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• By-passing sediments
  [[file:sediment_bypass_locations.png|thumb|250px|Figure 1: Sediment pass-by tunnel with two different locations of the intake: a) intake locate ...ss. Consequently, sediments are not transported past the dam, resulting in sediment starvation in the downstream river reach. Lack of sediments can induce seve
  6 KB (838 words) - 10:03, 26 October 2020
• Off-channel reservoir storage
  ...le sediment-laden water is flowing through the river. c) Sediment by-pass: sediment-laden waters are diverted through a bypass tunnel and released downstream t ...nsequently, sediments are not transported downstream the dam, resulting in sediment starvation in the downstream river. Lack of sediments can induce severe mor
  4 KB (563 words) - 10:03, 26 October 2020
• Sediments
  ...s a barrier in the hydrological system as they interrupt the continuity of sediment transport through rivers systems. Sediments are trapped in reservoirs and r ...s particularly impacted the sediment cycle by accelerating the delivery of sediment to rivers and increasing the quantity of smaller particle sizes. Excess of
  8 KB (1,067 words) - 14:10, 9 October 2020
• Sediment sluicing
  .... Prior to sluicing, the reservoir is drawn down, and gates are open. High sediment-laden waters flow through the gates.]] Reservoir sluicing aims at passing sediment through the dam without allowing deposition. In contrast to flushing which
  5 KB (786 words) - 10:01, 26 October 2020
• Drawdown reservoir flushing
  ...voir and reduce its storage capacity. In geographical areas with very high sediment yields, reservoirs can be filled with sediments after some years of operati ...e level. However, in large rivers with run-of-the-river hydropower plants, sediment flushing does not necessarily require a complete stop of power production.
  7 KB (1,127 words) - 10:03, 26 October 2020
• Mechanical removal of fine sediments (dredging)
  ...Similarly, in some rivers, regulation has strongly reduced the flow while sediment yield has not been altered, leading to an exceed of fine sediments in the r ...to the river bank and adapted movements around the removal site are simple measures to integrate to the overall planning of fine sediments dredging.
  2 KB (373 words) - 10:03, 26 October 2020
• Minimizing sediment arrival to reservoir
  Natural variations in sediment concentration occur over days, weeks, seasons and years. They are induced b ...of sediments in water can be implemented to improve fish habitat quality. Measures consisting in reducing the amount of sediments entering the reservoir have
  5 KB (670 words) - 10:03, 26 October 2020
• Schiffmühle test case
  ...body. The river has a moderate ecological potential. Various measures for sediment control, fish migration, flow changes, habitat in-channel and morphology of ===Sediment management===
  9 KB (1,372 words) - 15:44, 30 September 2020
• Costs of solutions
  ...ed with mitigation according to the categories of habitat, fish migration, sediment and flow were collected by consulting FIThydro partners via a questionnaire ...res. The values should therefore be interpreted as the ranges of costs for measures, rather than precise costs. The range estimates are based on case studies f
  16 KB (2,008 words) - 14:06, 9 October 2020
• Main Page
  ...use of existing and innovative technologies. It concentrates on mitigation measures and strategies to develop cost-efficient environmental solutions and on str ...ble to all possible sites, and often the solution will be a combination of measures.
