A5069199630- Hydrology and Drought Analysis
- Water resources management and optimization
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Climate change impacts on agriculture
- Groundwater and Watershed Analysis
- Water-Energy-Food Nexus Studies
- Groundwater and Isotope Geochemistry
- Groundwater flow and contamination studies
- Species Distribution and Climate Change
- Climate variability and models
- Water Governance and Infrastructure
- Remote Sensing in Agriculture
- Precipitation Measurement and Analysis
- Fuel Cells and Related Materials
- Advancements in Solid Oxide Fuel Cells
- Transboundary Water Resource Management
- Granular flow and fluidized beds
- Smart Agriculture and AI
- Water Quality and Resources Studies
- Zoonotic diseases and public health
- Remote-Sensing Image Classification
- Agricultural risk and resilience
- Animal and Plant Science Education
- Reservoir Engineering and Simulation Methods
Wageningen University & Research
2021-2025
Newcastle University
2016-2024
Kyushu University
2019-2021
International Water Management Institute
2020
International Water Management Institute
2020
Smithers Group (United Kingdom)
2006
Bechtel (United States)
2003
Abstract Citizen science is proliferating in the water sciences with increasing public involvement monitoring resources, climate variables, quality, and mapping modeling exercises. In addition to well‐reported scientific benefits of such projects, particular solving data scarcity issues, it common extol for participants, example, increased knowledge empowerment. We reviewed 549 publications concerning citizen applications examine personal motivations, wider community benefits. The potential...
Higher global temperatures are increasing the frequency of flash droughts.
Drought impacts monitoring has been called the missing piece in drought assessment. The potential to improve management is high but uncertain due rare analyses of datasets, predominantly because there are few programmes generate datasets. conducted on ground much Brazil by local observers at monthly and municipality scale support Brazilian Monitor. In Ceará state, within drought-prone semiarid northeast Brazil, over 3600 reports were completed agricultural extension officers from 2019 2022....
This study shows how community-based hydrometeorological monitoring programmes can provide reliable high-quality measurements comparable to formal observations. Time series of daily rainfall, river stage and groundwater levels obtained by a local community in Dangila woreda, northwest Ethiopia, have passed accepted quality control standards been statistically validated against sources. In region low-density declining networks, situation shared much the developing world, fill observational...
Abstract Although most recharge estimation studies apply multiple methods to identify the possible range in values, many do not distinguish clearly enough between inherent uncertainty of and other factors affecting results. We investigated additional value that can be gained from multi‐method through insights into hydrogeological understanding, addition characterizing uncertainty. Nine separate groundwater methods, with a total 17 variations, were applied at shallow aquifer northwest...
Abstract. Drought monitoring and early warning systems (DEWSs) are seen as helpful tools to tackle drought at an stage reduce the possibility of harm or loss. They usually include indices attributed meteorological, agricultural and/or hydrological drought: physically based drivers. These used determine onset, end severity a event. impacts, like water food securities, less monitored even not included in DEWSs. Therefore, likelihood experiencing these impacts is often simply linearly linked...
Abstract Drought‐affected regions often contain high densities of small reservoirs, usually informally built, as drought‐coping mechanism. These structures influence socio‐hydrological dynamics and have the potential to alter hydrological processes relevant drought emergence development. This study aimed analyze a concentration reservoirs on intensification evolution events. We present an innovative method, which we call “Drought Cycle Analysis”, that tracks concomitance precipitation water...
Abstract Drought management is currently informed by a variety of approaches, mostly responding to drought crisis when it happens. Toward more effective and integrated management, we introduce conceptual diagnosis framework inspired diagnostic concepts from the field medicine. This comprises five steps: 1. Initial assessment; 2. Diagnostic testing; 3. Consultation; 4. Communication diagnosis; 5. Treatment prognosis. To illustrate need for proposed approach, four case studies recently...
The major concern of applying citizen science in water resources is the quality data. However, there are limited scientific studies addressing this and showing data value. In study, we established a program Akaki catchment which hosts Addis Ababa, Ethiopia. Citizen scientists monitored river stage at multiple gauging sites for years. We evaluated through systematic control. Reference was obtained from neighboring stations professionals while evaluation involved graphical inspections...
