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| Titel |
Physical models for classroom teaching in hydrology |
| VerfasserIn |
A. Rodhe |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 9 ; Nr. 16, no. 9 (2012-09-03), S.3075-3082 |
| Datensatznummer |
250013454
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| Publikation (Nr.) |
 copernicus.org/hess-16-3075-2012.pdf |
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| Zusammenfassung |
| Hydrology teaching benefits from the fact that many important processes can
be illustrated and explained with simple physical models. A set of mobile
physical models has been developed and used during many years of lecturing
at basic university level teaching in hydrology. One model, with which many
phenomena can be demonstrated, consists of a 1.0-m-long plexiglass container
containing an about 0.25-m-deep open sand aquifer through which water is
circulated. The model can be used for showing the groundwater table and its
influence on the water content in the unsaturated zone and for quantitative
determination of hydraulic properties such as the storage coefficient and
the saturated hydraulic conductivity. It is also well suited for discussions
on the runoff process and the significance of recharge and discharge areas
for groundwater. The flow paths of water and contaminant dispersion can be
illustrated in tracer experiments using fluorescent or colour dye. This and
a few other physical models, with suggested demonstrations and experiments,
are described in this article. The finding from using models in classroom
teaching is that it creates curiosity among the students, promotes
discussions and most likely deepens the understanding of the basic
processes. |
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