A5054970375- Water resources management and optimization
- Water-Energy-Food Nexus Studies
- Water Governance and Infrastructure
- Climate change impacts on agriculture
- Agricultural risk and resilience
- Child Nutrition and Water Access
- Water Systems and Optimization
- Land Use and Ecosystem Services
- Hydrology and Watershed Management Studies
- Agricultural Economics and Policy
- Transboundary Water Resource Management
- Complex Systems and Decision Making
- Hydrology and Drought Analysis
- Energy and Environment Impacts
- Environmental Conservation and Management
- Economics of Agriculture and Food Markets
- Agricultural Innovations and Practices
- Simulation Techniques and Applications
- Economic and Environmental Valuation
- Climate variability and models
- Disaster Management and Resilience
- Smart Grid Energy Management
- Transportation Planning and Optimization
- Ecosystem dynamics and resilience
- Cooperative Studies and Economics
Helmholtz Centre for Environmental Research
2016-2025
Pacific Northwest National Laboratory
2021-2023
Leipzig University
2012-2016
Limited water availability, population growth, and climate change have resulted in freshwater crises many countries. Jordan's situation is emblematic, compounded by conflict-induced shocks. Integrating knowledge across hydrology, climatology, agriculture, political science, geography, economics, we present the Jordan Water Model, a nationwide coupled human-natural-engineered systems model that used to evaluate security under socioeconomic changes. The complex simulates trajectory of system,...
Abstract Scarce and unreliable urban water supply in many countries has caused municipal users to rely on transfers from rural wells via unregulated markets. Assessments of this pervasive re-allocation institution its impacts aquifers, consumer equity affordability are lacking. We present a rigorous coupled human–natural system analysis rural-to-urban tanker market demand Jordan, quintessential example nation relying heavily such markets, fed by predominantly illegal abstractions. Employing...
Abstract The role of individual and collective human action is increasingly recognized as a prominent arguably paramount determinant in shaping the behavior, trajectory, vulnerability multisector systems. This influence operates at multiple scales: from short‐term (hourly to daily) long‐term (annually centennial) timescales, local global, pushing systems toward either desirable or undesirable outcomes. However, effort represent models has been fragmented across philosophical, methodological,...
Abstract. Large-scale hydrological models (LHMs) are commonly used for regional and global assessment of future water shortage outcomes under climate socioeconomic scenarios. The irrigation croplands, which accounts the lion's share human consumption, is critical in understanding these trajectories. Despite irrigation's defining role, LHM frameworks typically impose trajectories land use that underlie demand, neglecting potential dynamic feedbacks form instigation subsequent adaptation to...
Jordan faces an archetypal combination of high water scarcity, with a per capita availability around 150 m3 year significantly below the absolute scarcity threshold 500 m3, and strong population growth, especially due to Syrian refugee crisis. A transition more sustainable consumption patterns will likely require Jordan’s authorities rely strongly on demand management in future. We conduct case study effects pricing policies, using agent-based model household capital Amman, order analyze...
Pune, near Mumbai, is India’s 9th most populated city. As an emerging megacity, Pune projected to grow from 7.4 11.4 million residents by 2050. At that time, a two-year drought under moderate climate change would lead extraordinary water supply challenges, especially for the urban poor. Without policy interventions mid-century, low-income population will be unduly affected shortages as indicated Gini coefficient exceeding 0.4. This inequity occurs households experience unaffordable...
Arid developing countries face growing challenges from water scarcity, which are exacerbated by deficient piped supply infrastructures. Increasing block tariffs (IBTs), charging higher rates with increasing consumption, can potentially reconcile cost recovery to finance these infrastructures an equitable and affordable sharing of the burden. A firm understanding impacts varying prices socio-economic conditions on residential demand is necessary for designing IBTs that promote objectives....
Systems models of the Food–Water–Energy (FWE) nexus face a conceptual difficulty: systematic integration local stakeholder perspectives into coherent framework for analysis. We present novel procedure to co-produce and systematize real-life complexity knowledge forge it clear-cut set challenges. These are clustered Pressure–State–Response (PSIR) framework, which ultimately guides development systems model closely attuned needs stakeholders. apply this approach case emerging megacity Pune...
