A5040527420- Hydrology and Watershed Management Studies
- Karst Systems and Hydrogeology
- Pesticide and Herbicide Environmental Studies
- Flood Risk Assessment and Management
- Soil and Water Nutrient Dynamics
- Pharmaceutical and Antibiotic Environmental Impacts
- Groundwater flow and contamination studies
- Soil erosion and sediment transport
- Groundwater and Isotope Geochemistry
- Constructed Wetlands for Wastewater Treatment
- Groundwater and Watershed Analysis
- Urban Stormwater Management Solutions
- Hydrology and Sediment Transport Processes
- Hydrology and Drought Analysis
- Water resources management and optimization
- Water Quality and Pollution Assessment
- Landslides and related hazards
- Microplastics and Plastic Pollution
- Environmental Conservation and Management
- Pesticide Residue Analysis and Safety
- Odor and Emission Control Technologies
- Soil and Unsaturated Flow
- Cryospheric studies and observations
- Wastewater Treatment and Nitrogen Removal
- Environmental Toxicology and Ecotoxicology
Berlin Center for Epidemiology and Health Research
2025
University of Freiburg
2015-2024
Leuphana University of Lüneburg
2015
Norsk Hydro (Germany)
2010
Institute of Hydrology of the Slovak Academy of Sciences
2008
Karst regions represent 7–12% of the Earth's continental area, and about one quarter global population is completely or partially dependent on drinking water from karst aquifers. Climate simulations project a strong increase in temperature decrease precipitation many world over next decades. Despite this potentially bleak future, few studies specifically quantify impact climate change resources. This review provides an introduction to karst, its evolution, particular hydrological processes....
Significance Clean groundwater is essential for water supply in many regions of the world. Fast flow to through enlarged cracks and fissures, which known transmit short-lived pollutants into groundwater, often neglected large-scale studies. We quantify rapid transport by fast carbonate rock storage Europe, North Africa, Middle East. show that, transport, up 50% infiltrating may still reach table, substantially more than estimated when neglected. These results imply that contamination risk...
Background. The global burden of disease attributable to chronic hepatitis C virus (HCV) is very large, yet the uptake curative antiviral therapies remains low, reflecting marginalized patient population and arduous nature current treatments. Methods. safety effectiveness a nurse-led model care inmates with HCV was evaluated in 3 Australian correctional centers. featured protocol-driven assessment, triage, management therapy by specifically trained nurses, specialist physician support...
[1] Many hydrological systems exhibit complex subsurface flow and storage behavior. Runoff observations often only provide insufficient information for unique process identification. Quantitative modeling of water solute fluxes presents a potentially more powerful avenue to explore whether hypotheses about system functioning can be rejected or conditionally accepted. In this study we developed tested four model structures, based on different behavior, identify the large Mediterranean karst...
Abstract Karst aquifers provide large parts of the water supply for Mediterranean countries, though climate change is expected to have a significant negative impact on availability. Recharge therefore key variable that has be known sustainable groundwater use. In this study, we present new approach combines two independent methods karst recharge estimation. The first method derives spatially distributed information mean annual patterns through GIS analysis. second process‐based model...
Floating photovoltaics (FPV) refers to photovoltaic power plants anchored on water bodies with modules mounted floats. FPV represents a relatively new technology in Europe and is currently showing rapid growth deployment. However, effects thermal characteristics of lakes are largely unknown, yet these crucial for licensing approval such plants. Here, we quantify impacts lake temperature, energy budget stratification through measurements near-surface lateral wind flow, irradiance, air...
Abstract. In karst systems, near-surface dissolution of carbonate rock results in a high spatial and temporal variability groundwater recharge. To adequately represent the dominating recharge processes hydrological models is still challenge, especially data scarce regions. this study, we developed model that based on conceptual epikarst. It represents epikarst heterogeneity as set system property distributions to produce not only single time series, but variety series representing...
