Demetris Koutsoyiannis Home Page
Demetris Koutsoyiannis is professor of the National Technical University of Athens in Hydrology and Analysis of Hydrosystems; also professor of Hydraulics in the Hellenic Army’s Postgraduate School of Technical Education of Officers Engineers; Editor of Hydrological Sciences Journal; and member of the editorial boards of Hydrology and Earth System Sciences and Water Resources Research.
He has been awarded the Henry Darcy Medal 2009 by the European Geosciences Union for his outstanding contributions to the study of hydrometeorological variability and to water resources management.
Contributions at a glance through Google Scholar
Main research contributions – Views and opinions
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Keywords of contribution |
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What determines the nature and properties of hydrological and geophysical processes? Why these processes exhibit seemingly peculiar behaviours, such as long-term persistence, fluctuations on large scales, clustering, state and time scaling, and heavy (or long) distribution tails? |
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Are future climate projections reliable and do they provide grounds to assess impacts in hydrological processes? How well does current climate research represent the intrinsic climate uncertainty? |
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What are the main characteristics and implications of the Hurst-Kolmogorov stochastic dynamics (also known as the Hurst phenomenon, Joseph effect, scaling behaviour, long-term persistence, multi-scale fluctuation, long-range dependence, long memory)? |
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How can we effectively and consistently describe the behaviour of extreme rainfall and flood? Are hydrological practices for estimating extreme rainfall appropriate? What is the value of the concept of probable maximum precipitation and flood? |
Extreme rainfall: Probabilistic description vs. probable maximum precipitation |
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Do hydrological processes reveal deterministic chaos? Do they exhibit deterministic trends? Or can they be better modelled as stochastic processes? |
Deterministic
vs. stochastic representation of hydrological processes |
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How can we build stochastic models of hydrological processes effectively and parsimoniously describing the natural behaviours and peculiarities? How can these behaviours be modelled in a multivariate setting? |
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How can we disaggregate hydrological data? How can we couple stochastic models of different time scales? |
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How can we develop and calibrate models of the hydrological cycle or its components? |
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How can we more effectively model and manage large hydrosystems? Can we combine simulation and optimization techniques? How many decision variables do we need in the management of a large hydrosystem? How can we perform global or multicriteria optimization of hydrosystems? |
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How recent are the modern technologies and management practices in water supply, wastewater, and agricultural water use? What is the contribution of Ancient Greece in hydraulic technologies? |
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What are the pathologies of the scientific publishing system and how can it be improved? |
Activities: CV | Appendix to CV | Publications in journals | List of all publications
Courses (mostly in Greek): Stochastic Methods | Urban Hydraulic Works | Hydrometeorology | Theses supervised | Hydroglossica
Itia team | Itia repository | Itia meteo station | Favourite journals | Favourite blogs: Climate audit | Real climate | Niche Modeling
