Sensitivity of the water quality model to the frequency of input data

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Title:Sensitivity of the water quality model to the frequency of input data
Creators:
Růžička, Martin; ruzickam at esnet dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Kafková, Dagmar; kafkova at ih dot cas dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Balejová, Marcela; balejova at ih dot cas dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 50, 4, pp. 300-310
Uncontrolled Keywords:Water Quality, Mathematical Modelling, Reservoir Ecosystem, Frequency of Input Data

Abstract

The object of presented article is to demonstrate how the frequency of input data can affect the results of mathematical modelling of reservoir ecosystems. The study was done for Římov Reservoir, a water supply reservoir in the south of Bohemia. The 2-D water quality model CE-QUAL-W2 was used for the simulation. Among all input data only the inflow temperature and meteorological data have significant daily variation. For this reason the study focuses to the influence of frequency of these two data sets on the simulation results. The simulations were effectuated with data measured as hourly averages, as daily averages and three times a day and the simulation results were statistically evaluated. It is shown that in common hydrological and meteorological conditions the simulation mean error is in acceptable limits, only in case of more important discharges and inflow temperatures they become more significant. The study leads to the conclusion that it is not necessary to try to get the data measured with high frequency and that in the most cases the simulation using daily averages of input data is sufficient.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Sensitivity of the water quality model to the frequency of input data
Translated title:Citlivost modelu kvality vody na frekvenci vstupu dat
Creators:
Růžička, Martin; ruzickam at esnet dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Kafková, Dagmar; kafkova at ih dot cas dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Balejová, Marcela; balejova at ih dot cas dot cz; Ústav pro hydrodynamiku AV ČR, Pod Paťankou 5, 166 12 Praha 6, Česká republika
Uncontrolled Keywords:Water Quality, Mathematical Modelling, Reservoir Ecosystem, Frequency of Input Data
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:50
Number:4
Page Range:pp. 300-310
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:6130
Item Type:Article
Deposited On:25 Jun 2010 17:50
Last Modified:25 Jun 2010 15:50

Citation

Růžička, Martin; Kafková, Dagmar; Balejová, Marcela (2002) Sensitivity of the water quality model to the frequency of input data. Journal of Hydrology and Hydromechanics, 50 (4). pp. 300-310. ISSN 0042-790X

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