the ages as a result of anthropic and geomorphological factors (weathering of construction rocks, f...
Our study area is situated in the North-Western part of Dobrogea Plateau, respectively in the South-East of Romania. The purpose of this paper is to perform an interpretative analysis of the morphometric parameters of the Măcin Mountains, Niculiţel Hills and Nalbant Basin landscape for highlighting areas with touristic potential. To achieve our goa...
Our study follow the assessment of geomorphological heritage of the Măcin Mountains for geotourism development in the area. In order to analyze geomorphological features of this area and to achieve a digital map, we created a GIS databases comprising topographic map sheets, digital ortophotos and satellite images. Using these datasets the main geom...
Projects
Projects (2)
L'école d'été doctorale intitulée "Méthodes dendrochronologiques, d'analyse des palynomorphes et documentaires utilisées dans la reconstitution des changements climatiques et environnementaux" vise à offrir un cadre approprié de rassemblement et d’échange d’idées entre doctorants et chercheurs ayant un intérêt particulier pour la reconstitution des conditions climatiques et environnementales. L’école d’été doctorale offre l’opportunité de discuter sur de diverses méthodes appliquées dans la reconstitution de la variabilité climatique et des changements environnementaux (dendrochronologie, analyse des palynomorphes, documents cartographiques historiques et photographies aériennes) , en insistant tant sur les possibilités que celles-ci offrent, mais aussi sur leurs limites dans la reconstitution spatio-temporelle des événements.
Organisateurs :
• Université Babeş-Bolyai, Faculté de Géographie, Cluj-Napoca :
Ecole Doctorale Géographie (Géographie Physique et Environnement) Laboratoire de Dendrochronologie (GeoDendroLab)
• Agence Universitaire de la Francophonie (AUF), Bureau Europe Centrale et Orientale (BECO)
• Association Roumaine des Géomorphologues (AGR)
Station de Recherche de l’UBB,
Baru (département Hunedoara, Roumanie)
10 - 14 septembre 2017
L’objectif général du projet est d’élaborer les cartes des aléas géomorphologiques des espaces avec activité et infrastructure touristiques des Massifs du Parâng (Roumanie) et Pirin (Bulgarie). Des méthodes et techniques de recherche spécifiques à la télédétection, aux SIG, à la dendrogéomorphologie et à la cartographie géomorphologique numérisée seront utilisés. Les résultats escomptés du projet auront un impact sur le plan scientifique constituant une méthodologie de zonage des aléas géomorphologiques applicable dans la construction de toute carte des aléas géomorphologiques des autres régions de haute montagne.
