Analyse non linéaire des récessions de l'écoulement de base dans des bassins versants à écoulements intermittents

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschung


Discharge in most rivers consists mainly of baseflow exfiltrating from shallow groundwater reservoirs, while surface or other direct flows cease soon after rain storms or snowmelt. Analysis of observed baseflow recessions of two rivers in Turkey with intermittent flows and different geographical and climatic characteristics yielded nonlinear storage-outflow relationships of the highly seasonal aquifers. Baseflow separation was carried out using a nonlinear reservoir algorithm. Baseflow seasonality is related to the hydro-climatic conditions influencing groundwater recharge and evapotranspiration of groundwater. As intermittent streams generally have zero flows in the dry season, calibration of recession parameters is in many cases a complicated task.
Titel in ÜbersetzungNonlinear baseflow recession analysis in watersheds with intermittent streamflow
ZeitschriftHydrological Sciences Journal
Seiten (von - bis)226-237
Anzahl der Seiten12
PublikationsstatusErschienen - 01.03.2011