A5087265839- Distributed and Parallel Computing Systems
- Scientific Computing and Data Management
- Hydrology and Watershed Management Studies
- Environmental Monitoring and Data Management
- Advanced Computational Techniques and Applications
- Remote Sensing in Agriculture
- Flood Risk Assessment and Management
- Geographic Information Systems Studies
- Geological Modeling and Analysis
- Reservoir Engineering and Simulation Methods
- Atmospheric and Environmental Gas Dynamics
- Land Use and Ecosystem Services
- Geochemistry and Geologic Mapping
- Water-Energy-Food Nexus Studies
- Service-Oriented Architecture and Web Services
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Sustainability and Climate Change Governance
- Computational Physics and Python Applications
- Microbial Community Ecology and Physiology
- Wastewater Treatment and Nitrogen Removal
- Advanced Database Systems and Queries
- Semantic Web and Ontologies
- Hydrological Forecasting Using AI
- Environmental and Agricultural Sciences
University of Geneva
2015-2022
Technical University of Cluj-Napoca
2009-2015
Laboratoire d'Informatique de Paris-Nord
2009-2012
Pressures on natural resources are increasing and a number of challenges need to be overcome meet the needs growing population in period environmental variability. Some these issues can monitored using remotely sensed Earth Observations (EO) data that increasingly available from freely openly accessible repositories. However, full information potential EO has not been yet realized. They remain still underutilized mainly because their complexity, volume, lack efficient processing...
Since the opening of Earth Observation (EO) archives (USGS/NASA Landsat and EC/ESA Sentinels), large collections EO data are freely available, offering scientists new possibilities to better understand quantify environmental changes. Fully exploiting these satellite will require approaches for their acquisition, management, distribution, analysis. Given rapid changes emergence big data, innovative solutions needed support policy frameworks related actions toward sustainable development. Here...
When defining indicators on the environment, use of existing initiatives should be a priority rather than redefining each time. From an Information, Communication and Technology perspective, data interoperability standardization are critical to improve access exchange as promoted by Group Earth Observations. GEOEssential is following end-user driven approach Essential Variables (EVs), intermediate value between environmental policy their appropriate sources. international local scales,...
Several holistic approaches are based on the description of socio-ecological systems to address sustainability challenge. Essential Variables (EVs) have potential support these by describing status Earth system through monitoring and modeling. The different classes EVs can be organized along environmental policy framework Drivers, Pressures, States, Impacts Responses. EV concept represents an opportunity strengthen providing observations seize fundamental dimensions Group Observation (GEO)...
High spatial and thematic resolution of Land Use/Cover (LU/LC) maps are central for accurate watershed analyses, improved species, habitat distribution modeling as well ecosystem services assessment, robust assessments LU/LC changes, calculation indices. Downscaled Switzerland were obtained three time periods by blending two inputs: the Swiss topographic base map at a 1:25,000 scale national statistics from aerial photointerpretation on 100 m regular lattice points. The resulting was factor...
During the past two centuries, world has undergone deep societal, political, and economical changes that heavily affected human life. The above contributed to an increased awareness about impact policy decisions have at local global level. Therefore, there is a strong need policy-making decision-making processes for sustainable development be based on best available knowledge Earth system environment. recent advance of information technologies enables running complex models use large amount...
Abstract. The calibration and execution of large hydrological models, such as SWAT (soil water assessment tool), developed for areas, high resolution, huge input data, need not only quite a long time but also computation resources. model supports studies predictions the impact land management practices on water, sediment, agricultural chemical yields in complex watersheds. paper presents gSWAT application web practical solution environmental specialists to calibrate extensive models run...
Satellite images supply important information on Earth surface, weather, clime, geographic areas, vegetation, and natural phenomena. Processing of satellite data requires high computation resources flexible tools in order to search, discover, reveal the main information, experiment new algorithms, include them into Observation applications. This paper describes features architectures ESIP gProcess platforms, supporting Grid based imagery processing. The development methodology applications...
