geocat.ch
Exceedance of critical loads for nitrogen
Excessive deposition of reactive nitrogen compounds (NO₂, NO₃⁻, HNO₃, NH₃, NH₄⁺) causes eutrophication (over-fertilisation) of sensitive ecosystems, contributes to soil acidification and can lead to elevated nitrate leaching with associated leaching of nutrients in the soil. In addition, it also leads to increased production of nitrous oxide. Methods for establishing critical loads for nitrogen are developed and applied in the framework of the UNECE convention on long-range transboundary air pollution. The time series shows the exceedances of the critical loads for nitrogen for sensitive ecosystems for the years 1990, 2000, 2005, 2010, 2015 and 2020 in a resolution of 1 square kilometre. Critical loads only apply for areas containing sensitive ecosystems. The inventories of the following sensitive ecosystems were used for the map: i) Raised bogs and fens from the Federal Inventories of Raised and Transitional Bogs and Fenlands; ii) Dry grasslands from the National Inventory of Dry Grasslands; iii) Various types of vegetation declared worthy of protection, from the vegetation atlas by Hegg et al. (1993); iv) Sites containing mountain hay meadows that are part of the Swiss Biodiversity Monitoring (122 sites); v) Oligotrophic alpine lakes in southern Switzerland (100 lakes); vi) National Forest Inventory sites (10331 sites) and 301 additional sites used for dynamic modelling. Sensitive ecosystems that are not included in these datasets are not considered. Detailed information about the model can be found in the report Critical Loads of Nitrogen and their Exceedances. Actual critical load exceedances can deviate from the modelled grid data. Single pixels must not be used for assessing critical load exceedances at single sites.
Simple
Identification info
- Alternate title
-
CLN Exceedance
- Date (Revision)
- 2022-08-15
- Citation identifier
- ch.bafu.luftreinhaltung-stickstoff_kritischer_eintrag
Citation identifier
- Collective title
-
Exceedance of critical loads for nitrogen
- Status
- Completed
Point of contact
Responsible party
- Organisation name
-
Federal Office for the Environment
- Position name
-
Air Pollution Control and Chemicals Division
- Voice
-
+41 58 485 63 27
Address
- Protocol
-
WWW:LINK
- Role
- Owner
- Last Name
-
BAFU Luftreinhaltung und Chemikalien
- Organisation Acronym
-
FOEN
- Maintenance and update frequency
- As needed
Appraisal AAP
- Duration of conservation
- 100
- Appraisal of archival value
- of archival value
- Reason for archiving value
- Evidence of business practice
- Comment on archival value
-
Diese Datenbank ist eine Metadatenbank zur Messwertedatenbank.
- Name
-
Cloud Optimized GeoTIFF (TIFF / TIF)
- Version
-
-
-
GEMET
-
-
air
-
pollutant
-
air pollutant
-
-
GEMET - INSPIRE themes, version 1.0
-
-
Atmospheric conditions
-
Human health and safety
-
-
geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
-
-
geocat.ch
-
-
opendata.swiss
-
e-geo.ch
-
Conservation and archiving planning AAP - Confederation
-
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Spatial representation type
- Grid
- Language
- Deutsch
- Topic category
-
- K Atmosphere, Climatology
Extent
- Description
-
Switzerland
))
- Basic geodata identifier type
- Federal
- Distribution format
-
-
Cloud Optimized GeoTIFF (TIFF / TIF)
(
-
)
-
Cloud Optimized GeoTIFF (TIFF / TIF)
(
-
)
Distributor
- OnLine resource
-
Preview map.geo.admin.ch
(
MAP:Preview
)
Preview map.geo.admin.ch
- OnLine resource
-
ch.bafu.luftreinhaltung-stickstoff_kritischer_eintrag
(
OGC:WMS
)
WMS-FSDI service, layer "CLN Exceedance"
- OnLine resource
-
ch.bafu.luftreinhaltung-stickstoff_kritischer_eintrag
(
OGC:WMTS
)
WMTS-FSDI service, layer "CLN Exceedance"
- OnLine resource
-
STAC Browser
(
WWW:DOWNLOAD-URL
)
Download server from geo.admin.ch
- OnLine resource
-
BAFU Website
(
WWW:DOWNLOAD-URL
)
Link for download
- OnLine resource
-
Nitrogen-containing air pollutants
(
WWW:LINK
)
Link to description
- OnLine resource
-
Link to portal
(
CHTOPO:specialised-geoportal
)
Link to portal
- Number of dimensions
- 500
- Cell geometry
- Area
- Reference system identifier
- CH1995_LV03
Metadata
- Metadata language
- Deutsch
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-12-17T09:42:56.84Z
- Metadata standard name
-
GM03 2+
- Metadata standard version
-
1.0
Metadata author
Responsible party
- Organisation name
-
Federal Office for the Environment
- Position name
-
Air Pollution Control and Chemicals Division
- Voice
-
+41 58 485 63 27
Address
- Protocol
-
WWW:LINK
- Role
- Point of contact
- Last Name
-
BAFU Luftreinhaltung und Chemikalien
- Organisation Acronym
-
FOEN
Metadata author
Responsible party
- Organisation name
-
Federal Office for the Environment / GIS service
- Position name
-
GIS service
- Voice
-
+41 58 464 21 59
Address
- Website
- https://www.bafu.admin.ch/bafu/de/home/amt/geschaeftsleitung-des-bafu/abteilung-digitales-ressourcen.html ( WWW:LINK )
- Role
- Point of contact
- Last Name
-
BAFU GIS
- Organisation Acronym
-
FOEN
Legislation Information
- Country
- Switzerland
- Language
- German
- Language
- French
- Language
- Italien
- Legislation Type
- Other legal text on national level
- Internal Reference
-
510.620
- Alternate title
-
Geoinformationsverordnung GeoIV
- Date (Creation)
- 2008-05-21
- Date (Publication)
- 2008-07-01
- Other citation details
-
Im Anhang 1 werden alle Geodaten aufgelistet, welche über ein gesetzliche Grundlage auf Bundesebene verfügen.