Emerging megacities in the global south face unprecedented transformation dynamics, manifested rapid demographic, economic, and physical growth. Anticipating associated sustainability resilience challenges requires an understanding of future trajectories. Global change models provide consistent high-level urbanization scenarios. City-scale urban growth accurately simulate complex Modeling approaches linking local scale, however, are underdeveloped. This work introduces a novel approach to...
Agricultural systems in regions with previously low scale irrigation such as Thuringia, Germany, face an increase of droughts and weather extremes through climate change. Farmers are expected to adapt by increasing a means securing incomes. For Thuringia this entails water security implications due limited groundwater resources strong reliability on surface highlighting the need understand feedbacks between human natural order ensure efficient allocation protection resources. So far, few...
As climate change intensifies, regions worldwide face increasing impacts from extreme weather events including, compound and successive occurrences. These pose significant risks to agriculture, where variability directly affects crop yields revenue. Understanding the role of human-induced in exacerbating these effects is essential for informed decision-making. In this study, we quantify direct yield damages associated revenue losses attributable Germany 2018 2022. We achieve by simulating...
The growing frequency and severity of extreme compound events will pose unprecedented water scarcity challenges. These challenges are not only driven by changes in resource availability, but also demands quality, can affect both arid non-arid regions. As a consequence, trade-offs between rural urban uses across multiple sectors intensify. Behaviors, infrastructures, institutions many historically water-abundant regions adapted to efficiently allocate under critical levels scarcity. resulting...
<title>Abstract</title> Climate change increases water stress in many regions globally, necessitating expensive infrastructure investments to maintain reliable supplies. To fund infrastructure, utilities often raise rates, increasing bills for low-income households. The magnitude of resulting impacts on affordable access depends not only utility costs but also interactions between financing, rate design, climate, and household use patterns. Here, we develop a modeling framework...
Jordan is a relatively small country with limited natural resources, but it faces burgeoning demand for water, energy, and food to accommodate growing population, refugee migration, the challenges of climate change that will persist through rest this century. Jordan’s Main Water Conveyance System backbone distributing scarce water resources meet domestic agricultural demands. Therefore, understanding how future energy requirements system may critical managing country’s resources. This paper...
Many private households spend considerable amounts of time accessing water, for instance by walking to and queuing at public access points, or filling storage vessels taps with low flow rates. This has an opportunity cost, which can be substantial may impact water services quantities demand. In a novel form diary study, we gathered detailed consumption use data from 50 in five informal settlements the Indian metropolis Pune, accompanied household survey in-depth interviews. With data,...
ABSTRACT The European Union (EU) is still lagging behind its objective to halt the loss of biodiversity. Current research shows promising ways improve cost‐effectiveness existing policy mixes for habitat protection through introduction market‐based instruments. To harness potential these ideas pursuit EU's biodiversity conservation during upcoming changes in landscape and identify optimal allocation each instrument, it necessary understand scope instruments across all relevant fields EU...
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As climate changes globally and locally, the risk of temperature anomalies, heat waves droughts have significantly increased. Studies demonstrated that exert adverse biophysical effects on crop production, posing an unprecedented threat to harvests resulting in substantial economic losses Europe. Assessing these drought impacts agriculture is crucial for developing effective strategies preparedness, mitigation, adaptation. This paper contributes this effort by presenting a framework estimate...
The Hashemite Kingdom of Jordan is confronted with a severe freshwater crisis shaped by excess water demand and intermittent public supply. In Jordan’s capital most populous city, Amman, the pervasive shortage gave rise to private tanker operations, which transport groundwater from wells in vicinity city sell it urban consumers. These markets have received little attention literature up date, particularly regard their relevance for commercial users. This paper aims empirically estimate...
Private households around the world use and combine multiple water sources, including diverse forms of market services self-supply. The reasons for this have so far not been explained in a coherent framework, nor implications management policy sufficiently analyzed. Here, we examine how heterogeneity services, household co-production, risks provision influence demand patterns. We apply an economic production model that incorporates two quality levels different activities to exemplary...