HYDROGEIOS: A semi-distributed GIS-based hydrological model for modified river basins

Efstratiadis, A; Nalbantis, I; Koukouvinos, A; Rozos, E; Koutsoyiannis, D

dc.contributor.author	Efstratiadis, A	en
dc.contributor.author	Nalbantis, I	en
dc.contributor.author	Koukouvinos, A	en
dc.contributor.author	Rozos, E	en
dc.contributor.author	Koutsoyiannis, D	en
dc.date.accessioned	2014-03-01T01:28:38Z
dc.date.available	2014-03-01T01:28:38Z
dc.date.issued	2008	en
dc.identifier.issn	1027-5606	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18887
dc.subject	Hydrologic Model	en
dc.subject	River Basin	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.classification	Water Resources	en
dc.subject.other	calibration	en
dc.subject.other	catchment	en
dc.subject.other	flow modeling	en
dc.subject.other	GIS	en
dc.subject.other	groundwater flow	en
dc.subject.other	hydrological cycle	en
dc.subject.other	hydrological modeling	en
dc.subject.other	measurement method	en
dc.subject.other	parameterization	en
dc.subject.other	river basin	en
dc.title	HYDROGEIOS: A semi-distributed GIS-based hydrological model for modified river basins	en
heal.type	journalArticle	en
heal.identifier.primary	10.5194/hess-12-989-2008	en
heal.identifier.secondary	http://dx.doi.org/10.5194/hess-12-989-2008	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The HYDROGEIOS modelling framework represents the main processes of the hydrological cycle in heavily modified catchments, with decision-depended abstractions and interactions between surface and groundwater flows. A semi-distributed approach and a monthly simulation time step are adopted, which are sufficient for water resources management studies. The modelling philosophy aims to ensure consistency with the physical characteristics of the system, while keeping the number of parameters as low as possible. Therefore, multiple levels of schematization and parameterization are adopted, by combining multiple levels of geographical data. To optimally allocate human abstractions from the hydrosystem during a planning horizon or even to mimic the allocation occurred in a past period (e. g. the calibration period), in the absence of measured data, a linear programming problem is formulated and solved within each time step. With this technique the fluxes across the hydrosystem are estimated, and the satisfaction of physical and operational constraints is ensured. The model framework includes a parameter estimation module that involves various goodness- of-fit measures and state-of-the-art evolutionary algorithms for global and multiobjective optimization. By means of a challenging case study, the paper discusses appropriate modelling strategies which take advantage of the above framework, with the purpose to ensure a robust calibration and reproduce natural and human induced processes in the catchment as faithfully as possible.	en
heal.publisher	COPERNICUS PUBLICATIONS	en
heal.journalName	Hydrology and Earth System Sciences	en
dc.identifier.doi	10.5194/hess-12-989-2008	en
dc.identifier.isi	ISI:000259986900003	en
dc.identifier.volume	12	en
dc.identifier.issue	4	en
dc.identifier.spage	989	en
dc.identifier.epage	1006	en