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
Identification info
- Alternate title
-
Deviations of the vertical
- Date (Publication)
- 2016-05-31T12:00:00
- Citation identifier
- ch.swisstopo.lotabweichungen
Citation identifier
Point of contact
Responsible party
- Organisation name
-
Federal office of topography swisstopo, survey
- Position name
-
Surveying Division (Geodesy and Federal Directorate of Cadastral Surveying)
- Voice
-
+41 58 464 73 03
Address
- City
-
Wabern
- Postal code
-
3084
- Country
-
CH
- Electronic mail address
- Electronic mail address
- Electronic mail address
- Streetname
-
Seftigenstrasse
- Streetnumber
-
264
- Website
- https://www.cadastre.ch/ ( WWW:LINK )
- Role
- Publisher
- Organisation Acronym
-
swisstopo - Surveying
-
GEMET
-
-
astronomy
-
-
geocat.ch
-
-
geoid
-
-
geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
-
- Denominator
- 100000
- Language
- Deutsch
- Character set
- UTF8
- Topic category
-
- B Location, Reference Systems
Extent
- Description
-
Switzerland (extent of the railway network with areas close to the border)
))
- Geographic identifier
- CH
- Distribution format
-
-
Microsoft Excel (XLS)
()
-
Text
(
ASCII
)
-
Microsoft Excel (XLS)
()
- OnLine resource
-
Preview map.geo.admin.ch
(
MAP:Preview
)
Preview map.geo.admin.ch
- OnLine resource
-
ch.swisstopo.lotabweichungen
(
OGC:WMS
)
WMS-FSDI service, layer "Deviations of the vertical"
- OnLine resource
-
ch.swisstopo.lotabweichungen
(
OGC:WMTS
)
WMTS-FSDI service, layer "Deviations of the vertical"
- OnLine resource
-
Link zu Zusatzinformationen
(
WWW:LINK
)
Link zu Zusatzinformationen
- OnLine resource
-
RESTful API from geo.admin.ch
(
ESRI:REST
)
RESTful API from geo.admin.ch
- Geometric object type
- Point
- Reference system identifier
- EPSG:21781
Metadata
- Metadata language
- Deutsch
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2024-02-21T09:42:58.917Z
- Metadata standard name
-
GM03_2
Metadata author
Responsible party
- Organisation name
-
Federal office of topography swisstopo, survey
- Position name
-
Surveying Division (Geodesy and Federal Directorate of Cadastral Surveying)
- Voice
-
+41 58 464 73 03
Address
- City
-
Wabern
- Postal code
-
3084
- Country
-
CH
- Electronic mail address
- Electronic mail address
- Electronic mail address
- Streetname
-
Seftigenstrasse
- Streetnumber
-
264
- Website
- https://www.cadastre.ch/ ( WWW:LINK )
- Role
- Custodian
- Organisation Acronym
-
swisstopo - Surveying
