Estimación de curvas IDF para tormentas de larga duraciónen la cuenca del río Gualeguay en la provincia de Entre Ríos
Based on the collection of rainfall data available in the province of Entre Ríos, using a Geographic Information System (GIS) as a tool, in this case the QGIS software, and taking 30 years (1986-2016) as a recording period, annual average values of long-term storms were studied for the Gualeguay riv...
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| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | español |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dialnet.unirioja.es/servlet/oaiart?codigo=8794717 |
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| Sumario: | Based on the collection of rainfall data available in the province of Entre Ríos, using a Geographic Information System (GIS) as a tool, in this case the QGIS software, and taking 30 years (1986-2016) as a recording period, annual average values of long-term storms were studied for the Gualeguay river basin, which drains an area of 21.549 km2.
54 representative stations were selected, whose data were analyzed, completed and validated for the generation of a fictitious rain gauge representative of the Average Areal Precipitation (PMA) of the basin. A frequency analysis was carried out with AFMULTI software which intensities were determined for the annual maximum average areal precipitation series (PMAMA) that allowed estimating the parameters of the mathematical expressions that define the Intensity Duration Frequency (IDF) curves, for the different recurrence periods analyzed through the ARHYMO software. This procedure wasreplicated for 6 sub-basins, also estimating a family of IDF curves for each of them. The IDF curves defined with thismethodology allow to obtain design storms that consider the spatial distribution of rainfall. The estimation of design storms from IDF curves is a fundamental variable for the determination of peak design flows forinfrastructure projects such as bridges, communication roads, flood defenses among other works that affect large extensions of the province. Having IDF of the region, allows more efficient designs, adjusted to local conditions |
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