Show More Keywords
Geography, Territory and environment
During fieldwork in the official cadastral survey, a local adaptation must be made or proof must be provided that this is not needed. In low distortion areas, a local adaptation...
In Article 24 of the regulations governing geographic names (GeoNV), the Federal Office of Topography (swisstopo) is commissioned to establish, administer and publish the new of...
The Topographische Atlas der Schweiz was published over the period from 1870 to 1926, initially under the leadership of Colonel Hermann Siegfried. This was the first complete de...
The National Map 1:1 million is a small-scale topographic map giving an overview of Central Europe: Switzerland and its neighbours from Lyons to Salzburg and from Strasbourg to ...
All spatial data is based on measurement points. It is recommended to use the so-called fixed control points for all technical works which need reliable and accurate position me...
The National Map 1:500,000 is a topographic map giving an overview of Switzerland. The map content is updated periodically in a regular six-year cycle according to a revision pl...
Instead of providing a user with the new reference frame LV95 in a classical manner with site descriptions and coordinates, it is also conceivable to provide LV95 using permanen...
Swiss geoid model in the version of 2004 (CHGeo2004) in the reference system ETRS89. It forms the zero reference surface (approximated mean sea level) for height determination a...
Swiss geoid model in the version of 2004 (CHGeo2004) in the reference system CH1903. It forms the zero reference surface (approximated mean sea level) for height determination a...
The 1:500,000 Geological Map of Switzerland covers the whole of Switzerland and adjoining parts of neighbouring countries. It gives an overview of the distribution of the upperm...
Gravitational acceleration or gravity depends on the location of the measuring point and the mass distribution in the subsurface structure. A Bouguer anomaly is the difference b...
The Tectonic Map of Switzerland (GK500-Tekto) covers the whole of Switzerland and adjoining parts of neighbouring countries. It shows the large-scale structural and tectonic uni...
The Federal Office for the Environment (FOEN) is the body within the Swiss Geological Survey responsible for hydrogeology. The 1:500,000 Hydrogeological Map forms part of the Ge...
The 1:200'000 map of mineral resources (RK200) classifies the subsurface strata according to geochemical criteria. The map is overlaid with point data showing the occurrence of ...
The geothermal map shows the thermal energy that is produced in the subsurface and traverses the Earth's surface within an area of 1 m2. The heat itself is released in the Earth...
Isostatic anomalies can be deduced using the Pratt or Airy hypothesis. These anomalies correspond to the static flotation of the Earth’s crust in the upper mantle. The deviation...
The overall magnetisation of a rock consists of induced magnetisation caused by the Earth's magnetic field and of remanent magnetisation acquired by the rock during its formatio...
Geomagnetic maps are the result of measurements of total intensity, declination and inclination. The geomagnetic field is defined by a vector, which isrepresented in terms of it...
Geomagnetic maps are the result of measurements of total intensity, declination and inclination. The declination describes the angle formed between magnetic and geographic north...
Frequently Asked Questions