During a palaeoflood study of the Llobregat River in Catalonia, analysis of Cs 137 was carried out on slackwater flood deposits to obtain an improved flood chronology for the most recent flood sediments. The onset of measured caesium activity
in the sedimentary profiles permitted the deposits to be divided between those from floods that occurred before the mid-1950s and those from events after this period. Combining the information derived from the slackwater flood stratigraphy, the minimum discharge
estimates associated with the flood deposits, Cs 137 analysis and the instrumental peak discharge series, it was possible to identify the particular flood events responsible for the majority of the slackwater flood units.
The topographic data source of digital terrain models as a key element in the accuracy of hydraulic flood modelling
Bathymetry ; Catalonia ; Digital elevation model ; Flood ; Gerona ; Global Positioning System ; Model ; Roughness ; Spain ; Stream ; Topography
The effects of the topographic data source and resolution on the hydraulic modelling of floods were analysed. Seven digital terrain models (DTMs) were generated from three different altimetric sources : a global positioning system (GPS) survey
C 14 dating ; Climatic variability ; Flood ; Fluvial processes ; Fluvial terrace ; Geochronology ; Holocene ; Human impact ; Quaternary ; Spain
A database of radiocarbon dates from Late Holocene fluvial environments in Spain was critically analysed in order to obtain a fluvial chronology for this period. The principal types of depositional represented in the record were slackwater flood
regions slackwater flood deposits are valuable archives of climatic variability even during periods of increased human impact.
C 14 dating ; Data base ; Europe ; Flood ; Holocene ; Land use ; Palaeo-environment ; Palaeoclimate ; Palaeohydrology ; Poland ; Spain ; Stream ; United Kingdom ; Watershed
A comprehensive database of radiocarbon dated fluvial units in Great Britain, Poland and Spain has been compiled to investigate the relationship between environmental change, flooding and Holocene river dynamics. Data analysis has been undertaken