A5058604831- Climate change and permafrost
- Cryospheric studies and observations
- Landslides and related hazards
- Geological Formations and Processes Exploration
- Marine and environmental studies
- Arctic and Antarctic ice dynamics
- Geology and Paleoclimatology Research
- Integrated Water Resources Management
- Pleistocene-Era Hominins and Archaeology
- Urban Heat Island Mitigation
- Geological Studies and Exploration
- Tree Root and Stability Studies
West University of Timişoara
2020-2025
Abstract. Rock glaciers, composed of debris and ice, are widely distributed across cold mountain regions worldwide. Although research on rock glaciers is gaining momentum, the distinct behaviour in marginal periglacial environments remains poorly understood. In this study, we combine remote sensing situ methods to gain insights into characteristics transitional Carpathian Mountains. We applied Persistent Scatterer Interferometry (PSInSAR) Sentinel-1 images from 2015 2020 identify areas with...
Our study highlights the usefulness of very high resolution (VHR) images to detect various types disturbances over permafrost areas using three example regions in different zones. The focuses on detecting subtle changes land cover classes, thermokarst water bodies, river dynamics, retrogressive thaw slumps (RTS) and infrastructure Yamal Peninsula, Urengoy Pechora regions. Very high-resolution optical imagery (sub-meter) derived from WorldView, QuickBird GeoEye conjunction with declassified...
Advective heat fluxes (chimney effect) in porous debris facilitate ground cooling on scree slopes, even at low altitudes, and promote the occurrence of sporadic permafrost. The spatial distribution surface temperature an overcooled, low-altitude slope Romanian Carpathians was analyzed using UAV-based infrared thermography different seasons. analysis revealed significant gradients within slope, with colder, forest-insulated lower sections contrasting warmer, solar-exposed upper regions....
The hydrology of rock glaciers is a complex and poorly understood field, marked by uncertainties in water flow dynamics the uneven distribution frozen substrate. One effective method for identifying permafrost - particularly marginal regions like Southern Carpathians measuring temperature mountain springs at end summer. Once seasonal snow has melted, becomes primary factor influencing low temperatures springs.This study examines spatial temporal variability spring Retezat Mountains to assess...
This study provides the first estimate of water volume equivalent (WVEQ) ground ice in intact rock glaciers within Southern Carpathians, based on an content range 10 % to 20 %. The research focuses 48 glaciers, most which are located Retezat Mountains. Using existing geophysical measurements, was determined between and %, representing attempt WVEQ at such a low content. thickness-to-area scaling method, subsurface volumes were estimated converted using density factor 0.9 g/cm3. results show...
Mountain watersheds play a crucial role in sustaining freshwater resources, yet they are highly vulnerable to climate change. In this study, we investigated the summer water temperature of 35 alpine springs highest part Retezat Mountains, Southern Carpathians, between 2020 and 2023. During four-year monitoring period, temperatures across all ranged from 1.2 °C 10.5 °C. Springs emerging rock glaciers had lowest average (2.37 °C), while those on cirque valley floors were warmest (6.20 followed...
Permafrost is defined as the ground (including soil or rock) that remains at below 0°C for a minimum of two consecutive years (Harris et al., 1988). Due to permafrost`s sensitivity climate change, it essential study hydrology rock glaciers predict and mitigate impacts climate-induced changes, including permafrost thaw.Physico-chemical analyses along with temperature monitoring springs seeping from base glacier fronts were conducted over (2022 2023) in various glacial valleys central...
The present study addresses, for the first time, problem of spatio-temporal reconstruction geomorphic processes using tree-rings in Sâmbăta Valley (Romanian Carpathians). dendrogeomorphic analysis was conducted two different sites, one affected by snow avalanches and other rockfall. A total number 130 Picea Abies were sampled sites. results yield 13 major between 1950 2020 a return period 3.3 years. winters with highest activity index 1988, 1997 2012. rockfall highlights several years...
<p>Ground-surface thermal (GST) measurements in high mountains are frequently used to examine the near-surface energy exchange fluxes. GST records also determine if microclimatic conditions at rock glacier surface suitable for permafrost preservation. is commonly measured with miniature temperature data loggers. A decade record (2011-2021) of and air from twenty sites Southern Carpathians analyzed this work. The controlling role meteorological, topographical subsurface...