De Waele, Jo Hilaire Agnes and Martina, Mario L. V. and Sanna, Laura and Cabras, Salvatore and Cossu, Quirico Antonio (2010) Flash flood hydrology in karstic terrain: Flumineddu Canyon, central-east Sardinia. Geomorphology, Vol. 120 (3-4), p. 162-173. ISSN 0169-555X. Article.
Full text not available from this repository.
In the last five winters (2004–2008) several exceptional meteorological events producing flash floods have been registered in central-east Sardinia. The first of these (December 2004) was the most severe and caused important geomorphic changes in the Riu Flumineddu watershed where the influence of human activity is limited. The hydrological characterisation of this flood is extremely difficult because of the lack of streamflow gauges and the relative paucity of meteorological stations in the region. Peak discharge of the fluviokarstic Riu Flumineddu Canyon has been estimated based on a distributed hydrological model (TOPKAPI) and on empirical methods based on geomorphic and sedimentological observations. The comparison between the results derived from these independent methods allows us to obtain the best possible estimate of peak discharge. Differences between modelled and measured peak flows can be attributed to water losses and/or gains along the river channel from interactions with the underground karst drainage network.
I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore
Repository Staff Only: item control page