  6 KB (824 words) - 15:08, 27 March 2023
• Hydropower and policy
  ...ration of 'status' in a water body. Where this is not possible, mitigation measures should be applied. programme of measures to tackle significant pressures on water bodies, including among others tho
  26 KB (3,617 words) - 15:57, 11 August 2020
• Cleaning of substrate - ripping, ploughing and flushing
  ...re regulation) of maybe 10 years or more might be needed to remobilise the sediment. ...es use of an excavator equipped with a special claw that will mobilise the sediment, and it releases the fine material that is flushed away with the natural fl
  6 KB (921 words) - 10:04, 26 October 2020
• Decision support system
  ...and risk assess, those proposals whilst identifying appropriate mitigation measures to address the impact of both new and existing HPP schemes. The framework l ...assess those proposals and, additionally, identify appropriate mitigation measures to address the impact of an existing scheme or portfolio of existing scheme
  10 KB (1,468 words) - 11:57, 27 October 2020
• Mitigating reduced flood peaks, magnitudes, and frequency
  ...iverables the sediment measure is referred to as "Hydraulic conditions for sediment transport". ...out finer sediment fractions. In later sections of this document, habitat measures to refresh the substrate have been described, which will reinstate the natu
  5 KB (814 words) - 10:03, 26 October 2020
• Sediment simulation in intakes with Multiblock option (SSIIM)
  SSIIM is a numerical model to simulate the hydraulics and sediment transport including bed changes as well as various other parameters related ...tation to the most complex one, when combining unsteady flow with multiple sediment sizes and wetting and drying of parts of the geometry.
  3 KB (502 words) - 14:23, 1 June 2020
• Freudenau test case
  ...iameter of 7.5 m the turbines rank among the biggest in Europe. Ecological measures include the water supply to the New and Old Danube, new biotopes, and an ec ...for designation as HMWB ((heavily modified waterbody) are manifold and any measures to reach the good ecological status have significant adverse effects on hyd
  12 KB (1,913 words) - 13:03, 27 October 2020
• HEC-RAS
  ...The current version allows users to perform 1D/2D unsteady flow modelling, sediment transport/mobile bed computations, and water temperature/water quality mode ...hydraulic structures design and analysis (e.g. bridges, weirs, culverts), sediment transport studies, scour/deposition analysis, dam break analysis (e.g. timi
  8 KB (1,212 words) - 13:38, 29 September 2020
• Mitigation requirements for hydropower plants
  When planning mitigation measures for new or existing hydropower plants, the mitigation requirements based on *gravel transport (sediment), and
  6 KB (786 words) - 14:49, 14 September 2020
• Placement of stones in the river
  Note that this measure is included in both the habitat and sediment categories. ...ter juvenile fish. Combined with changes in the reduction in large floods, sediment dynamics and clogging of the substrate, shelter can be the limiting factor
  6 KB (973 words) - 10:03, 26 October 2020
• Placement of spawning gravel in the river
  Note that this measure is included in both the habitat and sediment categories. River regulations often change the natural flow regime and the sediment connectivity, introducing changes to the substrate composition both in the
  11 KB (1,652 words) - 11:45, 16 March 2021
• Bedload monitoring system
  ...ble. Instead, the system was calibrated in the field by repeatedly dumping sediment samples of known grain size distribution and volume upstream of the vortex ...of an additional accelerometer sensor, given that appropriate calibration measures are taken.
  7 KB (1,106 words) - 11:57, 30 September 2020
• Shelter measurements
  ...png|thumb|500px|Figure 1: Juvenile salmon in the upper layers of river bed sediment (Forseth et al., 2014).]] ...almon seeks shelter in the free spaces of the upper layers of the riverbed sediment (Figure 1). The existence and size of such openings to be used as shelter i
  5 KB (837 words) - 08:44, 30 September 2020
• Habitat
  ...power operations impact rivers, and also in designing efficient mitigating measures. ...also determined by changes in transport of sediments from upstream areas (sediment connectivity) and the changes in habitat qualities related to substrate mus
  4 KB (697 words) - 13:22, 27 October 2020
• TELEMAC
  ...modules can be coupled to Sisyphe, the morphological module, representing sediment transport. Figures 1-4 provide an overview of some selected modules. For co =Relevant mitigation measures and test cases=
