Calibration of a semi-distributed model for conjunctive simulation of surface and groundwater flows

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

dc.contributor.author	Rozos, E	en
dc.contributor.author	Efstratiadis, A	en
dc.contributor.author	Nalbantis, I	en
dc.contributor.author	Koutsoyiannis, D	en
dc.date.accessioned	2014-03-01T01:53:53Z
dc.date.available	2014-03-01T01:53:53Z
dc.date.issued	2004	en
dc.identifier.issn	0262-6667	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27136
dc.subject	conjunctive surface and groundwater use	en
dc.subject	Thornthwaite model	en
dc.subject	multi-cell model	en
dc.subject	global optimization	en
dc.subject	evolutionary annealing-simplex algorithm	en
dc.subject	hydrological simulation	en
dc.subject.classification	Water Resources	en
dc.subject.other	RAINFALL-RUNOFF MODELS	en
dc.subject.other	GLOBAL OPTIMIZATION	en
dc.subject.other	AUTOMATIC CALIBRATION	en
dc.subject.other	HYDROLOGIC-MODELS	en
dc.subject.other	SIMPLEX-METHOD	en
dc.subject.other	UNCERTAINTY	en
dc.subject.other	ALGORITHMS	en
dc.subject.other	MULTIPLE	en
dc.subject.other	HYBRID	en
dc.title	Calibration of a semi-distributed model for conjunctive simulation of surface and groundwater flows	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	A hydrological simulation model was developed for conjunctive representation of surface and groundwater processes. It comprises a conceptual soil moisture accounting module, based on an enhanced version of the Thornthwaite model for the soil moisture reservoir, a Darcian multi-cell groundwater flow module and a module for partitioning water abstractions among water resources. The resulting integrated scheme is highly flexible in the choice of time (i.e. monthly to daily) and space scales (catchment scale, aquifer scale). Model calibration involved successive phases of manual and automatic sessions. For the latter, an innovative optimization method called evolutionary annealing-simplex algorithm is devised. The objective function involves weighted goodness-of-fit criteria for multiple variables with different observation periods, as well as penalty terms for restricting unrealistic water storage trends and deviations from observed intermittency of spring flows. Checks of the unmeasured catchment responses through manually changing parameter bounds guided choosing final parameter sets. The model is applied to the particularly complex Boeoticos Kephisos basin, Greece, where it accurately reproduced the main basin response, i.e. the runoff at its outlet, and also other important components. Emphasis is put on the principle of parsimony which resulted in a computationally effective modelling. This is crucial since the model is to be integrated within a stochastic simulation framework.	en
heal.publisher	IAHS PRESS, INST HYDROLOGY	en
heal.journalName	HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES	en
dc.identifier.isi	ISI:000224039600005	en
dc.identifier.volume	49	en
dc.identifier.issue	5	en
dc.identifier.spage	819	en
dc.identifier.epage	842	en