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Adnan, R.M.; Dai, H.-L.; Kisi, O.; Heddam, S.; Kim, S.; Kulls, C.; Zounemat-Kermani, M. |
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Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Modelling biochemical oxygen demand using improved neuro-fuzzy approach by marine predators algorithm |
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Journal Article |
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2023 |
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Environmental Science and Pollution Research |
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30 |
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41 |
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94312-94333 |
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Springer Berlin Heidelberg Berlin/Heidelberg |
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THL @ christoph.kuells @ adnan2023modelling |
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218 |
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Krüger, N.; Külls, C. |
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Modeling soil moisture variations for direct groundwater recharge estimation in the critical zone |
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Report |
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2023 |
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Copernicus Meetings |
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THL @ christoph.kuells @ kruger2023modeling |
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215 |
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Author |
Siarkos, I.; Latinopoulos, P. |
![goto web page (via DOI) doi](img/doi.gif)
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Modeling seawater intrusion in overexploited aquifers in the absence of sufficient data: application to the aquifer of Nea Moudania, northern Greece |
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Journal Article |
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Year |
2016 |
Publication |
Hydrogeology Journal |
Abbreviated Journal |
Hydrogeology J. |
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24 |
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2123–2141 |
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Groundwater flow, Seawater intrusion, Numerical modeling, Greece, Sensitivity analysis |
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Abstract |
In many coastal areas, overexploitation of groundwater resources has led both to the quantitative degradation of local aquifers and the deterioration of groundwater quality due to seawater intrusion. To investigate the behavior of coastal aquifers under these conditions, numerical modeling is usually implemented; however, the proper implementation of numerical models requires a large amount of data, which are often not available due to the time-consuming and costly process of obtaining them. In the present study, the investigation of the behavior of coastal aquifers under the lack of adequate data is
attempted by developing a methodological framework consisting of a series of numerical simulations: a steady-state, a false-transient and a transient simulation. The sequence and the connection between these simulations constitute the backbone of the whole procedure aimed at adjusting the various
model parameters, as well as obtaining the initial conditions for the transient simulation. The validity of the proposed methodology is tested through evaluation of the model calibration procedure and the estimation of the simulation errors (mean error, mean absolute error, root mean square error, mean relative error) using the case of Nea Moudania basin, northern Greece. Furthermore, a sensitivity analysis is performed in order to minimize the error estimates and thus to maximize the reliability of the models. The results of the whole procedure affirm the proper implementation of the developed methodology under specific conditions and assumptions due to the lack of sufficient data, while they give a clear picture of the aquifer’s quantitative and qualitative status. |
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Ilias Siarkos: isiarkos@civil.auth.gr; Pericles Latinopoulos latin@civil.auth.gr |
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School of Civil Engineering, Aristotle University of Thessaloniki, GR54124 Thessaloniki, Greece |
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IAH |
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Springer |
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English |
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1431-2174 |
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Hydrogeology; groundwater modelling, sea water intrusion |
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yes |
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MGRE @ redha.menani @ |
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52 |
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Author |
Wigley, T.M.L.; Plummer, L.N. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Mixing of carbonate waters |
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Journal Article |
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Year |
1976 |
Publication |
Geochimica et Cosmochimica Acta |
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40 |
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9 |
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989-995 |
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Abstract |
When mineral solutions of different compositions are mixed, the molalities and activities of individual ions in the mixture are often non-linear functions of their end-member values. This non-linearity is particularly significant in determining mineral saturation levels. Mixtures of saturated solutions may be either undersaturated or supersaturated depending on the end-member compositions and the physical conditions in which end-members and their mixtures exist. In carbonate solutions important non-linear effects occur due to redistribution of carbonate species. In extreme cases this causes mixture pH to be below both the end-member pH values. A simple but precise computer program (WATMIX) has been developed for calculating mixture composition for closed and open system mixing of arbitrary end-members. A number of mixing examples are considered which allow one to isolate three important processes leading to non-linear behaviour: the algebraic effect, the δPCO2 effect, and the ionic strength effect. |
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0016-7037 |
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THL @ christoph.kuells @ Wigley1976 |
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40 |
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Author |
Journel*, A.G.; Huijbregts, C.J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title ![sorted by Title field, descending order (down)](img/sort_desc.gif) |
Mining geostatistics |
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Book Whole |
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Year |
1978 |
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Academic Press London ; New York |
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0123910501 |
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Call Number |
CUT @ phaedon.kyriakidis @ Journel1978 |
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159 |
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