文章基本信息

标题：Las crecidas en ramblas valencianas mediterráneas
本地全文：下载
作者：Ana María Camarasa Belmote ; Francesca Segura Beltrán
期刊名称：Estudios Geográficos
印刷版ISSN：0014-1496
电子版ISSN：1988-8546
出版年度：2001
卷号：62
期号：245
页码：649-674
DOI：10.3989/egeogr.2001.i245.270
语种：Spanish
出版社：Consejo Superior de Investigaciones Científicas
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.
关键词：ephemeral streams drainage basins;flash flood;rainfall intensity;infiltration;discharge losses;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