- Last updated
- December 31, 1982
- Terms of use
-
- Organization
- Test Organisation
- Categories
- Regions and cities, Environment
Description
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's crust (around 30 km thick) generally by radioactive decay processes. On average, the heat flow in Switzerland is around 90 mW/m2. The highest figures are found in northern Switzerland and the lowest in the Alps/Jura. Differences are caused by deep groundwater circulating in permeable rock strata. The heat flow data is calculated from the temperature gradient (average value approx. 30 K/km) and heat conductivity of the rock (average value approx. 3 W/m/K). Paper map: Ph. Bodmer, 1982. Vector map: 2001.
Resources
Additional information
- Identifier
- 4690d71c-32c0-4615-8eb9-aa4a5afddb3c@organisation-test
- Issued date
- December 31, 1982
- Modified date
- -
- Publisher
- Bundesamt für Landestopografie swisstopo
- Contact points
- milan.beres@swisstopo.ch
- Languages
-
- English
- German
- French
- Italian
- Further information
- Landing page
- http://www.sgpk.ethz.ch/opencms/opencms/publications/pub_geoph_maps/
- Documentation
-
- Temporal coverage
- -
- Spatial coverage
- Landeskarte 1:500'000
- Update interval
- Irregular
- Metadata Access
- API (JSON) Download XML
