Las crecidas en ramblas valencianas mediterráneas

Estudios Geográficos

Francesca Segura Beltrán²  Ana María Camarasa Belmote¹ 

[1] Departamento de Geografía. Universidad de Alcalá de Henares (Madrid);Departamento de Geografía. Universitat de Valencia.

关键词: ríos efímeros;    cuencas de drenaje;    avenidas súbitas;    intensidad de la lluvia;    distribución espacial de la lluvia;    pérdidas de caudal;    courses d';    écoulement éphémère;    intensité de pluie;    infiltration;    crues méditerranées;   

DOI  :  

学科分类：自然科学（综合）

来源: Estudios Geograficos

【 摘 要 】

This paper takes into account the characterisation of ephemeral stream hydrology from Mediterranean environments. The heavy floods that these countries suffer are due to firstly, the physical watershed features (steep slopes, scarced vegetation cover and thin soils) and, secondly, to the intense and variable rainfall. Large quantities of precipitation fall in a matter of hours, or even minutes, over very steep catchments, causing catastrophic flash-floods, with very pointed hydrographs and short time lags. Using hydrological daily data from the Rambla de la Viuda basin and five-minute data from both Barranc de Carraixet and Rambla de Poyo basins, we have analysed the rainfall- runoff processes during flood events in theses ephemeral streams.

【 授权许可】

Unknown