geocat.ch
Basis for determining Q347 flow rate
The Water Protection Act specifies how appropriate residual flows can be determined. This applies to new water withdrawals and also to existing withdrawals for which concessions have to be renewed. Anyone who withdraws water from a permanent (non-seasonal) watercourse - for power generation, irrigation or cooling purposes - requires a licence. This will only be granted if appropriate residual flows are maintained in the river- or streambed. The residual flow regulations are only applicable to new water withdrawals and to existing withdrawals when a concession expires and has to be renewed. The Q347 discharge is one of the fundamental parameters for setting minimum residual water flow. Measurements or suitable estimation methods are required to determine the Q347. The map “Grundlagen zur Bestimmung der Abflussmenge Q347” combines measured and modelled data. The modelled data represents rough estimates which can be improved by application of more advanced methods. In general, an estimate obtained in this way must be checked by performing a short-term measurement.
Simple
- Alternate title
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Basis for determining Q347
- Date (Creation)
- 2000-01-01
- Identifier
- ch.bafu.hydrologie-q347
Point of contact
- Topic category
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- I Inland waters
Extent
Extent
- Description
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Switzerland
))
- Maintenance and update frequency
- Unknown
- GEMET
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water (geographic)
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- geocat.ch
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FSDI Federal Spatial Data Infrastructure
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- geocat.ch
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opendata.swiss
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Resource constraints
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Language
- Deutsch
- Character encoding
- UTF8
- Distribution format
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ESRI File Geodatabase FileGDB (GDB)
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Digital transfer options
- OnLine resource
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Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
- OnLine resource
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ch.bafu.hydrologie-q347
WMS-FSDI service, layer "Basis for determining Q347"
Digital transfer options
- OnLine resource
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ch.bafu.hydrologie-q347
WMTS-FSDI service, layer "Basis for determining Q347"
Digital transfer options
Digital transfer options
- OnLine resource
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STAC Browser
Link for download
Digital transfer options
Digital transfer options
- OnLine resource
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RESTful API von geo.admin.ch
RESTful API from geo.admin.ch
- Geometric object type
- Point
- Reference system identifier
- EPSG:2056
Metadata
- Metadata identifier
- 83e6752a-e668-4ade-9ad5-fd9d555d35da
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Language
- Rumantsch
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/83e6752a-e668-4ade-9ad5-fd9d555d35da
- Date info (Creation)
- 2015-01-19T16:27:46Z
- Date info (Revision)
- 2026-04-20T09:44:02.772279Z
Metadata standard
- Title
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eCH-0271
