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| Titel |
Portrayal of fuzzy recharge areas for water balance modelling – a case study in northern Oman |
| VerfasserIn |
A. Gerner, N. Schütze, G. H. Schmitz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Proceedings of the 14th Workshop on Large-scale Hydrological Modelling ; Nr. 31 (2012-06-16), S.1-7 |
| Datensatznummer |
250017303
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| Publikation (Nr.) |
 copernicus.org/adgeo-31-1-2012.pdf |
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| Zusammenfassung |
The research project IWAS Oman aims at implementing integrated water
resources management (IWRM) to a pilot area in Al Batinah, Oman. This
requires – amongst others – a realistic assessment of groundwater recharge
to the alluvial aquifer which obviously has to be based upon the extension
of recharge areas. In this context, the subsequent investigation focuses on
the role of vagueness as regards the portrayal of the areas that provide
water for particular aquifers. For that purpose, concepts of fuzziness in
spatial analysis are applied to describe possible extents of recharge areas.
In general, any water assessment is based on clearly delineated boundaries.
However, in many cases, aquifer recharge areas are not clearly defined due
to the nature of the study area. Hence, surfaces indicating a gradual
membership to the recharge area of a particular aquifer are used in this
investigation. These surfaces, which are based on available qualitative
information, visualise a potential range of spatial extension. With regard
to water balance calculations, functional relationships in tabular form are
derived as well. Based on a regionalisation approach providing spatially
distributed recharge rates, the corresponding recharge volume is calculated.
Hence, this methodology provides fuzzy input data for water balance
calculations. Beyond the portrayal of one singular aquifer recharge area,
this approach also supports the complementary consideration of adjacent
areas. |
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