Difference between revisions of "Main Page"

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[[file:fithydrologo_large.png|thumb|300px]][[file:Flag_of_Europe.png|thumb|300px]]     
 
[[file:fithydrologo_large.png|thumb|300px]][[file:Flag_of_Europe.png|thumb|300px]]     
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=The FIThydro project=
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FIThydro addresses the decision support in commissioning and operating hydropower plants (HPP) by use of existing and innovative technologies. It concentrates on mitigation measures and strategies to develop cost-efficient environmental solutions and on strategies to avoid individual fish damage and enhancing population developments. Therefore HPPs all over Europe are involved as test sites. Read more about the FIThydro project on the [https://www.fithydro.eu/ official project website].
  
 
=Hydropower and fish: challenges=
 
=Hydropower and fish: challenges=
Hydropower is a very site-specific technology developed where the topography and hydrology are favourable. All hydropower plants require construction of a dam or weir, generally obstructing fish movements. Habitat are altered by imposed changes in flow and/or sediment transport and the set of impacts can be inter-related. The magnitude of the changes in flow is to a large degree determined by the size of the reservoir, making it possible to store water from period of abundant resources to periods of lower inflow. Biology and composition of the fish population is, however, unique to each site. As such, the environmental problems and the related measures are also very specific to each location, posing challenges to presenting generic measures viable to all possible sites, and often the solution will be a combination of measures.
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Hydropower is a very site-specific technology developed where the topography and hydrology are favorable. All hydropower plants require construction of a dam or weir, generally obstructing fish movements. Habitat are altered by imposed changes in flow and/or sediment transport and the set of impacts can be inter-related. The magnitude of the changes in flow is to a large degree determined by the size of the reservoir, making it possible to store water from period of abundant resources to periods of lower inflow. Biology and composition of the fish population is, however, unique to each site. As such, the environmental problems and the related measures are also very specific to each location, posing challenges to presenting generic measures viable to all possible sites, and often the solution will be a combination of measures.
  
In general, hydropower [[:category:types of problems|impacts]] on fish can be described as:
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In general, hydropower [[:category:types of problems|impacts]] on fish are divided into five categories on this wiki. Each of these challenges are briefly described, and then a catalogue of potential mitigation measures are presented.
  
#direct impacts
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#[[Habitat]]
#impacts on movements
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#[[Environmental flow]]
#impacts on habitat
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#[[Sediments]]
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#[[Downstream fish migration]]
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#[[Upstream fish migration]]
  
The direct impacts could be mortality or injury caused by turbine passage or flushing of sediments, while building a dam will introduce challenges with respect to upstream and downstream migration (impacts on movements). Changes in the natural flow and sediment regime will change the habitat condition, both in the short and long-time horizon.
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Habitat impacts can be caused directly by alterations in the river, such as flood banks or channeling, or indirectly through alterations in the flow/sediment regime. Environmental flow impacts are related to changes in the flow regime in the river, such as low flows, floods, and average flow. Changes here can directly impact migration patterns, as well as indirectly impact habitat conditions (e.g. sediment clogging, armoring). Sediment impacts can be caused by alterations to the sediment balance in the system, such as surplus or deficit of sediments (once again leading to clogging or armoring). Upstream and downstream migration are related to the physical barrier that fish encounter when a dam (and turbine) is built, which can be a challenge for migratory species.
 
 
=Decision Support System (DSS)=
 
In order to identify the risks, impacts, and appropriate mitigation measures, a [[Decision_support_system|decision support system]] has been (<span style="color:red">will be</span>) developed.
 
