000197272 001__ 197272
000197272 005__ 20190316235846.0
000197272 0247_ $$2doi$$a10.1061/(ASCE)HY.1943-7900.0000866
000197272 02470 $$2ISI$$a000334258300007
000197272 037__ $$aARTICLE
000197272 245__ $$aContinuous Long-Term Observation of Suspended Sediment Transport between Two Pumped-Storage Reservoirs
000197272 269__ $$a2014
000197272 260__ $$bAsce-Amer Soc Civil Engineers$$c2014$$aReston
000197272 300__ $$a9
000197272 336__ $$aJournal Articles
000197272 500__ $$a[954]
000197272 520__ $$aTransport of suspended sediment between the two reservoirs of a pumped-storage plant in Switzerland was monitored over an 8-month period. A turbidity probe was installed on the upstream end of the pressure shaft, in which real-time monitoring was ensured by automatic data acquisition and remote control. The suspended sediment concentration in the reservoirs varies considerably over the course of a year, with low particle loads in the winter, when the reservoirs are covered by ice and the catchment area is entirely covered by snow. In late spring, when snowmelt starts, the suspended sediment concentration increases and remains high until summer. The short-term evolution of the suspended sediment concentration was found to be correlated to the pumped-storage sequences, especially when the reservoir levels are low. Higher concentrations during pumping mode were observed for low levels in the lower reservoir, and low levels in the upper reservoir corresponded to higher sediment concentrations in turbine mode. Concentration ratios between pumping and turbine mode between 0.93 and 1.16 were observed. Periods with higher particle load were observed more frequently during pumping mode. Nevertheless, the suspended sediment balance due to pumped-storage operations is equilibrated, which indicates a high degree of correlation between the transported sediment volume and hydropower operation. Connecting the applied monitoring system in an existing plant control and management system would allow the plant operator to detect increased suspended sediment loads in the pressure shaft and to adapt the operation mode to actively manage reservoir sedimentation or to estimate and predict the long-term sediment balance.
000197272 6531_ $$aReservoir sedimentation
000197272 6531_ $$aSuspended sediment transport
000197272 6531_ $$aTurbidity measurement
000197272 6531_ $$aContinuous long-term monitoring
000197272 6531_ $$aPumped-storage hydropower plant
000197272 700__ $$0242668$$g147446$$aMüller, Michael
000197272 700__ $$0240404$$g101010$$aDe Cesare, Giovanni
000197272 700__ $$aSchleiss, Anton$$0241228$$g112841
000197272 773__ $$tJournal of Hydraulic Engineering
000197272 8564_ $$uhttps://infoscience.epfl.ch/record/197272/files/2014-954_Muller_DeCesare_Schleiss_Continuous_longterm_observation_of_suspended_sediment_Transport.pdf$$zn/a$$s11269519$$yn/a
000197272 909C0 $$xU10263$$0252079$$pLCH
000197272 909C0 $$pPL-LCH$$xU10263$$0255473
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000197272 917Z8 $$x206365
000197272 937__ $$aEPFL-ARTICLE-197272
000197272 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000197272 980__ $$aARTICLE