Ecosystem Services Web (ESWS) are new web-based approaches to quantifying the benefits that humans derive from nature. Specifically, ESWS application of open web standards ecosystem service assessment facilitate creation, iteration, and dissemination in a seamless way. This integration streamlines collaboration, automation, curation, while providing an interface through which novel advances can be incorporated. The approach creates level interoperability data provenance whereby each...
Different scenarios based on environmental changes and water quality models could be used to assess the sustainability vulnerability of a particular geographical region. The gSWAT application allows calibration SWAT execution different calibrated model over Grid infrastructure. Based requirements for models, lots input output data, high number simulations that must performed in process, offer both storing solutions. This paper presents system highlighting architectural components presenting...
The paper presents a comparative analysis made on the calibration of large-scale model, executed both grid and multicore architectures. goal is to highlight advantages brought by infrastructure over architecture, especially for applications, which require large amounts data number executions. application used as case study this research work SWAT hydrological covering Danube River Basin.
The global changes that are currently threatening the natural environment demand appropriate answers and solutions by environmental science community. increasing amount of heterogeneous data—Big Data—needed for endeavor typically requires large computational storage resources. This manuscript presents a general conceptual model easily porting applications on different parallel distributed infrastructures. We developed application illustrate it through use case hydrological modeling. also...
The assessment of the sustainability and vulnerability a particular geographical region could be performed by simulating different scenarios based on environmental changes water quality models. gSWAT application allows calibration SWAT models execution calibrated model over Grid infrastructure. requirements for running involves lots input output data, high number simulations that must in process, recommend infrastructure storing This paper presents platform highlighting architectural...
The latest issues in simulating and analyzing different Earth Science phenomena require the development of complex algorithms, based on satellite images formats. main goal this paper is to process these data a standard manner automatically publish execution results by using Web Processing Services (WPS). services needs be slightly when involving large volume processed over Grid infrastructure opposed standalone machines. This provides an implementation solution WPS within GreenLand platform,...
The Black Sea Catchment area is well known for subjects such as ecologically unsustainable development or inadequate resource management. EnviroGRIDS project addresses these issues by using emerging information technologies. enviroGRIDS Web Portal allows the users to access geospatial functionality given infrastructure, and high power computation resources Grid infrastructure. Observation System portal provides a single point of applications tools. Both vertical horizontal interoperability...
Topics such as the sustainability and vulnerability of land management practices on water quality quantity are very important in these days both for decision makers citizens. The enviroGRIDS FP7 project addresses some topics Black Sea Catchment area. One software tools developed this is gSWAT. It allows calibration SWAT hydrological models a flexible development environment uses distributed computational infrastructures to speedup simulations. (Soil Water Assessment Tool) well-known...
The paper focuses on and takes the shape of an approach meant to mediate interaction between Geospatial Grid infrastructures by introducing a new component referred as Mediator. shall diminish gap two create interoperable communication. solution thereinafter advanced aims at adapting services so follow different execution flows, either Web or Grid, considering input conditions running platforms factors required maximize performances.
The practice of raw material extraction has a high impact on the environment and represents potential threat to health thriving local communities. concept Extractive Essential Variables (EEVs) are explored in order propose variables that can be used quantify environmental footprint mineral extraction. Considering interdependence mining activities with social, economic issues, target development monitoring tools for implementation Sustainable Development Goals (SDGs). identification EEVs is...
The paper presents an experimental study on the migration of scientific applications from Grid to Cloud Cluster infrastructure. research aims highlight main conceptual, technical, and technological issues such a process by exploring solutions for distributed processing, execution management complex task, increased data management, gathering processed data. As case study, based gSWAT application is used, supporting SWAT hydrological model calibration over challenge mapping platform onto...
Satellite images play an important role in developing Geographical Information System software applications that prove to be useful for different Earth Science phenomena analysis. Accurate results are obtained from high resolution images, or by applying the same algorithm multiple times over a specific input data set. In both cases volume needs processed is large, and usually involves distributed infrastructures. order non-technical users use these algorithms, they should described flexible...