 
 
[[file:DSS_link.png|center|link=Decision_support_system|Click to go to DSS tool (this SHOULD go to the DSS tool in the future)]]
 
  
 
=What is the FIThydro wiki and how do I use it?=
 
=What is the FIThydro wiki and how do I use it?=
This wiki was created to help users implement the appropriate [[:category:measures|solutions/mitigation measures]] for environmental problems caused by hydropower production. The mitigation measures are classified according to various [[Classification table|parameters]], such as appropriate climatic regions, which species they are aimed at, which physical condition they address, etc. Each measure has a suggested procedure with recommended [[Methods,_tools,_and_devices|methods, tools, and devices]] for different stages of the implementation.
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This wiki was created to help users implement the appropriate [[:category:solutions|solutions/mitigation measures]] for environmental challenges caused by hydropower production. The mitigation measures are classified according to various [[Classification table|parameters]], such as appropriate climatic regions, which species they are aimed at, which physical condition they address, etc. Each measure has a suggested procedure with recommended [[Methods,_tools,_and_devices|methods, tools, and devices]] for different stages of the implementation. A number of [[:category:test cases|test cases]] are also presented, with links to applied and relevant solutions, methods, tools and devices. Additionally, information about studies on [[Policy and public acceptance]] and estimates of [[Costs of solutions|the cost of implementing mitigation measures]] are presented. Lastly, a [[Decision_support_system|Decision Support System]] (DSS) for selecting appropriate mitigation measures has been developed. The DSS synergizes with this wiki.  
  
 
[[file:wiki_overview.png|600px|center]]
 
[[file:wiki_overview.png|600px|center]]
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<font size=3 line-height=10><gallery widths=250px heights=250px>
 
<font size=3 line-height=10><gallery widths=250px heights=250px>
Habitat measures.jpg|link=[[Habitat]]|[[:file:Habitat measures.jpg|Photo]]: Ulrich Pulg<categorytree mode="pages" depth=0  namespaces="Main Category">Habitat measures</categorytree>  
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Habitat icon.png|link=[[Habitat]]|[[:file:Habitat icon.png|Photo]]: Ulrich Pulg<categorytree mode="pages" depth=0  namespaces="Main Category">Habitat measures</categorytree>  
 
E-flow_square.png|link=[[Environmental flow]]|[[:file:E-flow_square.png|Photo]]: Atle Harby<categorytree mode="pages" depth=0  namespaces="Main Category">Environmental flow measures</categorytree>  
 
E-flow_square.png|link=[[Environmental flow]]|[[:file:E-flow_square.png|Photo]]: Atle Harby<categorytree mode="pages" depth=0  namespaces="Main Category">Environmental flow measures</categorytree>  
sediments2_Square.jpg||link=[[Sediments]]|[[:file:sediments2_Square.jpg|Photo]]: NASA<categorytree mode="pages" depth=0 namespaces="Main Category">Sediment measures</categorytree>  
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sediments_icon.png||link=[[Sediments]]|[[:file:sediments_icon.png|Photo]]: NASA<categorytree mode="pages" depth=0 namespaces="Main Category">Sediment measures</categorytree>  
downstream_migration_square.jpg|link=[[Downstream fish migration]]|[[:file:downstream_migration_square.jpg|Photo]]: Tore Wiers<categorytree mode="pages" depth=0 namespaces="Main Category">Downstream fish migration measures</categorytree>  
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downstream_icon.png|link=[[Downstream fish migration]]|[[:file:downstream_icon.png|Photo]]: Tore Wiers<categorytree mode="pages" depth=0 namespaces="Main Category">Downstream fish migration measures</categorytree>  
Jumping_Salmon_300.jpg|link=[[Upstream fish migration]]|[[:file:Jumping_Salmon_300.jpg|Photo]]: Jerome Charaoui<categorytree mode="pages" depth=0 namespaces="Main Category">Upstream fish migration measures</categorytree>  
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upstream_icon.png|link=[[Upstream fish migration]]|[[:file:upstream_icon.png|Photo]]: Jerome Charaoui<categorytree mode="pages" depth=0 namespaces="Main Category">Upstream fish migration measures</categorytree>  
 
</gallery></font>
 
</gallery></font>
  
 
<!--The first step in this process is to identify what the problems actually are, and what they are caused by. These issues should be chosen from [[:category:classification tables|classification parameter values]] that have been consistently applied for each type of mitigation measure; for example, if there are issues with salmon spawning rates due to a lack of suitable substrate, choose the values "Salmon", "spawning", "substrate". Once the issues are determined, the user can search for the mitigation measure(s) that are appropriate for the given situation following the [[search instructions]].
 
