A5065143821- Groundwater and Isotope Geochemistry
- Groundwater flow and contamination studies
- Groundwater and Watershed Analysis
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Hydrology and Watershed Management Studies
- Marine and environmental studies
- Methane Hydrates and Related Phenomena
- Karst Systems and Hydrogeology
- Geochemistry and Geologic Mapping
- Flood Risk Assessment and Management
- Geological Studies and Exploration
- Water Quality and Pollution Assessment
- Soil erosion and sediment transport
- Transboundary Water Resource Management
- Geochemistry and Elemental Analysis
- Reservoir Engineering and Simulation Methods
- earthquake and tectonic studies
- Maritime and Coastal Archaeology
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Soil and Water Nutrient Dynamics
- Underwater Vehicles and Communication Systems
- Microbial Community Ecology and Physiology
Helmholtz Centre for Environmental Research
2015-2024
Due to its extreme salinity and high Mg concentration the Dead Sea is characterized by a very low density of cells most which are Archaea. We discovered several underwater fresh brackish water springs in harboring dense microbial communities. provide first characterization these communities, discuss their possible origin, hydrochemical environment, energetic resources putative biogeochemical pathways they mediating. Pyrosequencing 16S rRNA gene community fingerprinting methods showed that...
Abstract. In this paper we present a semi-automatic method to infer groundwater flow-paths based on the extraction of lineaments from digital elevation models. This is especially adequate in remote and inaccessible areas where in-situ data are scarce. The combined linear filtering object-based classification provides lineament map with high degree accuracy. Subsequently, differentiated into geological morphological using auxiliary information finally evaluated terms hydro-geological...
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. Groundwater can be a major source of nutrients and contaminants to river systems in agriculturally active areas with significant implications for water quality ecosystem health. The Elbe eastern Germany, characterised by Cretaceous aquifers upstream Quaternary downstream, is located intense agricultural activity therefore vulnerable nutrient fluxes. This study investigates the time scales diffuse groundwater-borne entering using multi-environmental tracers (³H/³He, SF₆, CFCs, ¹⁴C)....
Climate change and anthropogenic activities are increasing stress on groundwater resources, even in generally water-rich areas like Germany, posing significant threats to socio-economic ecological systems. As the perception of impacts is often slow implicit, it results limited understanding drought socio-economics. To investigate these impacts, we use a unique biweekly dataset 28,540 shallow deep observations from 1950 2022 collated German water authorities. We thoroughly check data quality...
Drought is one of the costliest natural hazards widespread occurrence and long-lasting economic, social, environmental consequences. Droughts are gradual phenomenon with far-reaching effects that develop over time. Therefore, understanding how drought conditions spread through terrestrial compartments essential for predicting impacts, adjusting mitigation strategies, enhancing climate adaptation. Here, we analyze characterized propagation from meteorological to streamflow groundwater...
The major groundwater resources of the Arabian Peninsula are stored in large sedimentary basins its eastern part. Evaporation from continental salt pans (playas) is an important process water assessments upper principal aquifers – Upper Mega Aquifer system as it constitutes a significant sink. However, literature values on evaporation rates vary widely and usually report about coastal where seawater assumed. present study applies different methods to provide comprehensive picture system. A...
The infiltration of untreated wastewater into aquifers highly endangers the availability fresh-water for human consumption in semi-arid areas. This growing problem potable water scarcity urgently requires solutions groundwater protection. Decision support systems local treatments settlements already exist. However, main challenge implementing these regional protection is to identify where are most efficient whole region. In this paper, we addressed scale-crossing with an interdisciplinary...
The semi-arid region of the Dead Sea heavily relies on groundwater resources. This dependence is exacerbated by both population growth and agricultural activities demands a sustainable management. Yet, information discharge as one main component for management varies significantly in this area. Moreover, locations, volume temporal variability are still only partly known. A multi-temporal thermal satellite approach applied to localise semi-quantitatively assess along entire coastline. authors...
Abstract. The deduction by conventional means of qualitative and quantitative information about groundwater discharge into lakes is complicated. Nevertheless, at least for semi-arid regions with limited surface water availability, this crucial to ensure future availability drinking irrigation purposes. Overcoming lack information, we present a satellite-based multi-temporal sea-surface-temperature (SST) approach. It exploits the occurrence thermal anomalies outline locations using example...
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. Despite being the main drinking water resource for over 5 million people, balance of Eastern Mountain Aquifer system on western side Dead Sea is poorly understood. The regional aquifer consists fractured and karstified limestone – aquifers Cretaceous age, it can be separated into a Cenomanian (upper aquifer) Albian (lower aquifer). Both are exposed along mountain ridge around Jerusalem, which recharge area. From here, recharged groundwater flows in highly towards east discharges...