@inproceedings{PAR00007480,
  title = {{H}ydraulic management of filamentous algae in open-channel networks : case study in {S}outhern {F}rance},
  author = {{F}ovet, {O}. and {B}elaud, {G}illes and {L}ancar, {L}. and {L}itrico, {X}. and {B}aume, {J}.{P}. and {M}alaterre, {P}.{O}. and {G}enthon, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}eriphyton constitutes the benthic compartment of aquatic environments such as artificial channels which are specific eco-systems for many reasons. {F}irstly, they have to fulfill hydraulic performance and water quality objectives. {T}hese objectives may be affected by filling problems due to algal developments and sanitary risks linked to toxins secreted by {C}yanobacteria. {S}econd, compared to natural streams, artificial channels have a relatively simple geometry and their hydraulic variables are easier to monitor. {A}lso, cross regulators allow the managers to control discharges and water elevations. {P}eriphyton dynamics depend on several factors and hydrodynamic is one of the most crucial one. {I}n this article we analyze an original strategy for algal control currently used in a branch of the {C}anal de {P}rovence ({S}outh of {F}rance). {T}he management strategy consists of regular flushes causing increases of the bed shear stress from upstream to downstream and consequently algal filament cutting. {T}his is achieved by increasing the discharge at the upstream end of the branch. {W}e first show that turbidity can be used as an indicator for algal detachment. {T}hen, a detachment model is proposed and coupled with the hydrodynamic simulation of the system. {I}t can be fitted very satisfactorily on the turbidity measurements and can be used to improve the management strategy, such as reducing the discharge released.},
  keywords = {{HYDRODYNAMIQUE} ; {CANAL} {D}'{IRRIGATION} ; {ALGUE} ; {FILAMENTOUS} {PERIPHYTON} ; {IRRIGATION} {CANAL} ; {HYDRODYNAMICS} ; {SHEAR} {STRESS} ; {ECO}-{HYDRAULICS} ; {OPEN}-{CHANNEL} {FLOW}},
  numero = {},
  pages = {10  multigr.},
  booktitle = {},
  year = {2009},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00007480},
}