Volcanic aquifers are sources of groundwater for both urban and rural areas. Their occurrence in geological formations water quality the main issues sustainable utilisation. Dangila town its surrounding area, northwest Ethiopia, is assessed hydrogeological framework based on well hydrochemical data. The study showed that area has a multi-aquifer system: an unconfined perched aquifer at shallow depth and; semi-confined confined greater Quaternary basalts. five facies: Ca-HCO3, Ca-Mg-HCO3,...
Abstract. Despite recent studies emphasising the dual human and physical nature of droughts, there is a lag in advancing this insight drought monitoring early warning systems (DEWSs). These mainly depend on hydro-climatic indices often overlook experiences affected communities, resulting gap. This study introduces efficacy matrix (MEM) to assess alignment between officially monitored data, relevant impacts, actual rural community northeastern Brazil, which we investigated through interviews....
We present an evidence-based approach to identify how best support development of groundwater for small-scale irrigation in sub-Saharan Africa (SSA). argue that it is important focus this effort on shallow resources. demonstrate and test proposal at a case study site: Dangila woreda the north-western highlands Ethiopia. This site was selected allow exploration weathered volcanic regolith type aquifer formation which found South Lake Tana also exists more extensively across believe lessons...
This study applies 'Social-Ecological Systems (SES)' concepts with the aim of analysing why and how events happening across spatial, jurisdictional, temporal scales influence droughts their impacts in rural communities. To trace evolution on livelihood system, we conducted a drought diagnosis community Riacho da Cruz Banabuiú basin semi-arid Northeast Brazil. We analysed this reacted differently to previous either contributed adaptation system or its collapse. SES theory helped us posit that...
Understanding recharge processes is fundamental to improve sustainable groundwater resource management. Shallow (SGW) being developed for multiple purposes in Ethiopia without consideration of monitoring. We established a citizen science-based hydro-meteorological monitoring network, with focus on SGW estimation, Eshito micro-watershed, Ethiopia. Citizen scientists collected rainfall, groundwater-level and stream water-level data. characterized the shallow aquifer using pumping tests. The...
Abstract. Human actions induce and modify droughts. Yet, there remain scientific gaps regarding how anthropogenic dynamics hydrological processes are intrinsically entangled in drought evolution. This poses the challenge of developing ways to evaluate human behavior its pattern co-evolution with cycle, mainly related water use landscape modifications. We propose that prospect theory explains emergence impacts, such as crop losses shortage, if they considered failed welfare expectations...
Rural communities in sub-Saharan Africa commonly rely on shallow hand-dug wells and springs; consequently, aquifers are an extremely important water source. Increased utilisation of groundwater could help towards achieving multiple sustainable development goals (SDGs) by positively impacting poverty, hunger, health. However, these little studied poorly understood, partly due to a paucity existing hydrogeological information many regions Africa. This study develops conceptual model for...
Molototsi sand river, Limpopo, South Africa. Ephemeral rivers are common throughout the world's dryland regions, often providing a water source where more conventional sources unavailable. However, these alluvial aquifers poorly represented in literature. Extensive field investigations allowed estimation of stored volume and characterisation an aquifer. Computed aquifer properties included hydraulic conductivity 20–300 m/d, porosity 38–40%, thickness 0–6 m. Dykes other subcrops commonly...
Abstract. Despite recent studies emphasising the dual human and physical nature of droughts, there is a lag in advancing this insight drought monitoring early warning systems (DEWS). These mainly depend on indices often overlook experiences affected communities, resulting drought-monitoring gap. This study introduces Monitoring Efficacy Matrix (MEM) to assess alignment between officially monitored data, relevant impacts, actual rural community Northeast Brazil, which we investigated through...
Abstract. There is a need for an evidence-based approach to identify how best support development of groundwater small scale irrigation in sub-Saharan Africa (SSA). We argue that it important focus this effort on shallow resources which are most likely be used by poor rural communities SSA. However, consider constraints, since vulnerable over-exploitation and climatic variability. examine here the opportunities constraints draw upon evidence from Ethiopia. present methodology assessing...