A mathematical framework for studying rainfall intensity-duration-frequency relationships
- Demetris Koutsoyiannis, Demosthenes Kozonis, Alexandros Manetas
- Engineering
- 1 April 1998
Statistics of extremes and estimation of extreme rainfall: II. Empirical investigation of long rainfall records / Statistiques de valeurs extrêmes et estimation de précipitations extrêmes: II.…
- Demetris Koutsoyiannis
- Environmental Science
- 1 August 2004
Abstract
Abstract In the first part of this study, theoretical analyses showed that the Gumbel distribution is quite unlikely to apply to hydrological extremes and that the extreme value…
Battle of extreme value distributions: A global survey on extreme daily rainfall
- S. Papalexiou, Demetris Koutsoyiannis
- Environmental Science
- 1 January 2013
Theoretically, if the distribution of daily rainfall is known or justifiably assumed, then one could argue, based on extreme value theory, that the distribution of the annual maxima of daily rainfall…
“Panta Rhei—Everything Flows”: Change in hydrology and society—The IAHS Scientific Decade 2013–2022
- A. Montanari, G. Young, V. Belyaev
- Environmental Science
- 30 May 2013
Abstract The new Scientific Decade 2013–2022 of IAHS, entitled “Panta Rhei—Everything Flows”, is dedicated to research activities on change in hydrology and society. The purpose of Panta Rhei is to…
Climate change, the Hurst phenomenon, and hydrological statistics
- Demetris Koutsoyiannis
- Environmental Science
- 1 February 2003
Abstract The intensive research of recent years on climate change has led to the strong conclusion that climate has always, throughout the Earth's history, changed irregularly on all time scales.…
The Hurst phenomenon and fractional Gaussian noise made easy
- Demetris Koutsoyiannis
- Computer Science
- 1 August 2002
Three simple and fast methods to generate fractional Gaussian noise, or good approximations of it, are proposed based on its studied properties.
Statistics of extremes and estimation of extreme rainfall: I. Theoretical investigation / Statistiques de valeurs extrêmes et estimation de précipitations extrêmes: I. Recherche théorique
- Demetris Koutsoyiannis
- Environmental Science
- 1 August 2004
Abstract
Abstract The Gumbel distribution has been the prevailing model for quantifying risk associated with extreme rainfall. Several arguments including theoretical reasoning and empirical…
Statistical analysis of hydroclimatic time series: Uncertainty and insights
- Demetris Koutsoyiannis, A. Montanari
- Environmental Science
- 1 May 2007
Analytical methods demonstrate by using analytical methods that the characteristics of temperature series, which appear to be compatible with the LTP hypothesis, imply a dramatic increase of uncertainty in statistical estimation and reduction of significance in statistical testing, in comparison with classical statistics.
Nonstationarity versus scaling in hydrology
- Demetris Koutsoyiannis
- Environmental Science
- 15 June 2006
One decade of multi-objective calibration approaches in hydrological modelling: a review
- A. Efstratiadis, Demetris Koutsoyiannis
- Materials Science
- 10 March 2010
The experience gained so far on multi-objective calibration of hydrological models is summarized by underlining the key perspectives offered by such approaches to improve parameter identification by linking the multi-criteria calibration approach with the concepts of uncertainty and equifinality.
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