Aristotelis Efstathios Koskinas

Aristotelis Efstathios Koskinas
Rps Group Plc

Master of Civil Engineering NTUA

About

9
Publications
4,512
Reads
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30
Citations
Citations since 2017
9 Research Items
30 Citations
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201720182019202020212022202302468
201720182019202020212022202302468
201720182019202020212022202302468

Publications

Publications (9)
Article
Full-text available
Hydroclimatic processes such as precipitation, temperature, wind speed and dew point are usually considered to be independent of each other. In this study, the cross−correlations between key hydrological−cycle processes are examined, initially by conducting statistical tests, then adding the impact of long−range dependence, which is shown to govern...
Article
The concept of environmental flow assessment is a crucial element of modified ecosystems featuring large infrastructure such as dams and reservoirs, but the relatively short length of available inputs raises questions about the reliability of any given environmental flow scheme. However, with the use of stochastics, it is possible to quantify these...
Article
Full-text available
Dams design and their operation cause strong environmental alteration and therefore a long-term debate is ongoing for the scale of these projects. At the same time, the concept of Environmental Flow Assessment (EFA) is a crucial element of modified ecosystems featuring large infrastructure such as dams and reservoirs for mitigating potential enviro...
Preprint
Dams design and their operation cause strong environmental alteration and therefore a long-term debate is ongoing for the scale of these projects. At the same time, the concept of Environmental Flow Assessment (EFA) is a crucial element of modified ecosystems featuring large infrastructure such as dams and reservoirs for mitigating potential enviro...
Article
Full-text available
Large-scale infrastructure projects such as dams provide a source of water and clean 7 energy to downstream communities. This is achieved by modifying a river's natural flow, which 8 changes the dynamic of the local ecosystem. To minimize any negative facets, the concept of 9 environmental flow was introduced. Modern studies have taken this origina...
Article
Full-text available
In February 2017, a failure occurring in Oroville Dam’s main spillway risked causing severe damages downstream. A unique aspect of this incident was the fact that it happened during a flood scenario well within its design and operational procedures, prompting research into its causes and determining methods to prevent similar events from reoccurrin...
Thesis
Full-text available
The subject of this thesis is the 2017 Oroville Dam spillway incident. This event is yet another example of the severe problems the United States has with maintaining its large infrastructure. However, in order to better understand how events unfolded, it is first necessary to conduct a detailed analysis of Oroville Dam and the basic elements of it...
Presentation
Full-text available
Non-connected islands to the electric gird are often depending on oil-fueled power plants with high unit cost. A hybrid energy system with renewable resources such as wind and solar plants could reduce this cost and also offer more environmental friendly solutions. However, atmospheric processes are characterized by high uncertainty that does not p...
Poster
Full-text available
We simulate the electrical energy demand in the remote island of Astypalaia. To this end we first obtain information regarding the local socioeconomic conditions and energy demand. Secondly, the available hourly demand data are analysed at various time scales (hourly, weekly, daily, seasonal). The cross-correlations between the electrical energy de...

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Projects

Projects (3)