geocat.ch
Assessment of the Biological Water Status: Diatoms
Within the National Surface Water Quality Monitoring Programme (NAWA), water quality is recorded jointly by the federal and cantonal authorities at around 100 monitoring stations. The biological water status is assessed on the basis of diatom investigations by the diatom module in the Modular Step Procedure (www.modul-stufen-konzept.ch). The assessment system is linked to nutrient parameters such as ammonium, nitrite and total phosphorus. Diatoms are single-cell algae which live in both fresh and salt water and occasionally even on land. They are used as bioindicators of water quality because they occur all year round in all rivers and streams and their reaction to environmental changes is well known.
Simple
- Alternate title
-
Diatoms
- Date (Creation)
- 2014-03-26
- Identifier
- ch.bafu.gewaesserschutz-biologischer_zustand_diatomeen
Point of contact
Point of contact
Spatial resolution
Equivalent scale
- Denominator
- 0
- Topic category
-
- I Inland waters
Extent
Extent
- Description
-
Switzerland
))
- Maintenance and update frequency
- Annually
- GEMET
-
-
environment
-
- geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
-
- geocat.ch
-
-
watercourse
-
opendata.swiss
-
Resource constraints
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Language
- Deutsch
- Character encoding
- 8859 Part 1
- Basic Geodata
- false
- Basic Geodata Legal Level
- Federal
- Distribution format
-
-
ESRI File Geodatabase FileGDB (GDB)
-
OGC Geopackage (GPKG)
-
Digital transfer options
- OnLine resource
-
Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
- OnLine resource
-
ch.bafu.gewaesserschutz-biologischer_zustand_diatomeen
WMS-FSDI service, layer "Diatoms"
Digital transfer options
- OnLine resource
-
Nationale Beobachtung Oberflächengewässerqualität (NAWA)
Link to description
Digital transfer options
- OnLine resource
-
STAC Browser
Link for download
Digital transfer options
- OnLine resource
-
RESTful API von geo.admin.ch
RESTful API from geo.admin.ch
- Geometric object type
- Point
- Reference system identifier
- EPSG:2056
Metadata
- Metadata identifier
- 04193332-3a11-4fa6-bdc0-1bee0deb4bc1
- 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
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/04193332-3a11-4fa6-bdc0-1bee0deb4bc1
- Date info (Creation)
- 2016-02-05T08:26:09Z
- Date info (Revision)
- 2026-04-13T09:23:30.654095Z
Metadata standard
- Title
-
GM03Core
- Edition
-
1.0