  4 KB (530 words) - 18:17, 30 September 2020
• Bottom-type intakes (Coanda screen, Lepine water intake, etc)
  ...tom-type, also called Tyrolean intakes, particularly on streams with great sediment transport and sites with complex access. In France, we count many examples ...nda screen is planned as a conventional dam and intake. A hydrological and sediment analysis must be conducted to investigate the river discharge over time and
  5 KB (823 words) - 10:00, 26 October 2020
• Cumulative impact assessment
  ...nge in hydrology (duration, frequency and amplitude of the hydrograph) and sediment delivery or size of impoundment etc. on river ecosystems. Biological sensit *ABUNDANCE -measures of potential for biological productivity
  7 KB (951 words) - 10:53, 26 October 2020
• Fish refuge under hydropeaking conditions
  ...the impacts of hydropeaking in flume conditions and to propose mitigation measures accordingly. Adapted from Costa et al. (2019).]] ...ure the utility of the structures as flow-refuges for fish. The mitigation measures here presented are lateral refuges, specifically lateral deflectors and ove
  14 KB (1,950 words) - 10:03, 26 October 2020
• Bannwil test case
  ...r temperature. The river has a moderate ecological potential. Measures for sediment control, fish migration, flow changes, habitat in-channel and morphology of There is no specific measures implemented at HPP Bannwil. Fish can pass through the turbines and/or over
  7 KB (1,105 words) - 14:03, 8 June 2021
• Construction of off-channel habitats
  ...ration (lateral connectivity), incision of the main channel due to altered sediment regime or channelization or other reasons for disconnection of oxbows, side Habitat measures in regulated rivers must often be maintained unless the natural functions r
  3 KB (515 words) - 10:04, 26 October 2020
• Fishways for eels and lampreys
  ...re hand-tools more than heavy equipment. Depending of the site, removal of sediment, branches, logs and floating debris in pools and fishway entrance is common *Environment Agency, UK. 2011. Screening at intakes and outfalls: measures to protect eel. s.l. : (www.environment-agency.gov.uk)., 2011. p. 129.
  5 KB (771 words) - 10:02, 26 October 2020
• Suggested and intended improvements
  Add articles for removal of bank protection and removal of debris (sediment measures). ...h solutions work well together, add tables to Solutions articles for which measures it can be combined with.
  1 KB (232 words) - 14:47, 26 January 2021
• 3D fish tracking system
  ...ant illumination of the flow, camera distortion, air bubbles and suspended sediment and humid conditions for the cameras. =Relevant mitigation measures and test cases=
  8 KB (1,168 words) - 15:44, 2 October 2020
• BASEMENT
  ...nsport and an advection-diffusion approach with source terms for suspended sediment transport. Mentionable special features of the software are arbitrary combi =Relevant mitigation measures and test cases=
  3 KB (454 words) - 08:33, 22 January 2020
• Dilution gauging
  ...ends on several factors: chemical characteristics of the water, suspended sediment, distance between the injection and measuring section, type of flow to be m =Relevant mitigation measures and test cases=
  4 KB (661 words) - 15:25, 11 April 2020
• Acoustic Doppler current profiler (ADCP)
  ...), habitat quality assessment and modelling, hydro-morphologic surveys and sediment studies. =Relevant mitigation measures and test cases=
  8 KB (1,161 words) - 15:46, 2 October 2020
• Structure from motion (SfM)
  =Relevant mitigation measures and test cases= {{Suitable measures for 3D fish tracking system}}
  8 KB (1,244 words) - 07:36, 30 September 2020
• Pool-type fishways
  ...ent, but casting of concrete is typical. Depending of the site, removal of sediment, branches, logs and floating debris in pools and fishway entrance is common [[category:Upstream fish migration measures]][[category:Solutions]]
  5 KB (788 words) - 10:01, 26 October 2020
• Baffle fishways
  ...ment but casting of concrete is typical. Depending of the site, removal of sediment, branches, logs and floating debris in pools and fishway entrance is common [[category:Upstream fish migration measures]][[category:Solutions]]
  4 KB (540 words) - 10:03, 26 October 2020
• Vertical slot fishways
  ...ent, but casting of concrete is typical. Depending of the site, removal of sediment, branches, logs and floating debris in pools and fishway entrance is common [[category:Upstream fish migration measures]][[category:Solutions]][[Category:Enhanced in FIThydro]]
  9 KB (1,440 words) - 10:40, 26 January 2021