Résultats de la recherche (14 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • The application of palaeohydrology in river management
  • This paper reviews recent changes in river management. These changes are characterised by a move from the notion of rivers as stable equilibrium forms to one of dynamic responsive ecosystems. Palaeohydrology is shown to be capable of providing
  • important and relevant information to river managers. Furthermore a series of emerging frameworks for incorporating geomorphology in river management exist wherein palaeohydrological data and analysis can be directly interfaced with the river management
  • Palaeohydrology of the Seim River basin, Mid-Russian Upland, based on palaeochannel morphology and palynological data
  • This paper is aimed at analysis of the palaeoenvironmental conditions and causes for the palaeohydrological changes, and palaeohydrological reconstruction in the Seim River basin since the Late Pleniglacial. The Seim River system drains the western
  • slope of the Mid-Russian Upland into the Desna River, middle Dnepr basin.
  • Use of multi-proxy flood records to improve estimates of flood risk : Lower River Tay, Scotland
  • The AA. report on the development of a multi-proxy flood history for the River Tay, Scotland, drawing on the sediment archive of a major palaeochannel complemented by archival, historical and epigraphic flood records from the city of Perth
  • . This paper demonstrates that proxy flood records extending over 200 years can be successfully recovered from sediment stacks in palaeochannels adjacent to major rivers. The hypothesis that each local coarsening in the stack represents a flood signature which
  • 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
  • at both national and sub-national scales, and on catchments of different size, type and land-use history. The relative and varying roles of climate and land-use on river dynamics are considered and the value of the database for reconstructing past
  • hydrological events, as well as for predicting river response to future environmental change,is assessed.
  • Terminal Pleistocene braided to meandering transition in rivers of the Southeastern USA
  • with considerable methodological development, so that today it serves as a powerful research tool for investigating the spatial and temporal dynamics of Holocene river development and flooding in Great Britain. The improved analytical method is here applied
  • to the currently existing database by examining datasets of C 14 dated fluvial units from river basins that lie within and beyond the limits of Late Devensian glaciation.
  • Past hydrological events reflected in Holocene history of Polish rivers
  • Floodplain ; Hydrology ; Model ; Palaeoclimate ; Palaeohydrology ; River bed ; Scenario ; Slope gradient ; Watershed
  • Archaeology ; Climatic change ; Concept ; Europe ; Human impact ; Land use ; Model ; Rhine ; River bed ; Sediment budget ; Stream
  • . The A. distinguish the effects of heavy downpours, continuous rains and extreme rainy seasons, as well as snowmelt floods visible in transformation of slopes and river channels. This examination shows a random distribution in 20-th century with few clusterings
  • and it uses either observed or calculated meteorological parameters. The method is illustrated here in a reconstruction of daily flow series for the River Wye catchment above Rhayader, mid-Wales, for the period 1889-1998. The method makes use of observed
  • The accumulation of coarse-grained alluvia in the valley floors (the Bila Opava and the Bela valleys) dissecting the northeastern slope of the Praded massif exhibit braided river patterns in many places. This indicates the occurrence of large, short
  • . of known age on recently deglaciated terrain. Analysis of the systems of terraces and paleochannels of the proglacial rivers supported by lichenometric dating allows 3 periods of intensified fluvial activity to be distinguished for the Little Ice Age.
  • The Dneper valley carried away proglacial waters to the Black Sea during the maximum of the last glaciation. Dneper, having multiplied discharges, flowed in two branches of the valley. After the proglacial water supply ceased, the river incised