<!--The first step in this process is to identify what the problems actually are, and what they are caused by. These issues should be chosen from [[:category:classification tables|classification parameter values]] that have been consistently applied for each type of mitigation measure; for example, if there are issues with salmon spawning rates due to a lack of suitable substrate, choose the values "Salmon", "spawning", "substrate". Once the issues are determined, the user can search for the mitigation measure(s) that are appropriate for the given situation following the [[search instructions]].
  
After identifying the appropriate mitigation measures, the user can learn more about them and how to implement them using the [[Methods, tools, and devices|methods, tools, and devices]] (MTDs) instructions on the [[:category:measures|mitigation measure]] pages.-->
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After identifying the appropriate mitigation measures, the user can learn more about them and how to implement them using the [[Methods, tools, and devices|methods, tools, and devices]] (MTDs) instructions on the [[:category:solutions|mitigation measure]] pages.-->

Latest revision as of 17:52, 27 October 2020

Fithydrologo large.png
Flag of Europe.png

The FIThydro project

FIThydro addresses the decision support in commissioning and operating hydropower plants (HPP) by use of existing and innovative technologies. It concentrates on mitigation measures and strategies to develop cost-efficient environmental solutions and on strategies to avoid individual fish damage and enhancing population developments. Therefore HPPs all over Europe are involved as test sites. Read more about the FIThydro project on the official project website.

Hydropower and fish: challenges

Hydropower is a very site-specific technology developed where the topography and hydrology are favorable. All hydropower plants require construction of a dam or weir, generally obstructing fish movements. Habitat are altered by imposed changes in flow and/or sediment transport and the set of impacts can be inter-related. The magnitude of the changes in flow is to a large degree determined by the size of the reservoir, making it possible to store water from period of abundant resources to periods of lower inflow. Biology and composition of the fish population is, however, unique to each site. As such, the environmental problems and the related measures are also very specific to each location, posing challenges to presenting generic measures viable to all possible sites, and often the solution will be a combination of measures.

In general, hydropower impacts on fish are divided into five categories on this wiki. Each of these challenges are briefly described, and then a catalogue of potential mitigation measures are presented.

  1. Habitat
  2. Environmental flow
  3. Sediments
  4. Downstream fish migration
  5. Upstream fish migration

Habitat impacts can be caused directly by alterations in the river, such as flood banks or channeling, or indirectly through alterations in the flow/sediment regime. Environmental flow impacts are related to changes in the flow regime in the river, such as low flows, floods, and average flow. Changes here can directly impact migration patterns, as well as indirectly impact habitat conditions (e.g. sediment clogging, armoring). Sediment impacts can be caused by alterations to the sediment balance in the system, such as surplus or deficit of sediments (once again leading to clogging or armoring). Upstream and downstream migration are related to the physical barrier that fish encounter when a dam (and turbine) is built, which can be a challenge for migratory species.

What is the FIThydro wiki and how do I use it?

This wiki was created to help users implement the appropriate solutions/mitigation measures for environmental challenges caused by hydropower production. The mitigation measures are classified according to various parameters, such as appropriate climatic regions, which species they are aimed at, which physical condition they address, etc. Each measure has a suggested procedure with recommended methods, tools, and devices for different stages of the implementation. A number of test cases are also presented, with links to applied and relevant solutions, methods, tools and devices. Additionally, information about studies on Policy and public acceptance and estimates of the cost of implementing mitigation measures are presented. Lastly, a Decision Support System (DSS) for selecting appropriate mitigation measures has been developed. The DSS synergizes with this wiki.

Wiki overview.png

Categories of mitigation measures

Click the image to go to the main article for each category. The mitigation measures for each category are listed in the drop-down menus, as well as in the main articles.