A5041537250- Karst Systems and Hydrogeology
- Landslides and related hazards
- Geophysical Methods and Applications
- Rock Mechanics and Modeling
- Maritime and Coastal Archaeology
- Grouting, Rheology, and Soil Mechanics
- Groundwater and Watershed Analysis
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Oral and Maxillofacial Pathology
- Marine and environmental studies
- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Geophysical and Geoelectrical Methods
- Archaeological Research and Protection
- Geotechnical Engineering and Analysis
- Geotourism and Geoheritage Conservation
- Geological Modeling and Analysis
- Fire effects on ecosystems
- Groundwater flow and contamination studies
- Methane Hydrates and Related Phenomena
- Underwater Acoustics Research
- Coastal and Marine Dynamics
- Species Distribution and Climate Change
- Underwater Vehicles and Communication Systems
- Tree Root and Stability Studies
Leipzig University
2023-2025
GEOMAR Helmholtz Centre for Ocean Research Kiel
2021-2023
GFZ Helmholtz Centre for Geosciences
2016-2021
University of Potsdam
2019
University of Göttingen
2010-2013
University of Lisbon
2013
Abstract Climate extremes are on the rise. Impacts of extreme climate and weather events ecosystem services ultimately human well‐being can be partially attenuated by organismic, structural, functional diversity affected land surface. However, ongoing transformation terrestrial ecosystems through intensified exploitation management may put this buffering capacity at risk. Here, we summarize evidence that reductions in biodiversity destabilize functioning facing extremes. We then explore if...
Abstract Soil is central to the complex interplay among biodiversity, climate, and society. This paper examines interconnectedness of soil climate change, societal impacts, emphasizing urgent need for integrated solutions. Human‐induced biodiversity loss change intensify environmental degradation, threatening human well‐being. Soils, rich in vital ecosystem function regulation, are highly vulnerable these pressures, affecting nutrient cycling, fertility, resilience. also crucially regulates...
Abstract. Mechanical and/or chemical removal of material from the subsurface may generate large cavities, destabilisation which can lead to ground collapse and formation sinkholes. Numerical simulation interaction cavity growth, host deformation overburden is desirable better understand sinkhole hazard but a challenging task due involved high strains discontinuities. Here, we present 2-D distinct element method numerical simulations growth development. Firstly, simulate by quasi-static,...
Abstract Ground subsidence caused by natural or anthropogenic processes affects major urban areas worldwide. Sinkhole formation and infrastructure fractures have intensified in the federal capital of Maceió (Alagoas, Brazil) since early 2018, forcing authorities to relocate affected residents place buildings under demolition. In this study, we present a 16-year history (2004–2020) surface displacement, which shows precursory deformations 2004–2005, reaching maximum cumulative approximately...
The Dead Sea region has faced substantial environmental challenges in recent decades, including water resource scarcity, ~ 1 m annual decreases the level, sinkhole development, ascending-brine freshwater pollution, and seismic disturbance risks. Natural processes are significantly affected by human interference as well climate change tectonic developments over long term. To get a deep understanding of their interactions, innovative scientific approaches that integrate disciplinary research...
Abstract. Karst groundwater systems are characterized by the presence of multiple porosity types. Of these, subsurface conduits that facilitate concentrated, heterogeneous flow challenging to resolve geologically and geophysically. This is especially case in evaporite karst systems, such as those present on shores Dead Sea, where rapid geomorphological changes linked a fall base level over 35 m since 1967. Here we combine field observations, remote-sensing analysis, geophysical surveying...
Sinkholes can cause significant damage to infrastructures, agriculture, and endanger lives in active karst regions like the Dead Sea’s eastern shore at Ghor Al-Haditha. The common sinkhole mapping methods often require costly high-resolution data manual, time-consuming expert analysis. This study introduces an efficient deep learning model designed improve using accessible satellite imagery, which could enhance management practices related sinkholes other geohazards evaporite regions....
The Dead Sea ecosystem, with its hypersaline conditions, base-level fluctuations, and active tectonics, presents a unique challenge for geological studies. Its equilibrium is increasingly unbalanced due to overexploitation of water mineral resources. Remote sensing, including drone-based photogrammetry satellite imaging, monitors large-scale surface changes, while geophysical methods like electromagnetic seismic surveys reveal subsurface structures. integration these has transformed our...
The Mansfelder Mulde (German for trough) around Lutherstadt Eisleben is considered as an active subsidence area. Deep-seated subrosion the potential reason large- and small-scale earth surface deformation. appearance of sinkholes potentially hazardous expression karst has led to increasing interest in Specifically, study area Neckendorf southwest Mulde, two major occurred early 2000s, affecting a federal road allotment garden site. At end 2021, cracks formed again along main just 800 meters...
