A5088634901- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Hydrology and Sediment Transport Processes
- Groundwater and Isotope Geochemistry
- Soil erosion and sediment transport
- Hydrology and Drought Analysis
- Fish Ecology and Management Studies
- Water Quality and Pollution Assessment
- Coastal and Marine Management
- Heavy metals in environment
- Soil and Water Nutrient Dynamics
- Coastal and Marine Dynamics
- Climate variability and models
- Recycling and Waste Management Techniques
- Groundwater flow and contamination studies
- Groundwater and Watershed Analysis
- Remote Sensing and LiDAR Applications
- Water resources management and optimization
- Marine and environmental studies
- Hydrological Forecasting Using AI
- Mine drainage and remediation techniques
- Water-Energy-Food Nexus Studies
- 3D Surveying and Cultural Heritage
- Extraction and Separation Processes
- Climate Change Communication and Perception
University of the Aegean
2015-2025
Cadi Ayyad University
2023
Technical University of Crete
2007-2014
Hellenic Centre for Marine Research
2007
Abstract. Temporary streams are those water courses that undergo the recurrent cessation of flow or complete drying their channel. The structure and composition biological communities in temporary stream reaches strongly dependent on temporal changes aquatic habitats determined by hydrological conditions. Therefore, structural functional characteristics fauna to assess ecological quality a reach cannot be used without taking into account controls imposed regime. This paper develops methods...
Intermittent rivers are prevalent in many countries across Europe, but little is known about the temporal evolution of intermittence and its relationship with climate variability. Trend analysis annual seasonal number zero-flow days, maximum duration dry spells mean date events performed on a database 452 varying degrees between 1970 2010. The relationships flow investigated using standardized precipitation evapotranspiration index (SPEI) indices describing large-scale atmospheric...
Stream velocity and flow are very important parameters that must be measured accurately to develop effective water resource management plans. There various methods tools measure the but, nowadays, image-based a promising alternative does not require physical contact with body. The current study describes application of low cost unmanned aerial vehicle was selected in order capture video over specific reach Aggitis River Greece. captured frames were analyzed by three different software...
ABSTRACT The assessment of the ecological status water bodies, as requires by European Water Framework Directive, can raise a number problems when applied to temporary streams. These are because particular physical, chemical and biological conditions resulting from recurrent cessation flow or even complete drying stream beds. In such non‐permanent reference quality standards developed for permanent streams may only be applicable under certain circumstances not at all. Work conducted within...
Surface-groundwater interactions in intermittent rivers and ephemeral streams (IRES), waterways which do not flow year-round, are spatially temporally dynamic because of alternations between flowing, non-flowing dry hydrological states. Interactions surface groundwater often create mixing zones with distinct redox gradients, potentially driving high rates carbon nutrient cycling. Yet a complete understanding how underlying biogeochemical processes across surface-groundwater flowpaths IRES...
In these times of strong pressure on aquatic ecosystems and water resources due to climate change abstraction, intermittent rivers ephemeral streams (IRES) (rivers that periodically cease flow and/or dry) have become valuable assets. Indeed, not only do they supply but also offer services for humanity. Despite a growing recognition towards IRES, information assessing their ecosystem (ES) remains scarce. first step, an international interdisciplinary group researchers developed methodological...
As a network of researchers we release an open-access database (EUSEDcollab) water discharge and suspended sediment yield time series records collected in small to medium sized catchments Europe. EUSEDcollab is compiled overcome the scarcity data at relevant spatial scales for studies on runoff, soil loss by erosion delivery. Multi-source measurement from numerous institutions were harmonised into common metadata structure. Data reuse facilitated through accompanying descriptors providing...
A reach at the estuary of Krathis River in Greece was used to assess how in-stream processes alter its hydrologic and biogeochemical regime. exhibited high annual flow variability transmission losses become significant, especially during dry months. These are enhanced chemistry due release nutrients from river sediments. fluxes significant because they correspond 11% dissolved inorganic nitrogen flux river. Release species influenced by temperature, while phosphate not levels were below...
Abstract In achieving the final objective of European Water Framework Directive, evaluation ‘hydrological status’ a water body in catchment is utmost importance. It represents divergence actual hydrological regime from its ‘natural’ condition and may thus provide crucial information about ecological status river. this paper, new approach evaluating temporary river was tested. The flow has been classified through analysis two metrics: permanence predictability no‐flow conditions that were...
The present study examines perceptions and preparedness for flooding in Greece, a country increasingly impacted by natural hazards, particularly due to the effects of climate change. Despite frequent occurrence floods, public remains insufficient many areas. Through survey 1282 respondents from various regions Greece using R statistical software process analyse data, research explores relationship between individual flood risk perceptions, prior experiences, household-level preparedness....
Understanding and analyzing low river flows are some of key tasks effective water management, particularly in Chile’s Mediterranean regions, where irregular rainfall distribution leads to drought scarcity. This study aims assess low-flow trends the four major Chilean basins (Maipo, Rapel, Maule, Biobío) by calculating three hydrological indices: mean annual minimum maximum (MAM), base flow index (BFI), standardized precipitation (SPI), using data from 18 hydrometric stations. The indicators...
The occurrence of flash floods in urban catchments within the Mediterranean climate zone has witnessed a substantial rise due to change, underscoring urgent need for early-warning systems. This paper examines implementation an early flood monitoring and forecasting system (EMFS) predict critical overflow level small stream on Lesvos Island, Greece, which history severe incidents requiring rapid response. is supported by network telemetric stations that measure meteorological hydrometric...
Drought is a severe disaster, increasingly exacerbated by climate change, and poses significant challenges worldwide, particularly in arid semi-arid regions like Morocco. This study aims to assess monitor drought using multi-index approach provide comprehensive understanding of its spatio-temporal dynamics at both meteorological agricultural levels. The research focuses on the Upper Oum Er Rabia watershed, which spans 35,000 km2 contributes approximately quarter Morocco’s renewable water...