geocat.ch
Vertical Deflections
The deflection of the vertical is the angle between the direction of the plumbline and the perpendicular to the reference ellipsoid. In Switzerland, this angle can reach amounts of up to 1 minute of arc and must be considered for correcting all precise geodetic measurements. The vertical deflection is usually given in a South-North (Xi) and a West-East component (Eta). The vertical deflection is as well a valuable information for the geoid determination.We can observe vertical deflections by comparing astronomical coordinates (longitudes, latitudes) with geodetic coordinates determined e.g. by GPS.The accuracy of a measured deflection of the vertical by modern digital zenith cameras are in the order of 0.1 arc seconds.
Simple
- Alternate title
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Deviations of the vertical
- Date (Publication)
- 2016-05-31T12:00:00
- Identifier
- ch.swisstopo.lotabweichungen
Publisher
Spatial resolution
Equivalent scale
- Denominator
- 100000
- Topic category
-
- B Location
Extent
Extent
- Description
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Switzerland (extent of the railway network with areas close to the border)
- Geographic identifier
- CH
))
- Maintenance and update frequency
- Unknown
- GEMET
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-
astronomy
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- geocat.ch
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-
geoid
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- geocat.ch
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FSDI Federal Spatial Data Infrastructure
-
- Language
- Deutsch
- Character encoding
- UTF8
- Basic Geodata
- false
- Distribution format
-
-
Microsoft Excel (XLS)
-
Text
-
Digital transfer options
- OnLine resource
-
Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
- OnLine resource
-
ch.swisstopo.lotabweichungen
WMS-FSDI service, layer "Deviations of the vertical"
Digital transfer options
- OnLine resource
-
ch.swisstopo.lotabweichungen
WMTS-FSDI service, layer "Deviations of the vertical"
Digital transfer options
- OnLine resource
-
Link zu Zusatzinformationen
Link zu Zusatzinformationen
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:21781
Metadata
- Metadata identifier
- ef5df57e-8eb3-4b55-96e5-0e70adead7ad
- 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
Custodian
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/ef5df57e-8eb3-4b55-96e5-0e70adead7ad
- Date info (Creation)
- 2016-06-03T09:15:22Z
- Date info (Revision)
- 2026-04-13T09:42:01.378295Z
Metadata standard
- Title
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GM03_2