Abstract. The 2-D distinct element method (DEM) code (PFC2D_V5) is used here to simulate the evolution of subsidence-related karst landforms, such as single and clustered sinkholes, associated larger-scale depressions. Subsurface material in DEM model removed progressively produce an array cavities; this simulates a network subsurface groundwater conduits growing by chemical/mechanical erosion. growth cavity coupled mechanically gravitationally loaded surroundings, that cavities can grow...
Abstract. Near-surface geophysical imaging of alluvial fan settings is a challenging task but crucial for understating geological processes in such settings. The Ghor Al-Haditha at the southeast shore Dead Sea strongly affected by localized subsidence and destructive sinkhole collapses, with significantly increasing formation rate since ca. 1983. A similar increase observed also on western Sea, correlation an ongoing decline level. Since different structural models upper 50 m varying...
Abstract. Enclosed topographic depressions are characteristic of karst landscapes on Earth. The developmental relationship between depression types, such as sinkholes (dolines) and uvalas, has been the subject debate, mainly because long timescales in classical limestone settings impede direct observation. Here we characterize morphometric properties spatio-temporal development ∼1150 five uvalas formed from ∼1980 to 2017 an evaporite setting along eastern coast hypersaline Dead Sea (at Ghor...
Abstract Many studies show the sensitivity of our environment to manmade changes, especially anthropogenic impact on atmospheric and hydrological processes. The effect Solid Earth processes such as subsidence is less straightforward. Subsidence usually slow relates interplay complex hydro-mechanical processes, thus making relations changes difficult observe. In Dead Sea (DS) region, however, climatic forcing strong over-use fresh water massive. An observation period 3 years was sufficient...
This paper aims to identify and discuss the chances, solutions, possible drawbacks related establishment of safe geotourism sites in subsidence-affected areas, exemplarily applied Ghor Al-Haditha sinkhole site at southeastern shore Dead Sea. Such areas shall be established territory proposed future UNESCO Global Geopark (UGGp) Jordan. The highlights geopark basis its creation are subsidence features stream channels found along SE shoreline Sea, which form both a natural hazard geological...
A vision for the establishment of a Geopark in Jordan is given this work, with subsequent application to UNESCO Global programme. The Dead Sea area and its surroundings have suffered strong changes last decades, accompanied by variety natural hazards related enhanced erosional processes. aspiring will thematically encompass influence that these hazards, including flash floods subsidence, had on local population, from geological, over historical up recent times. hydrogeology geomorphology,...
The endorheic Konya Basin is a vast aggradational plain in Central Anatolia, Türkiye. It occupies significant portion of Province, covering approximately 50,000 km2. basin subjected to intense groundwater withdrawal and extensive agricultural activities with excessive irrigation. These have led human-induced hazards, such as sinkholes regional land subsidence. Although sinkhole occurrence mainly occurs the Karapınar area, subsidence primarily observed central sector city, 2 million...
Abstract. The fall of hydrological base-level is long established as a driver geomorphological change in both fluvial and karst systems, but few natural occurrences occur on timescales suitable for direct observation. Here we document the spatiotemporal development karstic landforms along eastern coast hypersaline Dead Sea (at Ghor al-Haditha, Jordan) during 50-year period regional decline from 1967 to 2017. Combining remote sensing data with close-range photogrammetric surveys, show that 35...
Climate extremes are on the rise. Impacts of extreme climate and weather events ecosystem services ultimately human well-being can be partially attenuated by organismic, structural, functional diversity affected land surface. However, ongoing transformation terrestrial ecosystems through intensified exploitation management may put this buffering capacity at risk. Here, we summarise evidence that reductions in biodiversity destabilise functioning facing extremes. We then explore if impaired...
Abstract. Near-surface geophysical imaging of alluvial fan settings is a challenging task, but crucial for understating geological processes in such settings. The Ghor Al-Haditha at the southeast shore Dead Sea strongly affected by localized subsidence and destructive sinkhole collapses, with significantly increasing formation rate since ca. 1983. A similar increase observed also on western Sea, correlation an ongoing decline level. Since different structural models upper 50 m varying...
Abstract. Mechanical and/or chemical removal of material from the subsurface may generate large sub-surface cavities, destabilisation which can lead to hazardous ground collapse and formation enclosed depressions termed sinkholes. Numerical simulation interaction cavity growth, host deformation overburden is desirable better understand sinkhole hazard, but a challenging task due involved high strains discontinuities. Here we present 2D Distinct Element Method numerical simulations growth...
Changing climate, especially the increase in frequency and intensity of extreme events such as heat waves droughts, poses a significant challenge to biosphere, threatening biodiversity overall specifically exacerbating tree mortality. Countermeasures management actions often prove insufficient due delayed visual indicators stress.  Real-time monitoring physiological structural changes characteristics related abiotic parameters, sap flow, leaf angle, or soil moisture, plays crucial...