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Report of STAHY session at EGU 2011

The STAHY Working group co-sponsored the session HS7.5/NP6.7 “Hydroclimatic stochastics” Convener: Demetris Koutsoyiannis, Co-Conveners: Alin Andrei Cârsteanu & Salvatore Grimaldi.
The session involved 6 oral contributions and 11 posters (listed at the end of the report) and was attended by more than 250 people.
All the authors delivered interesting presentations underlined by a rich discussion.

Particularly interesting it was the solicited lecture given by Prof. Robin T. Clarke from the Instituto de Pesquisas Hidráulicas, Universidade Federal do Rio Grande do Sul, Brazil. He underlined the importance of an appropriate application of statistical methods in hydro-climatological analysis. Particular emphasis was given to the role of spatial correlation in trend analysis of group of time series.

I would like to mention also the nice presentation (double in one) given by two students (Dimosthenis Tsaknias and Dimitris Bouziotas) about temperature and rainfall extremes.

Vienna, April 4th, 2011
Salvatore Grimaldi


List of Oral and Poster contributions
(with links to the pdf presentation files)

Oral Session

Robin Thomas Clarke
"A critique of some aspects of statistical usage in hydroclimate research". (solicited)
see the presentation

Klaus Fraedrich
"A minimalist model of terminal lakes"

Susana Barbosa
"Aggregation and stochastic features of high-frequency hydroclimatic time series"
see the presentation

Federico Lombardo, Elena Volpi, and Demetris Koutsoyiannis
"Theoretical and empirical comparison of stochastic disaggregation and downscaling approaches for rainfall time series"
see the presentation

Dimosthenis Tsaknias, Dimitris Bouziotas, Antonis Christofides, Andreas Efstratiadis, and Demetris Koutsoyiannis
"Statistical comparison of observed temperature and rainfall extremes with climate model outputs"
see the presentation

Simon-Michael Papalexiou and Demetris Koutsoyiannis
"A worldwide probabilistic analysis of rainfall at multiple timescales based on entropy maximization"
see the presentation

Poster Session


Yannis Dialynas, Stefanos Kozanis, and Demetris Koutsoyiannis
"A computer system for the stochastic disaggregation of monthly into daily hydrological time series as part of a three-level multivariate scheme"
see the poster

Simon-Michael Papalexiou and Demetris Koutsoyiannis
"Entropy maximization, p-moments and power-type distributions in nature"
see the poster

Panayiotis Dimitriadis, Demetris Koutsoyiannis, Christian Onof, and Katerina Tzouka
"Multidimensional Hurst-Kolmogorov process for modelling temperature and rainfall fields"
see the poster

Demetris Koutsoyiannis, Stefanos Kozanis, and Hristos Tyralis
"A general Monte Carlo method for the construction of confidence intervals for a function of probability distribution parameters"
see the poster

Satoshi Watanabe, Taikan Oki, and Shinjiro Kanae
"Evaluations of bias-correction methods for monthly temperature and precipitation data by multiple GCM outputs"

Yuan-Chien Lin, Hwa-Lung Yu, Tsang-Jung Chang, and Yih-Chi Tan
"Modeling of space-time typhoon tracks in the vicinity of Taiwan by generalized linear model"

Po-Lin Lin, Hwa-Lung Yu, and Bellie Sivakumar
"Investigating space-time patterns of rainfall in I-Lan (Taiwan) by hierarchical clustering and correlation dimension methods"

Sarann Ly, Eléonore Beckers, Catherine Charles, and Aurore Degré
"Effects of different spatial interpolators on the estimate of extreme precipitation"
see the poster

Ferdinand Beck and András Bárdossy
"NiedSim-Klima: Generating Rainfall Time-Series of High Temporal Resolution under Future Climate Conditions"
see the poster

Dirk Schlabing, Maria Magdalena Eder, Marieke Frassl, Karsten Rinke, and Andras Bardossy
"A Vector-Autoregressive "co-shiftable" Weathergenerator for Hydrodynamic Modeling of Lakes"
see the poster

Irai A. Berdeja-Sotelo, Alin A. Carsteanu, Jorge J. Castro, Khalidou M. Ba, and Carlos Diaz-Delgado
"Qualitative statistics of rainfall in Mexico City"


SOME PICTURES FROM THE SESSION (unfortunately many pictures are missed because too dark or too far)

Robin T. Clarke during the solicited lecture


Susana Barbosa during the oral presentation


Yannis Dialynas,  Stefanos Kozanis & Demetris Koutsoyiannis

Simon-Michael Papalexiou while explain his poster to an EGU participant


Panayiotis Dimitriadis


Stefanos Kozanis & Hristos Tyralis


Yuan-Chien Lin (author) & Po-Lin Chen (EGU participant)


Ferdinand Beck


Dirk Schlabing & Magdalena Eder



Ministero dell'Ambiente e della Tutela del Territorio e del Mare

Institute for Environmental Protection and Research

 Honors Center of Italian Universities - H2CU 
Sapienza University of Rome

University of Tuscia,
Viterbo, Italy


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