Hydropower dams (HOLAS 2)
Total (monthly, and 5 year average) discharge from hydropower dams (m3/s). Data includes the water that passes the turbines as well as the water not passing the turbines.
The data was made available by HELCOM Contracting Parties in response to data request. The data was received from Estonia, Finland and Sweden.
The activity was declared as not relevant in Denmark, Germany, Latvia, Lithuania and Poland.
Data contains only those hydropower dams that are situated closest to the Baltic coast (less than 40 km), are the first ones from the coast in the river network and have a direct connection to the Baltic Sea trough river.
Swedish data is a combination of actual measurements and modelling. Modelled data have been calculated with s-hype2012_version_3_0_0. These data are also presented online at http://vattenwebb.smhi.se/regulations/. Please note that data from 2015 is provisional and may be subject to revisions.
Attribute specification and units:
X_Long: X (East) coordinate point
Y_Lat: Y (North) coordinate point
Country: Country (EE=Estonia, FI=Finland, SE=Sweden)
ID: Name or ID number of the hydropower dam
AVG_year: A calculated yearly average discharge (m3/s) (2011-2015)
jan_2011 – dec_2015 : Monthly discharge (m3/s)
Simple
- Date (Creation)
- 2017-06-12
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/585a20d9-125f-4ac0-b515-699f28422a36
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GEMET - INSPIRE themes, version 1.0
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Utility and governmental services
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GEMET
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hydroelectric energy
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dam
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- Keywords
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MADS
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HOLAS2
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- Use constraints
- Other restrictions
- Other constraints
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Use constraints: Data can be used freely given that the source is cited (following creative commons license CC-BY). The source should be cited as: “HELCOM HOLAS II Dataset: Hydropower dams (2017)”.
- Access constraints
- Other restrictions
- Other constraints
- Access constraints: No limitations on public access.
- Spatial representation type
- Vector
- Metadata language
- English
- Topic category
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- Environment
- Structure
- Utilities communication
- Begin date
- 2011-01-01
- End date
- 2015-12-31
- Unique resource identifier
- EPSG:3035
- Distribution format
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ESRI Shapefile
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1.0
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ESRI Shapefile
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1.0
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- OnLine resource
- Download dataset ( WWW:LINK-1.0-http--link )
- OnLine resource
- Open in Map Viewer ( WWW:LINK-1.0-http--link )
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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The Estonian dataset is compilation of the outflow information received from the hydropower companies.
Data from Finland consist only an annual average (monthly discharge average is unavailable).
Regarding Swedish dataset, measurements have been done by both SMHI and hydropower companies. Modelled data have been validated against discharge measurements.
The dataset was approved by all HELCOM Contracting Parties in the HOLAS II Human activities data review process during first quarter of 2017 after corrections.
Dataset updated june 2017, regarding Estonian data. For the index calculation in HOLAS II, a previous version of this dataset was used.
National data provider
Estonia: Estonian Ministry of Environment
Finland: Finnish Environment Institute (Freshwater Centre)
Sweden: SMHI
- File identifier
- 585a20d9-125f-4ac0-b515-699f28422a36 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-03-03T09:09:28