Abstract. More than 30% of Europe's land surface is made up karst exposures. In some countries, water from aquifers constitutes almost half the drinking supply. Hydrological simulation models can predict large-scale impact future environmental change on hydrological variables. However, information needed to obtain model parameters not available everywhere and regionalisation methods have be applied. The responsive behaviour systems quantified by individual metrics, so-called system...
Abstract. Knowledge of soil moisture dynamics in the unsaturated zone provides valuable information on temporal and spatial variability groundwater recharge. This is especially true for Mediterranean region, where a substantial fraction long-term recharge expected to occur during high magnitude precipitation events above-average wet winters. To elucidate process understanding infiltration processes these extreme events, monitoring network gauges, meteorological stations, plots was installed...
An opportunity for efficient implementation of floating photovoltaics can be the coupling with other renewable energies, such as hydropower. The resulting synergies contribute to benefit both technologies. Particularly in arid regions, hydropower reservoirs face considerable evaporation. As a benefit, FPV minimises evaporation while simultaneously generating energy. In this study, we simulate reduction due by applying hydrodynamic General Lake Model together yield simulation model Zenit...
Abstract The purpose of this research was to identify groundwater recharge mechanisms and measure flow velocities through the epikarst vadose zone in a typical site Mediterranean carbonate karst natural rain conditions. By avoiding artificial flushing more realistic travel times could be measured, effective resultant velocity inferred. Additionally, detailed monitoring enabled better description quantification infiltration percolation processes. Nine different cave drips were monitored...
Lower Jordan River Basin, Eastern Mediterranean Water scarcity and data are two of the main challenges for water management in study region, therefore, all possible information should be extracted from existing data. In this context, Budyko framework offers possibilities not yet sufficiently explored evaluating water-energy balance estimating availabilities. study, we applied a parametric type equation to basin compared global products, output hydrological model TRAIN-ZIN as well values...
Abstract Runoff generation in a Mediterranean carbonate rock environment—the Judaean Mountains, West Bank and Israel—was studied by 2 day sprinkling experiment on an 18 × 10 m plot. During the first day, three spells of 24·1 mm h −1 (12·3 mm), 27·8 mm) 14·4 (12·5 were applied, almost saturating runoff On second 20 later, two 18·7 (34·3 35·2 (25·4 followed. Surface was combination infiltration excess from rocky portions plot saturation areas covered soil. Soil accelerated lateral adjacent...
Abstract. Pesticides applied onto agricultural fields are frequently found in adjacent rivers. To what extent and along which pathways they transported is influenced by intrinsic pesticide properties such as sorption degradation. In the environment, incomplete degradation of pesticides leads to formation transformation products (TPs), may differ from parent compounds regarding their fate characteristics. Thus, export processes TPs catchments streams also be different. order test this...
Lower Jordan River. The main aim of this study was to identify differences in catchment runoff reactions across a variety scales and strong climatic gradient correlate them physical properties. For purpose we observed rainfall responses on hillslope (1000 m2) several nested catchments (3.2–129 km2) over period five years. Catchment characteristics surface cover types were derived from high-resolution aerial images. To gain process understanding single high magnitude event analysed detail...
A distributed, field‐based rainfall‐runoff model was developed for the 1400‐km 2 arid catchment of Nahal Zin, Israel. No calibration with measured flow data performed. The used rainfall radar input applied over a that spatially disaggregated into different terrain types according to hydrologically relevant surface characteristics. Hortonian overland generation on each type parameterized independently using values initial loss and temporal decay infiltration determined from existing field...
Salt tracers (sodium bromide/sodium chloride) and two different fluorescent tracers, uranine (UR) sulforhodamine-B (SRB), were injected as a pulse into six surface flow wetlands (SFWs). documented wetland hydraulics. The used reference to mimic photolytic decay sorption (SRB) of contaminants illustrated by comparison real herbicide (Isoproturon), which was model for mobile pesticides. Tracer breakthrough curves document residence time distributions, hydraulic efficiencies, peak attenuation...